AD A1 0 4 6 3 8
ESTIMATES FOR THE PROBABILITIES OF SURFACE-
TO-AIR CLOUD-FREE LINES-OF-SIGHT AND LOW
CLOUD STATISTICS FROM SHIP OBSERVATIONS.
PART 1. FIFTEEN MARINE LOCATIONS
BY B. S. KATZ F. C. DeBOLD J. J. PEREZ ESAND'
RESEARCH AND TECHNOLOGY DEPARTMENT
24 NOVEMBER 1980
Approved for public rvfMw, diXribunon unlunttert
Reproduced From
Best Available Copy
UNCLASSIFIED
REPORT DOCUMENTATION PAGE
READ IXSTRl.'<~TION''
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REC'Pi£,>*T*S iTitOS SuMBF. P
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ESTIMAfES FOR THE PROBABILITIES OF ' ' \ t, 0 £. ^
SURFACE-TO-AIR CLOlJD-FREE UNES-OF-S.GHT AND \ ~ ' •' •' , /
LtSW ^LOUD STATISTICS ?P0M SHIP OBSERVATIONS. ' Rep'o^-JIiTT
?art" i, Fifteen - marin e locations , j__ ; ~ ! j__
B. S.^Katz, F. Cy/DeBold, J. J./Perez-Esandi j | // . /
4 F
/' • - /
9 9P#fO«M NO C**G AS •' Z A *»AV»e AND ADDRESS
Naval Surface Weapons .Center
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Silver Spring, i'D 20910
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( / < I November- 19 SO 1 '
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UNCLASSIFIED
15* OECl*VS»^»CATION DOWNGRADING
SCHEDULE
MS 3.S T P<9-, T ;C*« S'* t EmEnT of thit Report,
j Approved for public release; distribution unlimited.
>7 3iS T »;9 j t !On STAtfMEsT 'of the «6*rr«c f /n Bloc* 20, •! different Itom Report)
l ® iuP«*lEMENTABy NOUS
1 * KEY *0POS • oniinv* on • <<*• if and Identity by block number)
Marine cloud-free lines of sight,
lines of sight, marine meteorology, low cloud statistics
AS1TNACT 'Continue on reverie tide H ne refer? end Identify by block number)
Estimates of the probability of cloud-free lines of sight (PCFLOS) were
calculated for a set of nine angles using a modification of Lund and Shaniclin
universal method from lower cloud weather data taken at fifteen marine loca¬
tions. The data compilation covers periods from five to seven years (1964-
1971) and provides statistics for seasonal variations of lower cloud base
-heights and cover and low cloud, type and cover. —
DD , %-r,, 1473 € D• T|i;*« C* » MO v V *i OiSr.ur.’Tf
. \'n f .-. «. , : #v*
(continued)
UNCLASSIFIED
*i! / _5 43
CLUV.n.troKor -nnnn twimiF
UNCLASSIFIED
[S PAGE (Whmn Dmf Enf*f<rd>
jBoth the seasonal weather data (winter, spring, and summer) and the PCFLOS
are tabulated for each location for nine different elevation angles from 10’
to 90 degrees above the horizontal and for the heights for which lower cloud
base data were available.
The main assumption of the unmodified method-, which is fully described in the
text, is that the universal method can be applied successfully to the statistics
for individual low cloud base height recording cells.
Intermediate computational results corresponding to base height cells and the
values of PCFLOS through all clouds, calculated by the unmodified method,
are also provided.
Data from four selected locations were plotted for illustration and comparison
purposes. PCFLOS statistics for various angles and cloud base heights were
related to ability to visually detect targets at various ranges, altitudes,
and elevation angles, by means of graphs that precalculated the slant range.
A summary of the weather statistics and PCFLOS for all stations is also
included.
UNCLASSIFIED
SffuWfTV CL »CAT»0* O* Tut* * tkC t f.fWhmn Dim Fnitrid)
NSWC TR 78-143
FOREWORD
This work presents cloud statistics derived from individual weather observa¬
tions collected by meteorologists on board Ocean Station Weather ships from North
Atlantic and Pacific locations and from passenger ships at various locations. The
data was collected during the time period January 1965 to December 1971 and was
broken down into four three-month seasons. Thematrix methods developed by
Ivar Lur.J, AF6L, were used to calculate Cloud-Free Line of Sight probabilities up
to three kilometer altitudes (lower clouds). Included in this report are statis¬
tics on cloud base heights, cloud covers and cloud types. Mr. Tom Fredian of the
.Naval Oceanographic Command, NS.TL Station, Mississippi supplied photographs of the
low cloud types found in this publication.
»
This study was funded by the U.S. Navy's Electro-optical Meteorology Program
at the Naval Ocean Systems Center (Code 532) under program element 627E9N.
Task Z r 59-55i-002.
fi/i i
H. R. RIEDL
By direction
NSWC TR 78-143
CONTENTS
Chafer
1 INTRODUCTION .. 1-1
2 STATISTICS FOR CLOUDS BELOW 2500 METERS. 2-1
3 METHOD FOR THE DETERMINATION OF ESTIMATES FOR
PCFLOS (A^) AND SLANT RANGES . 3-1
4 PCFLOS (A;Hj) AND SLAHT RANGE RESULTS. .. 4-1
5 SUMMARY AND COMMENTS. .5-1
BIBLIOGRAPHY ..R_1
GLOSSARY AND NOTATION. .. G-l
APPENDIX A TABLES FOR THE STATISTICS OF CLOUDS BELOW 2500 METERS.A^l
APPENDIX B TABLES FOR PINT (A.,H.) .B-l
APPENDIX C TABLES FOR PCFLOS (Aj ,H.) . C-l
APPENblX D GRAPHS FOR LOCATIONS 1, 9, J, M.D-l
iii/iv
ILLUSTRATIONS
Figure
1-1 SURFACE STATIONS.. . ... 1-3
3-1 SLANT RANGE GEOMETRY.. ..3-5
3- 2' . SLANT RANGE TO GIVEN HEIGHT..3-6
4- 1 CLO.UD BASE HEIGHT STATISTICS. LOCATION M.4-3
4-2 to 4-4 PROBABILITY OF A CLOUD-FREE LINE-CF-SI3HT TO VARIOUS ALTITUDES
AS A FUNCTION OF ELEVATION ANGLE. LOCATION M. WINTER, SPRING,
AND SUMMER...4-6
4-5 PROBABILITY OF CLOUD-FREE LINE-OF-SIGHT TO VARIOUS ALTITUDES
COMBINED WITH SLANT RANGE CURVED EARTH GEOMETRY. LOCATION M.
SPRING.4-9
4-6 to 4-8 PROBABILITY OF CLOUD-FREE LINE-OF-SIGHT VS. TARGET SLANT RANGE.
LOCATION M, WINTER, SPRING, AND SUMMER . . .'.4-10
4-9 LINES OF CONSTANT PCFLUS (A., (SR).) IN POLAR COORDINATES.
LOCATION M. WINTER ....... . ; . 4-13
D-l. LOWER CLOUD BASE HEIGHT STATISTICS. LOCATION 2. WINTER, SPRING,
AND SUMMER.D-2
L'-2 to D-4 PROBABILITY OF A CLOUD-FREE LINE-OF-SIGHT. TO VARIOUS ALTITUDES.
AS A FUNCTION OF ELEVATION ANGLE. LOCATION 2. WINTER, SPRING,'
AND SUMMER..; . . . . D-3
D-S PROBABILITY' OF CLOUD-FREE LINE-OF-SIGHT TO VARIOUS ALTITUDES.
COMBINED WITH A SLANT RANGE CURVED EARTH GEOMETRY.
LOCATION 2. SPRING . 0-6
0-6 LOWER CLOUD BASE HEIGHT STATISTICS. LOCATION 9. WINTER, SPRING,
AND SUMMER. D _7
D-7 to D-9 PROBABILITY OF A CLOUD-FREE LINE-OF-SIGHT. TO VARIOUS ALTITUDES,
AS A FUNCTION OF ELEVATION ANGLE. LOCATION 9- WINTER, SPRING,
AND SUMMER. D-8
D-10 •PROBABILITY OF CLOUD-FREE LINE-OF-SIGHT'TO VARIOUS ALTITUDES
COMBINED WITH A SLANT RANGE CURVED.EARTH GEOMETRY.
LOCATION 9. SPRING. . D-ll
0-11 ' LOWER CLOUD BASE HEIGHT STATISTICS. LOCATION J. WINTER, SPRING,
AND SUMMER.. . D-12
0-12 to D-l4 PROBABILITY OF A.CLOUD-1 REE LINE-OF-SIGHT, TO VARIOUS ALTITUDES,'
AS A FUNCTION OF ELEVATION ANGLE. LOCATION M. WINTER, SPRING,
AND SUMMER . ........... D-13
0-15 PROBABILITY OF CLOUD-FREE LINE-OF-SIGHT TO VARIuUS ALTITUDES,
COMBINED WITH A SLANT RANGE CURVED EARTH GEOMETRY. LOCATION
J. SPRING ... . . ’..... 0-16
D-l6 LOWER CLOUD BASE HEIGHT STATISTICS. LOCATION M. WINTER, SPRING,
AND SUMMER... . . ... D-17
D-l7 to 0-19 PROBABILITY OF A CLOUD-FREE LINE-OF-SIGHT. TO. VARIOUS ALTITUDES,
AS A FUNCTION OF ELEVATION ANGIE. LOCATION M. WINTER, SPRING,
AND SUMMER. ........ 1 ..... . 0-18
0-20 PROBABILITY OF CLOUD-FREE LINE-OF-SIGHT TO VARIOUS ALTITUDES.
COMBINED WITH A SLANT RANGE CURVED EARTH GEOMETRY. LOCATION
M.'SPRING . D _2i
NSWC TR 78-143
TABLES
Table
1- 1 SURFACE STATIONS .
2- 1 NUMBER OF OBSERVATIONS PEs SEASON AND LOCATION . , .
2-2 CELLS FOR RECORDING LOWER CLOUD BASE HEIGHT AND THEIR CODE
IDENTIFICATION ..
2-3 CODE FOR CLOUD COVER .
2-4A-B CODE FOR LOW CLOUD TYPE (Cj_).. .
2-5A to 2-7A FREQUENCIES FOR LOWER CLOUD BASE HEIGHTS, TRANSPOSED OF
THE LOWER CLOUD COVER MATRIX L (C, H) LOCATION M. WINTER-• •
Page
. 1-4
. 2-3
. 2-4
: 2-5
, 2-6
. 2-10
' 2-5B to 2-7B LOW CLOUD TYPE STATISTICS. LOCATION M. WINTER, SPRING,
AND SUMMER.. 2 ' 10
3-1 PROBABILITIES OF CLOUD-FREE LINES-OF-SIGHT AS A FUNCTION OF
ELEVATION ANGLE AND. TOTAL SKY COVER U(A, C).3-4
3- 2 MATRIX FORM OF EXPRESSION (3-2) FOR PCFLOS..3-7
4- 1 to 4-3 PINT (A it Hj). LOCATION M. WINTER, SPRING, AND SUMMER.4-4
4-4 to 4-6 PCFLOS (A., Hj). LOCATION M. WINTER, SPRING, AND SUMMER.4-5
4- 7 to 4-9 PROBABILITY OF CLOUD-FREE LINE-OF-SIGHT 'S. SLANT RANGE FOR
NINE ELEVATION ANGLES. LOCATION M. WINTER. SPRING. AND SUMMER . 4-10
5- 1 to 5-3. SUMMARY OF STATISTICS FOR LOWER CLOUD BASES BELOW 2500 METERS.
WINTER, SPRING, AND SUMMER...5-5
5-4 to 5-6 SUMMARY OF LOW CLOUD (C L ) STATISTICS.5-8
5-7 SUMMARY FOR PCFLOS (A., Hj), LOCAL SEASONAL VARIATION.5-11
A1A to A45A FREQUENCIES FOR LOWER CLOUD BASE HEIGHTS. TRANSPOSED OF THE
LOWER CLOUD COVER MATRIX L (C, H) FOR FIFTEEN LOCATIONS-'
WINTER, SPRING, AND SUMMER . . . ...A-2
A1B to A45B LOW CLOUD TYPE STATISTICS FOR FIFTEEN LOCATIONS. WINTER,
SPRING, AND SUMMER.. . ... . A-2
B1 to B45 PINT (A.,H. 1 CONTRIBUTION TO PCFLOS (A..H.) DUE TO LOWER CLOUDS
WITH BASE AT’H FOR FIFTEEN LOCATIONS. WINTER, J SPR1NG, SUMMER ...... B-2
Cl to C45 PC.-'tOS (A., H.) FOR FIFTEEN LOCATIONS. WINTER, SPRING, AND-
Sl'MioLR . . \ . ... . .. i .C-2
C46 pcr,.es (A.) FOR FIFTEEN LOCATIONS. WINTER, SPRING, AND SUMMER • • • C-19
NSWC TR 78-143
CHAPTER 1
INTRODUCTION
The operation of systems based on the propagation of visible and/or infrared
electromagnetic signals through the atmosphere can be severely restricted by clouds
interposed in the line of sight (LOS). Even for the preliminary designs of atmos¬
pheric optical systems it becomes necessary to obtain estimates of the probabili¬
ties of cloud-free lines of sight (PCFLOS) at the potential sites of operation in
order to take account of the impact of this aspect of atmospheric phenomena in
their performance.
It is the main objective of this report to supply such first rough estimates
for a discrete set of surface-to-air LOS up to a height of the order of 2500 m at
fifteen marine locations.
The identification code for these locations and their coordinates are given
in Figure 1-1 and Table 1-1.
We proceed next to highlight the content' of this report.
Weather information on clouds needed for the calculations or relevant to the
problem is discussed in Chapter 2 on "Statistics for Clouds Below 2500 Meters,"
which includes the data for station M as an example. Our statistical weather data
for all locations is reproduced in Appendix A.
Chapter 3 deals with the "Method for the Determination of ^CFLGS (A., H_) and
Slant Ranges," that is, the probability of cloud-f'ee LOS at an elevation angle
A. (A. ,= 10°, 20°, ... 90°) up to a height H, = 25. 75, 150, 250, 450. 800, 1250,,
1750, 2250 meters) and the corresponding slant ranges for target sighting. Our
procedure, which makes use of the universal method of Lund and Shanklin (see
bibliography) is fully discussed in this chapter.
Appendices B end C supply, respectively, an intermediate step and the final
results of the calculation of PCFLOS (A., H.) for winter, spring, and fall for
each location. They are explained in Chapter 4 where station M has been singled
out again as an example by having its data and results listed ana plotted in
various ways.
In order to provide a quick visual comparison among various locations, we
produced also plots for stations 1, 9, and J, although not as many as for M.
These plots and a duplication of the corresponding ones of M constitute Appendix D.
1-1
Finally, we summarize the results on the statistics of clouds below 2500
meters, PCFLCS (A., H.) and slant range and include some relevant comments about
them in Chapter 5: J
NSWC TR 78-143
CHAPTER 2
STATISTICS FOR CLOUDS BELOW 25.00 METERS
Records of weather observations for the marine locations studied in this
report were supplied by the National Climatic Center, Asheville, North Carolina.
They were performed every three (at some locations six) hours and cover the period
from 1965 to 1971 or 1972 for all stations except station H which covers the period
from 1970 to 1978.
The observations were separated in four seasons. Spring contains all of
March, April, and May; summer--June, July, and August; fall--September, October,,
and November; winter--December, January, and February. Fall data, which was found
to be similar to spring's, was not included in this study. The actual numbers ov
observations for each location and season appear in Table 2-1.
The data was accumulated at the fifteen northern hemisphere locations shown
in Figure 1-1, with alphanumeric designations, latitude and longitude given in
Table 1-1. Observations made in some areas were combined and are reported as
belonging to single locations. Thus, data from stations 1 and 2, for example,
both located in the Mediterranean Sea were combined and are presented here as
of location 1. Likewise Southeast Asia data from 9 and 10 are given as of 9.
Specifically, the records supDlied by the National Climatic Center include:
a. lowest cloud base height
b. low cloud amount
c. low cloud type, C L
d. middle cloud type, C M
e. high cloud type,
f. total cloud cover
Lower cloud heights are given by indicating in which height cell the clouds
were observed. Table 2-2 lists the ten WMO height cells with their code numbers,
heights, and midrange points. For the last cell we have chosen 3000 meters as
the midrange point for the LOS estimates.
In this repo.rt the midrange heights. H are used to identify the base height
cells.
Tables 2-3, 2-4A, and 2-4B give the WMO code and definitions ana photographic
illustrations for lower and total cloud cover (amount) and for low cloud types (Cp).
Notice that the lowest cloud base in our observation is not always due to what is L
defined in Tables 2-4A and 2-4B as a low cloud type: if none of these is present
2-1
NSWC 78-14°
in a particular instance, the lowest cloud base would be that of a middle or high
cloud type.
The coded records of the marine observations supplied by the National Climatic
Center have been interpreted according to the 1960 WMO Code 1601 and used to obtain
the lower cloud base height ard low cloud statistics. Appendix A consists entirely
of tables of lower cloud base and low cloud statistics for winter, spring, ana
summer for all fifteen locations. The top table of each page gives the elements of
the transposed of the local lower cloud base matrix L (C-, H.) multiplied by 100.
The elements of L (C^, H.) are the relative frequencies corresponding to the two
dimensional cell c-endted^by {C^, H^) where C.j is che lower cloud cover and the
midrange height of the i^" cell. We take these frequencies as probabilities.
The right hand colunm of tne top tables is the ma ginal frequency correspond¬
ing to base heiant. it is obtained by adding the elements on the same row and is
denoted here by
9
h'CHJ sV KCj, H ) (2-1)
i = 1
Similarly the marginal frequencies for cloud cover appear on the li-e labeled
"All lower clouds (percent)."
The tables on the lower half of each page deal with tne statistics for low
cloud type for the same height cells and should be interpreted according to Tables
2-4A and 2-4B. We have made a small modification to the low cloud classification
such that all the frequency entries for the 0-50 meter base height have been
transferred to a new category labeled "Fog.,".
■ ' . ’ !
The low cloud type tables were not used explicitly in the LOS calculations.
For the purpose of illustration, we reproduce in this, chapter ,the cloud tables for
station M as Tables ?-5A a-i B through Tables 2-7A and b.
Four locations, ,9, J, and M, have their lower cloud base frequencies
plotted for three seasons in Figures 01, 06, Dll, and D16 of Appendix D.
The reader should recall that the sharp increases in frequency often found
for 3000 meters in the,lower cloud base statistics includes observations of no
clouds and of all clouds above 2500 meters and that, in general, it would not
correspond to actual clouds being present at or near that height but to the inte¬
grated value over a very extensive cell.
2-2
NSWC TR 78-143
TABl.E 2-1
NUMBER OF
OBSERVATIONS PER
SEASON AND
LOCATION
Location
! La'itude
j
i
Longitude :
Winter
Spring *
i
Summer
:
9/10
177*
107E
4245
410'
3673
T
29N
1 35F
1454
2033
4066
N
30 N
140W
3348
3394
3392
V
31N
164E
2400
2722
2839
1/2
‘ 33N
34E
618
707
740
) 36 N
. OE
0
44N
41W
• 2299
2444
2607
K
45N
16W
1731
1777
1713
H
48N •
38W
3521
1831
1979
P
50N
145W
2496
2163
2514
C
53N
35W
2414
2625
2739
J
■ 53N
19M
2097
2191
2214
B
56N
51W
2652
2646
2790
I
60N
19W
1976 .
2194
2248
A
62N
33W
2032
2156
2091
M
66N
2E
246.3
2495
2562
2 -:
TABLE 2-2 CELLS FOR RECORDING LOWER CLOUD BASE HEIGHT AND THEIR CODE INDENTIFICATION
WMO CODE 1300
FIG' RE
HEIGHT IN
METERS
MID RANGE HEIGHT H
METEFiS
0
0- 49
25
. 1
50- 99
75
2
100- 199
150
3
200 - 299
250
4
300- 599
450,
5
60C 999
800
6
1,000 - 1,499
1250
7
1,500-1,999
1750
8
2.000 - 2,499
2250
9
2,500 or high*
3000
' or no clouds
or higher
‘FROM SURFACE MARINE OBSERVATIONS. TAPE DECK TDF-11
NSWC TR 78-143
TABLE 2-3 • ■ ■
CODE FOR CLOUD COVER*
TOTAL CLOUD AMOUNT (N) Fraction of celestial dome covered by all clouds.
LOWER CLOUD AMOUNT (N^) Fraction of celestial dome covered by all the, C^
clouds and, if no C^ cloud is present, that fraction
covered by all the C M clouds present.
0 = Clear
1 = 1 Okta or less, but not zero
2-8 = 2-8 Oktas
9 = Sky obscured or cloud amount cannot be estimated.
*from Surface Marine Observations Tape Deck TDF-11
2-5
NSWC TR 78-143
TABLE 2-4A
CODE FOR LOW CLOUD TYPE (C|_)* +
0 = No stratocumulus, stratus, cumulus or cumulonimbus.
i
1 = Cjmulus with little vertical extent and seemingly flattened, or ragged cumulus
other than of bad weather, or both.
2 = Cumulus of moderate or strong vertical extent, generally with protuberances
in the form of domes or towers, either accompanied or not by other cumulus
or by stratocumulus, all having their base at the same level.
3 3 Cumulonimbus the summits of which, at least partially, lack sharp out!ines
but are neither clearly fibrous (cirriform) nor in the form of an anvil;
cumulus, stratocumulus or stratus may also be present.
4 = Stratocumulus formed by the spreading out of cumulus; cumlus may also be
present.
5 * Stratocumulus not resulting from the spreading out of cumulus. ■
7 = Stratus fractus of bad weather (generally existing during precipitation and
a short time before and after) or cumulus fractus of bad weather, or both
(pannus), usually below altostratus or nimbostratus.
8 = Cumulus and stratocumulus other than that formed from the spreading out of
cumulus; the base of the cumulus is at a different level from that of the
stratocumulus.
9 = Cumulonimbus, the upper part of which is clearly fibrous (cirriform), often
in the form of an anvil; either accompanied or not by cumulonimbus without
anvil or vibrous upper part by cumulus, stratocumulus, stratus or pannus.
+ . from Surface Marine Observations Tape Deck TDF-11
# Fog * All clouds in the 0-50 meter base height cell
2-6
NSWC TR 78-143
Cl 2: Cumulus of moderate or strong
vertical extent or Towering Cumulus,
generally with protuberances in the
form of domes or towers, possibly ac¬
companied by other Cumulus cr by
Stratocumulus, all having their bases
at the same level. Cumulus of areat
vertical extent sometime- oroduce
virga and showery precipitation.
Cl Is Cumulonimbus the summits of
which, at least partially, lack sharp
outlines, but are neither clearly
fibrous (cirriform) nor in the form of
an anvil; Cumulus, Stratocumulus or
St-atus may also be present. These
clogds are often accompanied by thunder¬
storms and showery precipitation.
TABLE 2-4B CODE SPECIFICATIONS FOR C L CLOUDS. (FROM NAVAIft 50-10 IFM H-1B))
2-7
NSWC TR 7S-143
--s.
Ci, 4: Stratocumulus formed by the
soreadinq out of Cumulus; Cumulus may
also be oresent.
S: Stratocumulus not resultinq
from the spreadinq out of Cumulus.
This cloud is sometimes accompanied
by precipitation of a liqht intensity
ar.d a continuous or intermittent
character.
C^ 6: Stratus in a more or less con¬
tinuous sheet or layer, or in rcqqed
■ shreds,, or both, but no Stratus Fractus
of bad weather. Any precipitation' from
this cloud is in the form of drizzle
or snow qrains.
TABLE 2-4B (CONTINUED)
2-8
NSWC TR 7S-143
Cj, 7: Stratus Fractus of bad weather
or Cumulus Fractus of bad weather, cr
both (pannus), usually below Alto-
stratus or Vimbostratus. The term
“bad weather" denotes the conditions
which generally exist during precioi-
tation and a short time before and
after.
i
Cl 8: Cumulus and Stratoeumulus other
than that formed from, the spreading
out of Cumulus; the base of the Cumulus
is at a different level from that of
the Stratocumulus.
Cl 8: Cumulonimbus, the upoer part of
which jia clearly fibrous, (cirriform) ,
often in the form of an anvil, or
Cumulonimbus Mamma which has base with
hanging pouches or protuberances;
either accompanied or not by Cumulo- ■
nimbus without anvil or fibrous upper
part, by Cumulus, Stratocumulus,
Stratus or pannus. 'These clouds are
often accompanied by thunderstorms and
showery precipitation.
TABLE 2-4B CONTINUED)
i
2-9
TABLE 2—6A WINTER LOCATION M
FREQUENCIES FOR LOWER CLOUD BASE HEIGHT
TRANSPOSED OF THE LOWER CLOUD COVER MATRIX UC,H)
(CLOUD COVER IN EIGHTS}
vyr.-- r ”n ' 1 ! i'vW
NSWC TR 78-143
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(PERCENT!
TABLE 2-6A SPRING LOCATION M
FREQUENCIES FOR LOWER CLOUD BASE HEIGHT
TRANSPOSED OF THE LOWER CLOUO COVER MATRIX L (C, H)
(CLOUD COVER IN EIGHTS)
NSWC TR 78-143
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NSWC TR 78-143
CHAPTER 3
METHOD FOR THE DETERMINATION OF ESTIMATES FOR PCFLOS (A i , Hj) AND SLANT RANGES
The procedure used for the calculation of estimates of PCFLOS (A., H.) in
terms of the elevation angle, and target height is based on the work of Lund.and
Shanklin who proposed a universal method for the determination of cloud-free lines
of sight in their 1973 jiaper.'
In brief, Lund and Sharklin established statistically a relation between
P(C-), the probability of a cloud cover C,, as determined by the usual visual
weather observations practice^ and PCFLOS (A.) found by careful examination of
whole-sky photographs taken at weather observation time..
Before proceeding any further we must emphasize again the difference between
PCFLOS (A.j) of Lund and Shanklin and PCFLOS (A-, that we wish to evaluate:
PCFLOS (A.) is the probability of a clouds free line of sight through all clouds
present against a deep sky background while PCFLOS (A., H,) is the probability
up to a height H. regardless of the background.
J
In our notation the Lund and Shanklin relation is expressed by
9
PCFLOS (A.) =£ U(A., Cj) P(C..) (3-1)
j = 1 •
where A i and Cj are the values of the elevation angle A and cloud cover C, P(Cj)
the probability of C taking the value C i and the matrix.elements U(A., C.) the
probability of a CFLOS at A- and Cj.
Actually Lund and Shanklin determined a general matrix U for all clouds and
several others specialized for various sets of cloud types. The general one,
which is the one that we apply here, can be seen in Table 3-1 in this chapter.
It has nine cloud cover columns (rather than eleven) to match the available marine
low cloud data. _
Vund, I.A., and Shanklin, M.D., 1973: "Universal Methods for Estimating Prob¬
abilities of Cloud-Free Lines-of-Sight through the Atmosphere," J. Appl. Meteor.
12, 1222-1228.
^"Surface Observations," Fed. Meteor. Handbook No. 1, First and Second eds., Dept,
cf Commerce
"Surface Observations," NAVAIR 50-1D-1 (FMH-1B) 1 Jan 1980, Dept, of the Navy
3-1
NSWC TR 78-143
We proposed the following expression for the estimation of PCFLOS (A., H,),
' J
PCFLOS (A
j f JL
i- H j) ■ 1 -E [ ' X)
U (A., C £ ) X
k = 1 £ = 1
L (C £ , H k ) / P (H k )J P(H k ) : 1 < i £ 9, 1 < j < 10
where L (C a , H. ) are the matrix elements of the local lower cloud matrix of
Chapter 2.
One can arrive at this expression by arguing that
9
(3-2)
, U <V C *> L <V H k>' P (H k )
k*
gives, for the base height cell at H. , the probability of a CFLOS at A. and H.
th * IK
where the k column of L/P is regarded as a distribution for cloud cover. Here
we have made the assumption that Lund and Shanklin's use of the universal matrix
U is applicable to individual base height cells. The complement to 1 is then the
probability for a LOS to be obstructed by clouds due to the structure of the lower
clouds present at this height; and the product of this quantity with P(H k ), defined
in Chapter 2 as the frequency (probability) for the presence of lower clouds at H
gives the probability of sighting a cloud at H k when the line of sight is clear
up to H. . The sum over all the intervening height cells can now be taken as the
probability of having sighted a cloud before or at this height. In turn its com¬
plement to 1 is an estimate of the probability for a line of sight to reach H k>
Equation (3-2) involves matrices but it does not lend itself to be written
readily ir matrix form. For those who prefer a matric expression, we include it
in Table 3-2 at the end of this chapter.
alternate expression for PCFLOS (A^, H^) we can write
As an
with
PCFLOS (A., Hj) = ! - £ ■ [”l - PINT (A f , H k )J
j r 9
f I NT (A r H.) = 1 - 1 -£■ .U (A., C £ ) x
<V H k >' p _( H k>j p < H k» '
(3-3)
(3-4)
3-2
NSWC TR 78-143
This form shows explicitly the contribution of each base height cell as if
it were isolated.
Inserting the values of the elevation angle A and the cloud base height H,
for which we have the values of PCFLOS (A., H.) in the following formula, we obtain
the corresponding value of the slant range SR,
SR = -R sin A + ^ H $ (2R + H s )'cos A +
V
where
H s is the sensor's height and
R = 6.36 10^ m is the earth's radius.
Figure 3-1 illustrates the geometry involved in the problem and Figure 3-2 provides
a monograph for quick determination of slant ranges of less than 20 km neglecting
the sensor’s height.
■R sin A + JH (2R +
cos
-1
+ H - h/ + 2R (H -
H s )
(3-5)
3-3
TABLE 3-1 PROBABILITIES Of CLOUD FREE LINES-OF-SIGHT AS A FUNCTION OF ELEVATION
ANGLE AND TOTAL SKV COVER. UiA. C>
NSV¥C TR 78-143
FIGURE 3-2 SLANT RANGE TO GIVEN HEIGHT
NSWC TR 78-143
3-7
fPf&gv*
NSWC TR 78-143
CHAPTER 4
PCFLOS (A-, Hj) AND SLANT RANGE RESULTS
The lower cloud base data for the fifteen marine locations of Figure 1-1
(Table 1-1) that was discussed in Chapter 2 has been processed with the computer
algorithms of formulae
(3-3) for PINT (A., H.),
(3-4) for PCFLOS (A^ H.),
(3-1) for PCFLOS (A.)
and collected in tables for winter, spring, and summer in
Appendix B, PINT (A., Hj),
Appendix C, PCFLOS (A-, Hj) and PCFLOS (A.)
These tables are arranged in the order given in Table 1-1: the PCLOS (A^) table
being the last one in Appendix C.
Four locations, namely, 1 ,■ 9, 3, and M, have been selected for more detailed
consideration, and graphs have been plotted with the values calculated for the
lower cloud base statistics, and PCFLOS (A., H-). These graphs are found in
Appendix D. For each of the selected locations we include in consecutive order:
a. Lower cloud base height statistics for uini’er, spring, and summer
b. PCFLOS (A., H.) for winter
c. PCFLOS (A., Ht) for spring
d. PCFLOS (a!. Hr) for summer
e. • Combined graphs for PCFLOS (A.,.H.), lower cloud base heights (target
height) and slant range. J
With the intention of simplifying the reader’s task and of illustrating more
intuitively the results of our calculations, we reproduce in this chapter the
tables and graphs corresponding to location M; and, in addition, we include, for
the same location, tables and graphs for slant range and one graph for lines of
constant PCLOS (A^, (SR)j) as described below.
In,figure 4-1 we have plotted the values of the lower cloud base frequencies
listed in Tables 2-5A to 2-7A of Chapter 2.
Tables 4-1 to 4-3 give PINT (A., H.) for winter, spring, and summer respec¬
tively; and Tables 4-4 to 4-6 give PCFLoS (A^ , H.) for the same sequence of
seasons. J
The latter values are plotted in Figures 4-2 to 4-4. They show clearly the
influence of the region of higher cloud base frequencies on the probability of a
4-1
NSWC TR 78-143
cloud-free line of sight. Figure 4-5 for the spring season is a nomogram relating
slant range, tarqet height, and PCFLOS (A., H.).l
' «J
Ir, Tables 4-7 to 4-g we list for each season the values of the slant range
(SR) (A., H.) for which we have data points (A., H.) and the corresponding prob¬
ability PCFLOS (A., H.) at the same point. Th£ slant ranges were calculated with
expression (3-5) neglecting the sensor's height. We include also three figures, .
4-6, 4-7, and 4-8, where we plot the values in these tables for five elevation
angles. The numbers in parenthesis are the values of PCFLOS (A.) calculated with
(3-1) and listed in Table C-46. 1
Finally, we give for the winter season only Figure 4-9 which shows very rough
estimates, ^n polar coordinates, of lines of constant probability PCFLOS (A., (SR).)
fer equivalently PCFLOS (A,, H-)). This graph was obtained by rouhding off 1 J
subjectively the curves plotted for the winter results in Figure 4-7, interpolating
and replotting in polar coordinates for slant ranges of less than 13,000 feet.
We wish to remind the reader that the heights listed in the tables constitu¬
ting Appendices A and B and their reproductions in the text are the midrange values
given in Table 2-2: that the low-cloud statistics cover in detail up to 2500
meters and that the entry for 3000 meters is only a representative value for
heights over 2500 meters. In appendices C and D we use the values for the top
of the height cells up to 25C0 meters and 3500 for the top cell.
^Suggested by Captain W. L. Boyer, U. S. Navy. Former Deputy Commander, NSWC,
presently at ONR.
4-2
r r t i rr— - r
n> ♦ rj M •- O
o o 6 d o
A1I1I8V80U4 1H 3SV9 QH01D
4-3
2-5A, 2-6A, AND 2-7,
NSWC TR 78-143
PINT (A,H) TABLE 4-1 SPRING LOCATION M
CONTRIBUTION TO PCFLOS (A. HI DUE TO CLOUDS WITH BASE HEIGHT AT H.
H METERS
IS DCS
2S DCS
3* DC*
*• DCS
5( DC*
•• DC*
7* OC*
•• DC*
•• OC*
25.0*1*
.HU
.*•55
.••ST
.M5t
.•HI
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.••72
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• MTS
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.•725
.•731
.*73*
,*T3*
.*737
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.**71
.**••
.*517
.*531
.•53'
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.77*5
.7*17
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.7*75
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.•*7*
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ITS*.****
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.•••2
.••*5
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.**75
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.**7*
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.*••2
.*••3
.*••7
.**••
.***•
.mi
• MM
.***2
TABLE 4-2 SUMMER
CONTRIBUTION TO PCFLOS (A, HI DUE TO CLOUDS WITH BASE HEIGHT AT
H.
H METERS
is oca
2S DCS
3* DC*
*• DCS
5« DC*
•• DC*
TS OC*
•• OC*
•• DCS
ZS.HM
•n«s
.•955
.*55*
.*5**
.•**•
.«*••
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.Hit
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.**5*
.**5*
.*♦50
• **S»
I1I.IIM
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.Nit
.••1*
.••27
.*•33
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.•*3*
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.9*3*
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.•292
.•333
.•35*
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.•*05
.**•*
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.7325
.7***
.75**
.75*5
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• 7*3*
.7*1*
•SI**
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• *5«5
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.•5*7
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MM.HM
•mi
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.**•2
•*M2
.•••5
TABLE 4-3 WINTER
CONTRIBUTION TO PCFLOS (A. HI DUE TO CLOUDS WITH BASE HEIGHT AT
H.
HMETERS
!• DC*
2» DC*
3* DC*
*• DC*
5* DC*
•• DC* .
7* OC*
•• DC*
•• OC*
2S.MM
.*•7*
.**7*
.•*77
.**77
.**77
.**77
.**77
.M7T
.••7*
75.MM
.•*•7
.***7
.***7
.***7
.***7
.***7
.***7
.***7
.***7
IS*.****
.*•51
.**53
• •*5*
.*•59
.••55
.**55
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.**5*
2S*.**«*
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.*7*5
• M*5
.••13
.••I*
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.M2*
.••23
• M23
*S*.*M*
.*•••
.7257
• 7***
• 75«*
.7*7*
. *717
.77**
.77*3
.777*
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.7125
.7351
.7521
.7*23
• 7«>7* .
.77*1
.772*
.7733
125*.****
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.•••7
.*•*7
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.***3
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.***3
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.**••
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\
\
4-4
NSWC TR 78-143
PCFLOS (A,H) TABLE 4-4 SPRING LOCATION M
PROBABILITY OF CLOUO-FREE LINES-OF-SIGHT FROM THE SURFACE TO GIVEN HEIGHT. H.
HEIGHT H
(METERS)
10 OEG
20 DEG
30 Dili
40 OEG
50 DEG
60 OEG
to DEG
au UtG
90 UEb
so.uooo
.9852
• 9055
.98b 7
.96*6
.9860
• 9860*
• 9660
.9860
.9860
100.0000
.904b
.984#
.9850
• 9052
.9853
.9853
• 905-*>
.9854
.985*
200.0000
• 9701
.9717
.9722
.9727
.9731
.9732
.97 32
.9732
.9/32
300.u000
• 93H5
.9417
.94 35
.9452
.9462
.9466
• 9468
.9470
.9470
600.0000
.7307
.7599
.7745
.7862
.7933
.7963
• 7965
.8001
.8005
1000.OO00
.4241
.4839
.5224
• 5522
.5698
.5780
• 5635
.5876
.5890
15*00.0000
.3493
.4156
. .461 1
.4957
.5161
.5259
.5324
.5372
.5389
2000.0000
.3402
.4112
.4573
• ♦923
.5129
• 5228
• 5293
.5342
.5359
2*00.uoco
.336b
.4081
.4545
• 4897
.5104
.5203
• 5269
.5318
.5336
3500.0000
.334 1:
.4062
.452#
• 4664
.5092
.5192
.5257
.5306
.5328
TABLE 4-5 SUMMER
PROBABILITY OF CLOUD-FREE LINES-OF-SIGHT FROM THE SURFACE TO GIVEN HEIGHT. H.
HEIGHT H ,
(METERS)
10 UEt
20 DEG
30 DEG
40 OEG
50 DEG
60 OEG
70 OEG
60 UtG
90 Ut G
50*0000
,954b
.9555
• 9559
• 9564
.9569
.9569
• 9569
.9569
• 9669
100.0000
.9488
.9501
.9507
.9513
.9518
.9519
• 9519
.9519
.9619
200*0000
.9081
.9110
.'125
.9140
.9151
• 9153
.9155
.9155
.9156
300•O000
.8373
.8443
.8484
• 0521
.8546
• M552
• 6556
• 6560
• 0662
600*0000
.5240
.5593
.5809
• 5986
. .6094
• 6137
• 6169
• 61&9
• 6196
1000.9000
.3157
.3737
.4104
*4l«4
.4567
’ .464 j
t 4696
• 4 7 jO
.4/4 J
1500* uuoo
.2863
.3483
.3877
• 4106
.4368
• 4450
• 4507
• 4544
.4 656
2900*0000
.2815
.3443
.3842
.4154
• 4338
• 4421
• 44 1 8
• 4516
• 46 30
2500.9000
.2803
.3433
.3834
• 4147
.4332
• 4*15
.4473
.4510
• 4626
3500*0000
.2764
.340 3
• 380b
• 4126
.4313
.4397
• 4455
• 4493
.4510
TABLE 4-6 WINTER
PROBABILITY OF CLOUD-FREE LINES-OF-SIGHT FROM THE SURFACE TO GIVEN HEIGHT. H.
HEIGHT H
(METERS)
10 DEG
2* DEG
38 OEG
*8 UtG
' 50 OEG
*0 DEG
/0 OEG
00 OEG
90 OEG
50.8088
.9976
.**76
.**77
.**77
.9*77
.**77
.8*77
.99/7
• 99/0
180.0008
.*•72
.**73
• 9976
.**7*
.**75
.9*75
.9*75
.**75
.9*75
200.8000
.*•23
.**2*
.**27
• 992
.**30
.**30
• 9930
.9*30
.9*38
380.0880
.8703
.*721
.*733
.87*2
.*7*8
.9750
.*752
.*753
.9/53
•00.8080
.•••6
.•*78
.7176
.7332
.7*27
.7467
.7***
.751*
.7523
1080.0000
.3**3
.*18*
.*52*
.*85*
.50**
.5137
.5197
• 5240
.525/
1580.0000
.29*1
.3711
,*17*
.*5*9
.*7*8
.*837
.**82
• 4949
.***»,
2000.8000
.2*82
.370*
.*1*7 ,
.*52*
.*735
.*032
.*•9 7
• 4944
.***3
2500.0000
.2*68
.3**3
.*158
.*518
.*727
.*825
• 4069
.**37
• 4956
3508.0000
.2*5*
.3*81
. .*!♦*
.4585
.*718
.*815
• 4660
.**28
,***7
4-5
KSWC TR 78-143
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NSWC TR 78-143
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PROBABILITY OF A CLOUD-FREE LINE-OF SIGHT SLANT RANGE KM
TABLE 4—7 WINTER
PROBABILITY OF CLOUD-FREE LINE-OF—SIGHT (PCFLOS) VERSUS SLANT RANGE (SR) FOR
NINE ELEVATION ANGLES.
NSWC TR 78-143
SR » SLANT RANGE IN KILOFEET
MSWC TR 78-143
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NSWC TR 78-143
*IANT RANGE IN KILOFEET
LOCATION M WINTER
NSWCTR 78-143
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TARGET SLANT RANGE SR (KFTV
LOCATION M SPRING
NSWCTR 78-143
4-15
TARGET SLANT RANGE SR IKFT)
LOCATION M WINTER
NSWC TR 78-143
»
NSWC TR 78-143
CHAPTER 5
SUMMARY AND COMMENTS
In order to supply a comprehensive view of the .information contained in
Appendices A, B, and C, we have produced a new set of seven tables that summarize
our results and highlight the more essential points. The description of these
tables and the relevant comments are as follows:
All the locations are arranged in order of increasing latitude and listed
in each of the tables.
A. CLOUD STATISTICS
(i) Lower cloud base sta.istics - Tables 5-1, 5-2, and 5-3 give the
frequencies (%) for winter, spring, and summer respectively, for lower cloud bases,
between:
0 and 299m (base height cells 0, 1,2, and 3)
300 and 999m (base height cells 4 and 5)
1000 and 2500m (base height cells 7, 8, and 9)
above 2500m (base height cell .10)
Height cell 10, includes observations of no clouds besides observations of
clouds above 2500m. The five columns on the right hand side summarize the results
even further by considering only two layers: one below fSOOm and one above. The
frequency for no clouds, which is listed separately in these tables, was obtained
by taking, in obvious notation.
Freq. (no clouds) = Freq. (> 2500m or no clouds; cloud cover C = 0)
where the right hand side is the element (H,, C.), 1 = 10, j = 0
of the transposed of the lower base matrix C of J Appendix A- (H^ Q > 2500m).
Since
Freq. (<2500) + Freq. (>2500 or no clouds) = 100%
NSWC TR 78-143
and
Freq. (>2500 or no clouds) = Freq. (>2500) + Freq. (no clouds)
it fellows that
Freq. .(< 2500) = Freq. (all height) = 100% - Freq. (>2500 or no clouds; C * 0)
The. values taken by this quantity can be found in the column headed “All
Heights, Freq."
It is clear that most of the cloud bases are found in the 300-999m layer.
In fact, if y^e disregard the small number of cloud observations above 2500m, we
see that the frequencies for the three layers (0-299, 300-999 and 1000-1500m) are
out of proportion to their thickness. In the example of location M, at
0-299m, which comprises 12% of the 2500m layer, the observed freq. is 3.8%
-2
i .e., 1.3 10 /m-
300-999m, which comprises 28% of the 2500m layer, the observed freq. is 87.1%,
i.e., 1.3 10 Vm,
1000-2500m, which comprises 60% of the 2500m layer, the observed freq. Is 7.9%,
i.e., 5.0 10~^/m.
Figures D-l, 0-6, D-ll, and 0-16 of Appendix 0 provide a graphic Illustration
of the typical distribution of cloud bases. With respect to the peaks at 3000m,
the reader is referred to the comment in the last paragraph of Chapter 2.
the fact that most lower cloud bases lie in the 300-999m layer suggests the
possibility that air-to-air lines of sight might be adequate, for airborne surveil¬
lance within this layer.
Values for the lower cloud cover below and above 2500m were calculated from
the date In Appendix A as the sum over all cloud covers of the products of the.
relative frequency for a cloud cover times the decimal expression of the cloud
cover. For 2500 meters and less, all the values lie in the ranges (.4 to .8),
(.3 to .7), and (.2 to .7) for winter, spring, and summer respectively.
(11) Low cloud statistics . Tables 5-4, 5-5, and 5-6 summarize the data
for low cloud type (C^) statistics given in Appendix A.
The code for type clouds is included in Chapter 2.
\ ;
\ j
j
5-2
NSWC TR 78-143
For each location we assign two lines. The one above gives the frequencies
for the 300-999 meter layer (base he.ght cells 4 and 5) and the lower one the
frequencies for all heights (cells 0-10).
The most' frequently reported types for the three seasons studied, for all
heights and for the 300-999 meter layer, are 5.8 and 2. They correspond to strato-
cumulus not resulting from the spread of cumulus, cumulus of moderate or strong
vertical extent or towering cumulus and the combination of both.
B. PCFLOS (Ai, Hi) AND SLANT RANGE (SR)
In Table 5-7 we have arranged systematically the part of the results listed in
Appendix C that we consider summarizes more efficiently the main features of our
results for the PCFL0S (Ai, Hi) and the slant range. For each marine location, in
order of increasing latitude, we give PCFL0S (Ai, Hi) in winter, spring, and summer
for all the combinations of two elevation angles ana three heights.
The typical PCFL0S (Ai, Hi) curves illustrated in Figures D-2, D-3, D-4, etc.
in Appendix D show that this quantity decreases rather rapidly from its value of
unity at very close Tange to a point where it almost levels off and that, as
expected, the curves for 10 and 90 degrees enclosed those calculated for other
angles. For this reason we have chosen the points at 10 arid 90 degrees for the
elevation angle and 25, 450 (rather arbitrarily) and 2250 meters for the height to
characterize the set of PCFL0S (Ai, Hi) curves for each location and season.
The values of PCFL0S (Ai) of TAbl i C-46 are listed also under the heading
"All H." As expected, they are smaller than those of PCFL0S (Ai, Hi). While
PCFL0S (Ai) is associated with the probability of detecting a target against a deep
sky background, the difference between PCFL0S (Ai, Hi) and PCFL0S (Ai) (determined
with lower and total cloud cover respectively) involves a warmer cloud background
and consequently a weaker contrast. From the values on Table 5-7 we see that the
later circumstance obtains, at low altitudes, a substantial part of the time.
Since the elevation angle A and the height H determine the slant range, the
corresponding values of (SR) in kilofeet have been included in the headings of the
various columns.
With respect to the accuracy of the results, it must be understood that we
offer only rough estimates. The uncertainty in the data due to the measuring
procedures used in the estimation of the.cloud cover in eights, the size of the
cloud base height cells, and our use of the diurmal universal matrix of Lund and
Shanklin are among other factors detrimental to the accuracy.
Here we wish tc point out that the values of PCFL0S (A- .H.) implicitly
contain the definition of LOS of Lund and Shanklin and that^htlir definition is
dependent on their technique (instrumentation, photographic processing, etc.).
In essence, it consists in the examination of high contrast photographs through
holes in a template, corresponding to fixed elevation angles, for the presence
of clouds. We refer the reader to their 1972 paper for a complete description.
Lund, I.A. and Shanklin, M.D. 1972: Photogrammetically Determined Cloud-Free
Lines of Sight Through the Atmosphere. J. Appl. Meteor. 11, 773-782.
A
‘ NSWC TR 78-143
Furthermore, while it is very fortunate that the weather data was collected and
made available to us, it must be realized that it was not taken with the intended
purpose of this study.
Early operational versions of the optical system that this report tends to
foster would supply a more accurate method to obtain and accumulate data for the
determination of the probability of a cloud-free line of sight.
With due regard for the previous comnents we consider that, at this stage,
our results provide an adequate CFLOS basis for the preliminary planning of
atmospheric optical systems.
NSWC TR 78-143
TABLE 5-1
SUMMARY OF STATISTICS FOR LOWER CLOUD CASES BELON 2500 METERS
WINTER
1
I
Lower
Cloud
Base
^ 2500 Met
£TS_
>2500
M or
No
Clouds
^ 2500
Meters
All H
!
0-299M
0-1-2-3
300-999M
4-5
1000-2500M
6-7-8
eights
No
jClouds
!
f
In
_Lat.
Long.
Freq.
Freq.
Freq.
Freq.
Freq.
Cover
Freq.
Cover
j Freq-
9/10 17N
107E
22.6
66.5
4.6
6.4
93.6
0.72
94.4
0.72
1 5.6
T
29N
135E
0.2
68.2
24.5
7.2
92.8
0.42
92.7
0.42
; 7.3|
N
30N
140W
2.5
91.2
3.7
2.7
97.3
0.65
98.1
0.65
1
1.9
V
31N
164E
5.3
89.7
2.6
2.3
97.7
0.59
98.8
0.60
1.2
1/2
(33N
34E
15.7
52.4
7.6
24.1
,75.8
0.36
79.6
038
20.4
f 36N
OE
.
1 '•
D
44N
41W
6.6
88.6
2.2
2.6
97.4
0.67
98.5
0.67
1.5
K
45N
16W
10.6
'
69.8
14.7
4.9
95.1
0.67
97.1
0.68
2.9
H
48 N
36W
4.0
82.7
4.2
9.1
90.0
0.61
92.3
0.62
6.7
P
50N
145W
23.8
72.3
. 1.2
2.8
97.3.
0.74
98.6
0.75
1.4
C
52N
35W
15.2
77.7
3.3
3.7
96.2
0.68
98.7
1
0.70
1.3
J
53N
19W
10.6
75.2
13.1
1.7
98.3
0;68
98.6
0.68;
1
1.4
B
56N
.
51W
17.3
80.1
1.5 !
1.2
98.8
0.81
99.2
0.81
0.8
I
60N
19W
16.8
70.8
11.0 i
1.3
98.6
0.68
99.4
0.68
0.6
A
1
62N
33W
15.1
72.3
n.o !
1.6
98.4
0.73
98.9
0.74
1.1
M
66N
2E
3.8
87.1
7.9
1.2
'98.8
0.72
,99.0
0.72
1.0
NSWC TR 78-143
TABLE 5-2
SUMMARY CF STATISTICS FOR LOWER CLOUD BASES BELOW 2500 METERS
SPRING
9/10
17N
107E
T
29N
135E
N
i
30N
140W
i
V
31N
164E
1/2
33N
34 E
i
36N
OE
0 .
44N
41W.
K
45N
16W
H
48N
36W
P
50N
145W
C
52N
35W
J
53N
19W
B
56N
51W
1
60N
19W
A
62N
33W
M
66N
2E
i
♦
16.8
61.1
8.1
2.1
70.8
16.8
1.3
90.1
5.2
11.8
78.1
5.2
13.7
37.1
8.1
8.4
80.0
4.4
12.4
72.1
10.4
3.2
79.7
7.0
22.6
70.7
2.3
21.2
65.4
5.9
14.5
68.8
14.2
21.5
72.1
2.4
12.7
76.2
9.6
20.8
66.3
8.9
7.1
73.8
15.2
t
24.1
75.9
0.46
10.3
89.7
0.36
2.9
97.2.
0.64
5.0
95.0
0.63
37.6
58.9
0.28
7.3
92.7
0.61
5.2
94.8.
0.62
10.2
89.8
0.57
4.5
95.7
0.72
7.5
92.5
0.69
2.6
97.4
C.63
4.0
96.0
0.78
1.5
98.5
0.69
4.0
96.0
0.72
3.9
96.1
0.68
I
82.6
0.49
17.4
89.9
0.36
10.1
97.9
0.64
2.1
97.2
0.65
2.8
62.4
0.30
37.6
96.8
0.64
3.2
96.0
0.62
4.0
91.7
.0.58
8.3
96.3
0.72
3.7
97.0
0.71
3.0
98.1
0.63
1.9
98.0
0.79 .
2.0
99.2
0.69
0.8
97.5
0.73
2.5
96.2
0.68
3.8
5-6
NSWC TR 78-143
TABLE 5-3
SUMMARY OF STATISTICS FOR LOWER CLOUD BASES BELOW 2500 METERS
SUMMER
Lower
Cloud
Base
-f --
"1-
00
3E I
CTi CM
OS 1
CM f—
1 1
O O
2500 Meters
t —
£ §
ex' in
I OS CM
OS 1 CO
1 O 1
o in on
O 1 O t
OO Tf r~KO
>2500
M or
No
Clouds
>2500
deters
All Heights
No
Clouds
Loc.
I
| Lat.
Long.
Freq.
Freq.
Freq.
Freq.
Freq.
Cover
Freq.
Cover
Freq.
9/10
17N
1Q7E
3.7
61.5
, r J
26.7
73.6
0.31
87.3
0.36
12.7
T
29N .
. 135E
13.8
45.8
31
6.8
93.2
0.31
93.3
0.32
6.7
N
30N
140W
0.7
96.3
2.2
0.8
99.2
0.63
99.5
0.63
0.5
V
31N
164E
6.4
83.8
3.2
6.5
93.5
0.49
96.0
0.50
4.0
1/2
J33N
34E
11.7
28.2
4.7
55.4
44.6
0.16
47.5
0.19
52.5
(36N
OE
D
44N
41W
15.3
72.3
2.9
9.6
90.4
0.59
95.1
0.62
4.9
K
45N
16W
, 10.7
73.1 .
11.7
4.6
95.5
0.63
97.4
0.64
2.6
H
48N
36W
1.0
76.3
4.4
18.3
81.7
0.34
85.2
0.35
14.8
P
50N
145W
35.8
60.0
2.6
1.6
98.4
0.84
0.99
0.85
1.0
C
52N
35W
34.0
57.4
2.3
6.4
93.7
0.77
97.8
0.8C
2.2
J
53N .
19W
22,1
65.7
10.2
2.1
97.9
0.73
98.2
0.74
1.2
B
56N
51W
33.1
50.2
4.0
12.0
88.0
0.71
94.8
0.75
5-2,
I
60N
19W
22.9
74.0
4.3
0.9
99.2
0.72
99.6
0.72
0.4
A
62N
33W
23.0
66.2
8.1
2.6
97.4
0.77
S3.5
0.77
1.5 ,
,M
66N
2E
18.4
71.7
6.4
3.4
96.6
0.74
97.2
0.74
2.8
NSWC TR 78-143
TABLE 5-4
SUMMARY OF LOW CLOUD (C,_) STATISTICS
WINTER
Loc.
LOW CLOUD TYPE (Base height cells
4 and
5/all
base height cells)
0
1
2
3
4
5
6
7
8
9
Fog
9/10
0.2
12.1
8.1
0.9
3.6
16.6
5.0
•4.6
15.3
0.1
8.0
13.2
10.0
1 .1
, 4.1
22.9
12.1
8.7
19.2
0.1
0.6
T
0.2
20.3
17.2
3.1
7.0
5.3
1 .1
8.0
4.5
1 .6
•
7.5
28.5
18.6
3.1
12.2
13.3
1 .1
8.3
5.9
1 .6
0.0
N
0.4
7.3
14.4
1 .0
2.3
22.8
1 .3
3.1
36.1
0.59
' •
3.6
7.4
16.6
1 .0
2.6
25.5
1 .7
4.1
36.5
0.6
0.3
V
0.5
10.9
28.0
5.0
2.8
9.6
0.7
8.0
23.2
1 .0
•
3.4
11 .2
28.5
5.0
, 3.2
11 .3
1 .1
11.6
23.5
1 .3
0.0
1/2
0.8
9.5
14.6
6.0
4.5
8.7
1 .3
3.4
2.4
1 .1
27.5
1?.5
21.0
8.3
6.6
11 .7
'• 2.1
4.9
3.4
2.1
0.2
0
0.3
7.1
29.4
4.2
3.4
18.1
0.7
10.7
13.2
0.6
3.4
7.2
29.9
4.7
3.4
19.7
0.8
15.0
14.9
0.6
.0.4
K
0.0
1 .8
5.9
1 .6
0.4
18.8
2.5
4.7
26 .6
7.5
5.1
2.0
6.2
1 .8
0.6
33.8
6.4
8.5
27 .4
7.9
0.3
H
0.3
13.4
13.6
2.4
3.9
22.9
1 .0
7.6
16.6
0.9
. 10.7
13.7
14 3
2.6
4.3
25.0
1 .2
9.9
16.9
0.9
0.5
P .
1.1
1 .6
10.8
3.7
11 .2
23.5
4.3
4.0
8.5
3.6
4.9
1 .6
11 .1
3.8
11.3
25:6
12.8
11 .3
8.9
3 .6
5.0 ;
C
0.5
4.4
23.9
2.0
1 .4,
20.8
2.0
9.4
12.7
0.6
i
i
i
4.8
4.7
24.1
2.2
1 .7
23.2
5.4
16.0
12.9
0.6
4.2 ;
J ,
0.0
1.1
7.1
4.4
0.5
l c .9
1 .5
4.2
22.1
18.5
1 .9
1.2
7.9
4.5
0.6
28.7
3.2
9.1
23.1
19.3
0.5
B
0.5
2.9
27 .0
1 .3
1 .8
20.1
0.5
8.3
16.9
0.2
■_
2.1
3.0
28.2
1 .4
2.0
21.6
1 .3
17.3
18.0
0.2
4.8
I
0.1
2.2
7.4
5.0
0.3
14.8
1 .0
2.1
23.5
10.4
1 .3
2.2
7.7
5.C
0.4
29.4
2.2
8.7
28.9
13.3
0.2
A
0.2
1 .4
4.5
4.1
0.6
16.3
1 .5
5.4
21.9
16 .4
2.0
1 .4
4.8
4.6
0.6
29.1
3.7
12.6
23.1
17.7
0.3
M
0.0
0.7
3.7
1 .2
0.2
12.2
3.9
9.8
8.3
47.0
1.4
1 .1
4.7
1 .3
0.2
15.7
5.3
. 10.9 .
.. 3.5,
43.3 ,
..0.5 -
5-8
NS'rf'C TR 7S-143
TABLE 5-5
SUMMARY OF LOW CLOUD (C, ) STATISTICS
SPRING
LOW
CLOUD
TYPE (3ase Heignt
Tim
4 and
5/a 11
base helg.nt cells)
0
1
2
3
4
5
6
7
3
9
Fog
9/10
0.1
9.7
3.8
2.2
3.5
12.7
4.5
1 .6
6.2
1 .9
26.9
11 .9
10.3
2.5
4.3
19.1
0 .5
3.5
9.5
2.2
1 .1
T
0.1
23.7
14.7
3.7
1 .6
5 .5
2.6
13.8
4.4
0.7
-
10.7
30.1
15.1
3.7
3.7 ,
12.3
3.6
14.5
5.1
0.7
0.9
N
0.4
9.0
13.0
1.4
2.3
18.3
0.2
2.7
42.2
C.2
-
« 3.6
9.0
13.0
1.4
2.4
24.1
' 0.4
3.7
42.3
0.2
0.0
V
0.6
10.2
15.3
0.7
4.2
16.1
2.2
8.1
20.1
0.2
-
6.1
10.3
16.0
0.7
4.5
20.1
5.8
13.8
20.5
C.2
1.9
1/2
0.9
7.4
11.3
2.4
2.3
4.4 '
2.3
2.4
2.0
0.3
-
46.1
11.2
13.9
4.0
4.0
7.4
3.8
5.4
3.3
1.1
0.1
0
0.6
11.6
16.1
1.5
2.6
18.5
1.1
11.1
16.0
0.3
•
9.1
11.8
16.2
1.6
2.8
21.3
2.5
16.2
16.5
0.9
1.2
K
0.2
4.9
7.2
0.9
0.4
17.4
2.5
4.8
25.7
8.3
•
6.5
5.0
7.4
0.3
0.4
26.8
7,0
7.3
27.0
8.6
3.2
H
0.5
10.9
22.1
2.9*
6.1
19.8
1.1
4.6
10>
1.3
-
12.2
11.9
23.4
3.1
6.7
22.0
1.4
6.5
n.o
1.3
0.5
P
0.6
5.0
8.6
1.5
3.6
23.5
3.5
3.4
9.4
1.3
-
6.3
5.1
3.6
1.6
8.8
30.9
10.2
10.9
9.7
1.3
6.1
C
0.6
5.8
12.8
1.7
1.1
17.6
2.3
9.0
14.4
0.2
-
10.6
6.2
13.0
1.7
1.3
20.8
7.7
14.7
14.7
0.2
9.2
J
0.0
2.3
5.6
3.1
0.9
11.9
0.9
3.2
23.9
11.2
•
2.7
2.6
7.0
3.2
1.2
25.4
4.7
, 8.7 '
31.2
11.9
1.4
B
0.5
4.6
16.3
0.2
2.0
26.0
1.9
7.5
12.5
0.1
-
5.5
4,7
17.3
0.2
2.2
28.3
5.8
16.5
13.8
0.1-
5.6
I
0.0
2.6
5.7
4.3
l.i
14.5
0.8
4.1
27.9
14.2
•
1.7
2.6
5.9
. 4.4
1.4
26.4
2.2
10.5
28.9
15.7
0.3
A
0.1
2.2
4.2
3.2
0.8 ,
17.6
1.4
3.4
24.2
9.2
5.6
2.8
4.5
3.5
0.9
23.3
6.0
13.1
25.0
10.2
1.4
M
0.1
0.6
3.3
0.3
C.O
10.5
6.5
3.1
7.5
36.7
•
5.3
1.5
4.6
0.9
0.0
16.6
10.3
9.6 •
3.5
41.1
1.6
' 1
NSWC TR 73-143
TABLE 5-6
SUMMARY OF LOW CLOUD (C L ) STATISTICS
SUMMER
Loc. LOW CLOUD TYPE (Base Height Cells 4 and 5/all base height cells)
0 1 2 3 4 5 6 7 3 9 Fog
9/10
0.1
12.1
20.3
5.6
2.4
2.8
1.9
1.9
3.8
10.2
-
29.6
13.0
22.7
6.3
3.2
4.6
2.3
2.6
5.0
10.6
0.1
T
0.0
i 2.8
33.5
12.3
0.3
1.1
3.0
4.5
1.0
8.7
-
6.3
13.0
33.7
12.9
1 .0
1.7
3.6
4.7
1.1
8.7
12.3
N
0.0
10.3
17.3
1.9
3.2
12.5
0.4
0.7
48.8
0.3
-
0.9
10.8
17.9
1 .9
3.2
14.5
0.6
0.9
48.9
0.3
0.0
V
0.4
14.3
23.8
2.5
1 .8
.12.4
3.5
3.9
20.0
1.2
■ -
5.0
14.3
24.0
2,6
2.0
14.4
6.2
5.6
20.2
1.2
1 .5
1/2
1.0
10.3
6.6
1.3
2.1
2.9
1.8
0.6
1.1
0.5
-
57.8
17.2
9.7
1 .6
2.4
4.7
3.2
1.1
1.6
0.6
0.2
D
0.2
13.9
9.2
1.6
3.0
24.4
3.0
4.8
11.7
0.3
-
10.9
14.2
9.5
1.7
3.3
26.6
7.7
8.1
12.3
C.3
5.3
K
0.1
4.1
8.4
0.4
0.9
23.2
2.2
3.2
26.7
3.9
-
5.2
4.3
9.2
0.5
1.2
33.2
7.5
6.4
28.1
4.0
0.2
H
0.1
18.4
28.6
7.0
3.1
3.2
1.4
1.8
4.3
3.4
-
20.2
18.7
23.3
7.0
3.4
10.2
1.6
2.1
4.4
3.5
0.2
P
0.5
2.0
.1.1
0.2
4.5
31.1
3.7
1.6
12.9
0.4
-
3.4
2.0
3.3
■ 0.4
4.3
34.8
19.1
9.6
14.0
0.4
8.3
C
0.2
2.1
5.5
0.6
0.9
26.1
3.3
4.3
13.2
0.0
-
7.4
3.4
5.7
0.6
0,9
28.4
11.2
11.0
13.9
.0.0
17.4
J
0.0
2.0
4.3
1 .5
0.7
15.6
1.4
2.8
33.0
4.3
-
2.4
2.2
4.7
1.6
0.9
27.2
8.3 ,
11.1
34.7 ,
4.5
2.5
B
0.7
2.3
2.7
0.2
0.3
27.3
3.9
5.0
7.5
0.0
-
14.3
3.0
2.7
0.2
0.8
31.1
14.4
12.5
3.7
0.0
12.3
I
0.0
3.2
3.2
1.6
2.0
15.7
1.0
3.2
33,4
8.8
,0.9
3.3
3.3
1.9
2.0
26.2
4.9
13.0
34.8
9.0
0.5
A
0.0
1.9
1.8
0.6
0.4
23.6
2.0
3.3
27.0
5.7
-
, 3.3
2.0,
1 .9
0.6
0.6
34.9
10.1
12.0
28.0
5.8
0.9
M
0.2
0.4
2.4
1 .0
0.3
15.3
9.9
4.7
11.1
26.1
-
4.7
0.7
2.9
1 .1
0.3
19.6
18.0
7.7
12.1
27.9
4.9
5-IO
NSWC TR 78-143
TABLE 5-7
SUMMARV FOR PCFLOS (A., H ). LOCAL SEASONAL VARIATION
1-
1 ■
Loc.
’
Lat
Long, j
!
! Season
1-
lo
Degrees
90 Degrees
H (meters)
H (meters)
25
j 450
! 2250
All
Heights*
L 25 1
! 450 ' 1
| 2250
AH *
Heights
Slant Range (KF)
Slant Range (KF) i
0.9
! 11.3
j 47.0
0.16 |
2.0 |
8.2 i
S/10
17N '
WI
0.99
0.46
0.30
0.24
0 99
0.54
0.43
0.37
107E
SF i
0.99
0.67
0.54
0.36
0.99
0.74
0.66
0.52
SU
l .00
0.85
0.69
0.28
1 .00
0.92
0.82
0.45
-
29N
WI
1 .00
0.96
0.57
0.36
1 .00
0.98
0.76
0.52
135E
SP 1
3.99
0.89
0.63
0.30
0.99
0.93
0.79
0.45
SU 1
0.96
0.81
0.67
0.37
0.93
0.89
0.83
0.54
N
3 ON
WI 1.00
0.84
0.36
0.26
1 .30
0.88
0.54
0.42
140W
SP 1.00
0.38
0.37
0.26
1.00
0.91
0.54
0.42
SU 1.00
•0.91
0.37
0.33
1 .00
0.93
0.55
0.51
V
31 N
WI
1 .00
0.73
0.41
0:28
1 .00
0.81
0.60
0.44
1 64 E
SP
0.98
0.69
0.37
0.21
0.93
0.76
0.54
0.35
SU
0.99
0.77
0.50
0.21
0.99
0.83
0.67
0.44
| 33N
WI
1 .00
0.75
0.63
0.51
1 .00
0.84
0.77
0.68
1/2
I 34P
SP
1 .00
0.80
0.72
0.60
1 .00
0.87
0.83
0.74
j 30N
SU
1 .DC
0.87
0.81
0.74
1 .OC
0.93
0.90
0.35
OE
•
0
44N
WI
1 .00
0.63
0.34
0.22
1 .00
0.73
0.53
0.37
41W
SP
0.99
0.66
0.39
0.21
0.99
0.75
0.56
0.35
SU
0.95
0.61
0.41
0.26
0.95
0.68
0.56
0.41
K
45N
WI
1 .00
0.69
0.34
0.26
1 .00
0.76
0.51
0.42
16W
SP
0.93
0.67
0.39
0.29
0.98
0.74
0.55
0.46
SU
1 .00
0.69
0.37
0.29
1 .00
0.75
0.54
0.45
H
48N
WI
1 .00
0.72
0.40
0.24 .
1 .00
0.73
0.57
0.38
.
36W
SP
1 .00
0.77
0.43
0.27
1 .00
0.83
0.59
0.41
SU
i .00
0.«5
0.65
0.40
1 .00
0.91
0..30
0.58
T
5CV
w
C.95
0.39
0.28
0.21
0.95
0.51
0.43
0.35
M5W
. S r
C. 94
'0.44
0.29
0,21
9.94
0.55
0.44
0.34
SU
0.92
0.31
0.18
0.11
0.92
0.40
0.29
0.21
c
52N
WI
0.96
0.55
0.33
0.21
0.96
0.65
0.49
0.35
35W
SP
0.91
0.5/
0.33
0.17
0.92
0.65
0.47
0.30
_ _
SU
0.83
0.41
0.24
0.13
0.84
0.49
0.36
0.23
(continued next page)
'AH Heights" r<*l t.o calculations done with the total i loud cover
(unmodified Lund and ShanHin's method)
5-11
NSWC TR 78-143
TABLE 5-7 (continued)
SUMMARY FOR PCFLOS (A., H.). LOCAL SEASONAL VARIATION
*
Loc.
Lat
Long.
Season
10 Degrees
90 Degrees
H (meters)
25
4 50
2250
Eflffllill
25
±450
2250
All *
Heights
■BBnasaiOHi
0.9
11.3
47.0
0.16
2.Q
8.2
: j
53N
WI
1.00
0.64
0.33
0.25
1 .00
0.73
0.51
0.42
19U
SP
0.99
0.66
0.38
0.27
0.93
0.74
0.56
0.44
SU
0.98
0.53
0.28
0.20
0.98'
0.62
0.43
0.33
B
56N
WI
0.95
0.43
0.21
0.14
0.46
0.53
0.26
51W
SP
0.95
0.47
0.24
0.14
0.95
0.56
0.38
0.26
SU
0.88
0.43
0.30
0.16.
0.39
0.51
0.41
0.27
i
60N
WI
1.00
0.54
0.33
0.24
1.00
0.66
0.52
0.41
19W
SP
1 .00
0.55
0.32
0.22
1.00
0.66
0.50
0.37 .
SU
1.00
0.47
0.29
0.19
1 .00
0.59
0.46
0.33
A
62u
WI
1 .00
0.51
0.28
0.21
1 .00
0.62
0.45
0.35
33W
SP
0.99
0.47
C.25
0.19
0.99
0.59
0.45
0.33
SU
0.99
0.47
0.25
0.17
0.99
0.56
0.40
0.30
M
66N
WI
1 .00
0.67
0.30
0.23
1 .00
0.75
0.50
0.39
2E
SP
0.99
0.74
0.34
0.24 .
0.99
0.80
0.53
0.40
SU
0.95
0.52
0.28
0.19
0.96
0.62
0.34 .
"All Heights" relates to calculations done with the total cloud cover
(unmodified Lund and Shanklin's method)
BIBLIOGRAPHY
Katz, B., Hepfe**, K., and McMeekin, N.E., "Electro-optical Meteorological
Sensitivity Study," NSWC TR 79-67, Apr 1979
Lund, I.A., and Shanklin, M.D., 1972: "Photogrammetrically Determined Cloud-Free
Lines of Sight through the Atmosphere," J. Appl. Meteor. 1^, 773-782.
Lund, I.A., and Shanklin, M.D., 1973: "Universal Methods for Estimating Prob¬
abilities of Cloud-free Lines of Sight through the Atmosphere." J. Appl. Meteor.
12, 1222-1228.
“Marine Surface Observations." Tape Deck TDF-11, WMO
Rapp, R.R., and Schutz. C.. "Cloud-free Line of Sight Calculations," Rand Corpo.,
Sep 1972.
"Surface Observations," Federal Meteorological Handbook No. 1, First and Second
Editions, Dept, of Commerce.,
"Surface Observations." NAVAIR 50-1D-1 (FMH-lB)l Jan 1980, Dept, of the Navy
NSWC TR 78-143
GLOSSARY AND NOTATION
LOS Line of sight
PCFLOS Probability of a cloud-free line of sight
A. L.
A. 1 value of the elevation angle A
f h
i tn value of the cloud cover C
H. Midrange of the low cloud base-height recording cell
J
H c Sensor height
(SR)j Slant range to midrange of the jth height cell
L(A-, H.) (A., H-) matrix element of the real weather matrix
i J J
U(A-, H.) (A., H.) matrix element of Lund and Shanklin's universal matrix
J
P(Cj) Probability of the cloud cover taking the value C^
PINT (A., H.) Contribution to PCFLOS (A., H.) due to the ^ase height, cell
J J
with midrange at Hj
PCFLOS (A r Hj) PCFLOS at angle A. and height Hj
PCFLOS (A^,(SR)j) PCFLOS at angle A. and slant range to height Hj
PCFLOS (A.) PCFLOS at angle A^ through all clouds
NSWC TR 78-143
APPENDIX A
STATISTICS OF CLOUDS BELOW 2500 METERS
A—1
TABLE A—1A WINTER LOCATION 1
FREQUENCIES FOR LOWER CLOUD BASE HEIGHT
TRANSPOSED OF THE LOWER CLOUD COVER MATRIX L (C, H)
(CLOUD COVER IN EIGHTS)
NSWC TR 78-143
10
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TABLE A-2A SPRING LOCATION 1
FREQUENCIES FOR LOWER CLOUD BASE HEIGHT
TRANSPOSED OF THE LOWER CLOUD COVER MATRIX L (C, H)
(CLOUD COVER IN EIGHTS)
NSWC TR 78-143
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NSWC TR 78-143
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NSWC TR 78-143
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A—5
(PER CENT)
TABLE A—5A SPRING LOCATION 10
FREQUENCIES FOR LOWER CLOUD BASE HEIGHT
TRANSPOSED OF THE LOWER CLOUD COVER MATRIX L (C, H)
(CLOUD COVER IN EIGHTS!
A—6
PER CENT)
~ FREQUENCIES FOR LOWER CLOUD BASE HEIGHT LOCATION 10
TRANSPOSED OF THE LOWER CLOUD COVER MATRIX L (C, HI
(CLOUD COVER IN EIGHTS)
"jimiwyy mi ^ d0US0^.
NSWC TR 78-143
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TABLE A—7A WINTER LOCATION A
-FREQUENCIES FOR LOWER CLOUD BASE HEIGHT
TRANSPOSED OF THE LOWER CLOUD COVER MATRIX L <C, HI
(CLOUr COVER IN EIGHTS)
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FREQUENCIES FOR LOWER CLOUO BASE HEIGHT LOCATION A
TRANSPOSED OF THE LOWER CLOUD COVER MATRIX L (C H)
(CLOUO COVER IN EIGHTS)
NSWC TR 78-143
A —10
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TABLE A-10A WINTER LOCATION B
FREQUENCIES FOR LOWER CLOUD BASE HEIGHT
TRANSPOSED OF THE LOWER CLOUO COVER MATRIX L (C. Hi
(CLOUD COVER IN EIGHTS)
(PE* CENT)
TABLE A-11A SPRING LOCATION B
FREQUENCIES FOR LOWER CLOUO BASE HEIGHT
TRANSPOSED OF THE LOWER CLOUD COVER MATRIX L (C, H)
(CLOUD COVER IN EIGHTS)
NSWC TR 78-143
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(CLOUD COVER IN EIGHTS)
(PER CENT)
TABLE A-13A WINTER LOCATION C
FREQUENCIES FOR LOWER CLOUD BASE HEIGHT
TRANSPOSED OF THE LOWER CLOUD COVER MATRIX L (C, H)
(CLOUD COVER IN EIGHTS)
NSWC TR 78-143
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FREQUENCIES FOR LOWER CLOUD BASE HEIGHT
; TRANSPOSED OF THE LOWER CLOUO COVER MATRIX L (C, HI
(CLOUD COVER IN EIGHTS)
NSWC TR 78-143
A—15
<PER CENT)-
TABLE A-1SA SUMMER LOCATION C
FREQUENCIES FOR LOWER CLOUD BASE HEIGHT
TRANSPOSED OF THE LOWER CLOUD COVER MATRIX L (C. H)
(CLOUD COVER IN EIGHTS)
NSWC TR 78-143
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TABLE A-16A WINTER
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NSWC TR 78-143
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TABLE A-18A SUMMER LOCATION D
FREQUENCIES FOR LOWER CLOUD BASE HEIGHT
TRANSPOSED OF THE LOWER CLOUD COVER MATRIX L (C, H)
(CLOUD COVER IN EIGHTS)
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TASLE A-20A SPRING LOCATION H
FREQUENCIES FOR LOWER CLOUD BASE HEIGHT
TRANSPOSED OF THE LOWER CLOUD COVER MATRIX L (C, H)
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NSWC TR 78-143
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FREQUENCIES FOR LOWER CLOUO BASE HEIGHT
TRANSPOSED OF THE LOWER CLOUD COVER MATRIX L (C, H)
(CLOUD COVER IN EIGHTS)
NSWC TR 78-143
A—24
LOW CLOUDS
(PER CENT)
TABLE A—24A SJMMER
FREQUENCIES FOR LOWER CLOUD BASE HEIGHT
TRANSPOSED OF THE LOWER CLOUO COVER MATRIX L (C, HI
(CLOUD COVER IN EIGHTS)
NSWC TR 78-143
tow CLOUDS
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TABLEA-25A WINTER
FREQUENCIES FOR LOWER CLOUD BASE HEIGHT
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(CLOUD COVER IN EIGHTS)
NSWC TR 78-143
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FREQUENCIES FOR LOWER CLOUD BASE HEIGHT
TRANSPOSED OF THE LOWER CLOUD COVER MATRIX L (C H)
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NSWC TR 78-143
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TABLE A-35A SPRING LOCATION N
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TABLE A-39A SUMMER
FREQUENCIES FOR LOWER CLOUD BASE HEIGHT
TRANSPOSED OF THE LOWER CLOUD COVER MATRIX L (C, H)
(CLOUD COVER IN EIGHTS)
NSWC TR 78-143
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A—40
TABLE A-40A WINTER LOCATION T
FREQUENCIES FOR LOWER CLOUD BASE HEIGHT
TRANSPOSED OF THE LOWER CLOUD COVER MATRIX L 1C, H)
(CLOUD COVER JN EIGHTS!
NSVVC TR 78-143
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A—41
TABLE A-41A SPRING LOCATION T
FREQUENCIES FOR LOWER CLOUD BASE HEIGHT
TRANSPOSED OF THE LOWER CLOUD COVER MATRIX L (C, HI
(CLOUD COVER IN EIGHTS)
NSWC TR 78-143
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iPER CENT)
TABLE A-42A SUMMER LOCATION T
FREQUENCIES FOR LOWER CLOUD BASE HEIGHT
TRANSPOSED OF THE LOWER CLOUD COVER MATRIX L (C, HI
(CLOUD COVER IN EIGHTS!
NSWC TR 78-143
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(PER CENT)-
TABLE A-43A WINTER ,
FREQUENCIES FOR LOWER CLOUD BASE HEIGHT LOCATION V
TRANSPOSED OF THE LOWER CLOUD COVER MATRIX L (C H)
(CLOUD COVER IN EIGHTS) '
NSWC TR 78-143
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A-45
ALL
LOW CLOUDS 6.4 Ifi.J lb.0 .2 A.S
(PERCENT)
TABLE A—45A SUMMER LOCATION V
FREQUENCIES FOR LOWER CLOUD BASE HEIGHT
TRANSPOSED OF THE LOWER CLOUD COVER MATRIX L (C, H)
(CLOUD COVER IN EIGHTS)
NSWC TR 78-143
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(PERCENT)
NSWC TR 78-143
APPENDIX B
PINT (A,H) CONTRIBUTIONS TO PCFLOS (Aj, Mj> DUE TO LOWER
CLOUDS WITH BASE AT H.
B-1
NSWC TR 73-143
PINT (A,H) TA3LE B1 SPRING, LOCATION 2
CONTRIBUTION TO PCFLOS (A,H) DUE TO COWER CLOUDS WITH e LSE HEIGHT AT H,
H(METERS)
10 Ofco
20 OEG
JU UfcG
40 UtG
*0 0 £G
6 0 utG
70 UtG
otl UtG
90 UtG
23.0000
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.9989
• 'i'+'iO
.9991
.9991
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73.U000
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.9978
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.998*
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1 * 0.0000
.9»39
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.9877
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•
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• 9099
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.9271
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.9*17
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.9606
• 9000
.98*3
TABLE B2
SUMMER
CONTRIBUTION TO PCFLOS
(A.H) DUE TO LOWER CLOUDS WITH BASE HEIGHT
AT H.
'
H(METERS)
10 Oto
20 OEG
Ju utG
*0 Uii
*0 Oto
60 uEG
70 UtG
00 UtG
90 UtG
2S.O000
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.9996
.99 9 7
. 9996
.9998
.9998
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73.U000
.9963
.99*7
.9970
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. 9 972
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• •*9
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1 * 11.0000
.993*
.99*9
.9961
,9967
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.9972
.9973
• *9 7 4
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2*0 • u 0 00
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. 9b92
.9717
.9733
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.9269
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. 969*
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12 * 0.0000
,«b96
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.9931
• 99j*
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3000.0000
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.'9867
• 9ob9
. .yo/o
.9923
TABLE B3
WINTER
CONTRIBUTION TO PCFLOS (AjHI DUE TO
LOWER CLOUDS WITH BASE HEIGHT
AT H.
himetersi
10 OEG
20 UEG
30 UtG
*0 UtG
*0 DtG
60 OEG
70 OtG
80 UtG
90 UtG
23.0090
.9997
.'9998
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.9999
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. 9990
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• 99V9
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73.0000 ,
.9972
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.9976
.9977
.9978
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.9979
1 * 0.0000
.9792
.9816
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’.96*2
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i 963 1
.9633
• 98**
230.0000
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• 961b
.9629
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. 833*
. 6*60
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.8876
. 89 1 o
.6929
.8944
• a9*l
800.0000
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12 *0.0000
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.9819
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.9863
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17*0.0000
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.9939
. 99* M
. 993*
.99*6 ‘
.99*9 •
.9960
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22 SO.O000
.9933
. 99*2
. 99* 7
.99*2
.993*
.99**
. .9936
.y9a6
.99*6
3000.0000
• 9’80
.9827
• 96* 7
• 98 7a
.986*
.9888
.9889
• 909|
.9912
NSWC TR 78-143
PINT (A,H) TABLE B4 SPRING LOCATION 8
CONTRIBUTION TO PCFLOS (A.HI DUE TO LOWER CLOUDS ViTH BASE HEIGHT AT H.
H(METERS)
10 0EG
?0 HE 6
30 0€6
40 UtG
50 DEG
bO DEG
70 CEG
80 0EG
90 DE6
25.U000
.<5H9S
.9898
• 98*9
.9900
. 9902
.4402
.9902
.9902
.9902
75.0000
.999?
.999?
.9993
.9993
.*991
.4993
.9993
.9993
.9993
J 50.0000
• 97Sfi '
.9771
.9 7nl
• 9789
.974*
.9796
.9797
.9798
.9799
260.0000
.9047
.9108
.9148
.9177
.4147
.920*
.9209
.9213
.9214
450.0000
• 00 35
. 8? 18
.8346
• 64?H
.0*01
..506
.8518
.8531
• 8536
800.0000
• 904b
.9168
• 9?87
.9312
.9345
.936*
.9373
.9382
.9386
1260.U000
.9840
.988?
.98 79
.9889
.9045
.9898
.9900
.9902'
.9902
'1750.0000
.9871
.9888
.9900
.9908
.9913
.9916
.9917
.9918
.9919
2260.0000
.9889
.9905
.9917
• 9924
.9929
.9931
.9932
.9934
.9934
3000.0000
• 96<?e>
.9691
• 97 ?0
.9765
.4779
.9786
.9790
.9794
.9813
TABLE B5 SUMMER
CONTRIBUTION TO PCFLOS (A.HI DUE TO LOWER CLOUDS WITH BASE HEIGHT AT H.
H(METERS)
10 Of G
?n f>EG *
JO UtG
4 0 UtG
50 Dt6
60 DEG
70 DEG
80 DEG
90 DEG
25.0000
.9 995
.9995
.9995
• 9*95
.4445
.9995
.9995
.9995
.9995
75.0000
.9997
.9998
• *998
.9998
.4448
.9998
.4998
.9998
.9998
150.0000
.99S9
.9962
.9964
.9965
.4466
.4966
.9967
.9967
.9967
250.0000
.9796
.9817
• 98 it
• 9041
.48*6
.98*9
.9851
.9852
.9853
*50.0000
.8751
.8956
.9118
.9203
.925*
.9289
.9306
.9322
.9327
600.0000
.8046
.9027
• :* 1 65
.9243
.9290
.9320
.9336
.9350
.935*
1250.0000
.9843
.9865
• 9«m0
• 9890
.4895
.9898
.9900
.9901
.9902
1750.0000
.9888
.9905
.9917
.9924
.4928
.9931
.9932
.9933
.993*
2250.0000
.9046
.9865
.9679
.9809
.9895
.9898
.9900
.9902
.9902
3000.0000
.9334
.9449
• 95?4
.9502
.9611
.9627
.963*
.96*2
.9659
TABLE B6 WINTER
CONTRIBUTION TO PCFLOS <A>9> DUE TO LOWER CLOUDS WITH BASE HEIGHT AT H.
H(METERS)
10 DEG
?o nee
JO DEG
4 0 UtG
50 DEG
60 DEG
70 DEG
80 DEG
90 DEG
25.0000
.9941
.44*2
.99 <»?
.9*41
.94**'
99**
.99**
.99**
.99**
75.0000
.9974
.4475
.99 76
.9976
.4477
.9977
.9977
.4977
.9977
. 150.0000
.9500
.4617
1 .9527
• 95J5
.95*2
.95*3
.95**
*95**
95*5
250.0000
• 85,54
.6607
• 8610
. 0665
.6685
.8689
<8691
.8693
.869*
*50.0000
.6661
.6681
.7025
.7131
.7201
.7227
.72*2
.7255
.7269
800.0000
• 86?6
.8773
.8074
.0942
.898*
.900*
.901*
.902*
, .9029
1250.0000
. 98< 0
.4856
.9071
.9879
.988*
.9887
.9888
.9889
.9890
1750.0000
.9954
.4454
.9962
.9*65
.4966
.9967
.9967
.9968
.9968
2250.0000
.9924
.4432
• 9910
• 994?
.99*5
.49*6
.99*7
.99*8
.99*8
3000.0000
.9938
.44*4
.*96?
.9460
.4962
• .9962
.9963
.9463
.9969
NSWC TR 78-143
PINT (A,H) TABLE B7 SPRING LOCATION A
CONTRIBUTION TO PCFLOS (AX) DUE TO LOWER CLOUDS WITH BASE HEIGHT AT H.
H(METERS)
10 DEB
20 0EG
30 OEG
40 DEB
50 DEB
60 DEG
70 utG
80 DtG
90 UEG
25.0000
.9860
.9872
.9673
.98/5
.9676
.9876
.9876
.9b7o
75.0000
.9333
.9838
.9842
• ¥644
.984/
• 984 7
.98 »/
.98*7
• 9848
150.0000
.9423
.9452
.9470
• 9484
.9495
.4*98
.9500
.950?
.9503
250.0000
.90*2 ■
.9092
.9123
.9148
.91*6
.9171
.9175
.41 77
.9178
450.0000
.6706
.6*94
.7178
. 7321
, 7*06
. 7**4
. 7*70
.7*87
.7*45
BOO.0000
.8569
.8728
.8833
.6908
.8950
.6972
.8986
,8945
.9001
1250.0000
' .95*5
.9594
.9627
.9650
.9663 '
.9670
• 96/4
.9677
.46/9
1760.0000 .
.9943
.9950
.9954
.9957
.9959
.9460
.9961
.4461
.9961
2250.0000
.9979
.9961
.4482
.9983
.9963
.4464
• 9*84
..9*84
.9*84
3000.0000
.9919
.9932
.9839
• 9*46
.9949
.9450
.9*52
.9952
.9455
T ABLE B8
SUMMER
CONTRIBUTION TO PCFLOS (A.H) OUE TO LOWER CLOUDS WITH $ASE HEIGHT AT H.
H(METERS)
10 DEO
20 DEB
JO UtB
40 UtG
50 deb
60 OtG
70 utG
6 u OtG
40 DEO
25.0000
.9919
.9921
.9922
.9423
.9924
.942*
• **<?4
.492*
.942*
75.0000
.9869
.98 73
.9875
.98/7
.96/8
.4878
.*8/8
.9879
.46 74
150.0000
.9121
.9154
.9174
.9191
.920*
• *20e
.9208
.4204
.4210
250..000
.9011
.9057
. .9084
.9109
• 912 5
.9129
• 9u3
.4U5
.4135
450.0000
.6807
. 70*9
. 7200
.7322
. 7390
.7*21
. 7**4
.7*56
,7*61
BOO.0000
.8262
.8457
.85/1
.8654
• 8699
.6/2*
.87*0
• tt/4«
.8/53
1250.0000
.9662
.9506
• 9636
• 9ob6
• *668
.46/5
.*67*
• *68l
.968*
1750.0000
.9970
.9974
. .9978
.9960
.946 1
.498?
• **aJ
.9983
.9483
2250.0000
.9981
• 9984
• 9*88
.996 7
• *98«
' .4468
• 9*8*
.4469
• 9*8*
3000.0000
.9950
.9957
.9962
• 9966
.9466
.9969
.9969
.9970
.4471
TABLE B9
WINTER
'
CONTRIBUTION TO PCFLOS (A>0 DUE TO LOWER CLOUDS WITH BASE HEIGHT AT H.
H(METERS)
10 DEB
20 OEG
30 DEB
*0 Lit (j
50 DEG
60 OtG
70 OtG '
80 DEG
90 OEG
25.0000
*9971
.9972 -
• 997<?
,4*73
.99/3
.497 3
.9973
.4973
.9473
75.0000
.9982
.9983
.998*
• 9984
.9965
.9485
.9985
.9965
.4485
150.0000
.9711
.9723
.9730
.9735
.9740
.47*1
497*1
.97*2
.47*2
250.0000
.9007
.9055
• 9G«4
.9109
.9125
.4130
.9133
.41J5
.4136
450.0000
.6767
.6973
. 7132
. 7222
. 7266
. 729*
.7312
.7322
300.0000
.8392
.6561
.8673
.8/53
.8/94
’.8623
.8839
.88*8
.8653
1250.0000
,931b
.9385
.9*29
.9*62
.9*60
• 9%a*
• 94*8
.4500
.4501
1750.0000
.9960
.9955
.9956
.9960
.9962
.946?
.9*6-1
.4983
. 4963
2260.0000.,
1.0000
1.0000
1.0000
1.0000
1.0000
1.0000
1.0000
1.0000
1.0000
3000.U000
.9973
-9977
.9979
.'9981
.4982
.9482
.9983,
.4483
.446*
*
3-4
NSWC TR 78-143
PINT (A,H) TABLE BIO SPRING
CONTRIBUTION TO PCFLOS (A,H) DUE TO LOWER CLOUDS WITH BASE HEIGHT
HtMETERS) in Ott> 20 DEu 30 UE6 40 Ot'i 30 DtO
AT H.
60 Utb
7 0 Ut b
LOCATION B
60 Utft 40 uEO
<<9.0000
.9471
.4482
.448 7
.4*43
.4*98
• ***H
.4*96
73.00U0
1.0000
1.0000
1.001)0
1.0000 1
.0000
l.oooo
1 .OUOO
1 • uOuO
l.oooo
ISO.0000
• 9759
.4763
.4771
.4/78
.WtfO
.4781
.*7*1
.*75?
.9762
230.0000
.9990
.8463
.4006
.40*0
• *Ub*
.4071
♦ *U77
• *08 1
.4062
*30.0000
.6397
.6837
• 6988
.7108
. / 1 a<*
. 7212
./^4S
. 723V
aoo.oooo
.7833
• 303*
.81*4 '
. -.238
• *313
.bJ31
.0341
.63*3
1230.0000
.9843
.4902
.4407
.4410
. Wl J
.4413
• Wl4
• V^i4
.441*
1 730•0000
.9473
.997*
.44 76
,4477
• ■***7 7
.447 7
• w/o
• ** 7h
,447b
2230.0000
.9444
.49*6
.4431
.4433
.4433
• Wbb
• **3D
.4433
3000.0000
. 9882
.9897
.4907'
.4913
• Witt
• 4 420
.
.**C<?
.442*
CONTRIBUTION TO PCFLOS
M(METERS) 10 Ufcb
TABLE B11 SUMMER
(A.HI DUE TO LOWER CLOUDS WITH BASE HEIGHT AT H.
^0 l>tb JU UfO 41) Jtb 3 ! J Ot-O 6U b£(*
7U ULU
8(i Jt f l
40 Jtu
29.0000
.884 3
.8867
.8874
.1641
• 640 3
.WO J
• WO J
.8*0 J
.040*
79.0000
. 44 7 2
.4973
. 447 S
.4473
.4*7*
* **7*
• W 74
.*•**<♦
.447*
iso.0000
.9442
.4461
. 4 * 7c
. 4*62
. 4*4 1
• V4*J
• *4*3
.4*4*
230.UUOO
.“7 74
.8836
• 8B /*
.0408
.842*
.IV <4
. WJ*
• bw*
. 84*3
4SO.UOOO
. 7287
. 7464
.7577
. 786*
.7714
• 7 /<• l
.77Sb
• 7 7bb
. 7/b8
(too.0000
.9926
.4016
.4077
.4114
.4 1*.*
• **lb7
• * i bb
.*171
. 41 73
12S0.uOOu
.4902
.49T3
.442*
.4424
.4432
» **34
• v* Jb
• **Jb
. 4436
17SO.UOOC'
.4991
.445*
• 4436
.4438
.*934
I
• WbV
• w>*
• woo
. 4 460
2230.0000
.9432
.49*1
• 44*6
.9430
|
• VVD4
• WDb
.4433
3000.U000
.9839
.4640
.472*
,47*4
.*773
• *7 7b
.4/62
CONTRIBUTION
HtMETERS)
TO PCFLOS
10 UEO
TABLE B12 W
(A,HI DUE TO LOWER CLOUDS WITH BAS
?0 OE6 30 UE6 *0 UEvi :
INTER '
: HEIGHT ATH.
0 DEu 60 UE(,
7U 0£<*
00 OcG
90 Ut>
23.0000
.9532
,.95*2
• 45* 7
. 963 1
.4336
• vobh
• vbbb
• vbbb
.9636
73.0000
.9943
.494 3
• 4943
.4493
.4943
• WHU
.
. 4493
ISO.0000
.4835
.4860
.486 J
.4883
. 4667
• **bb8
• *bbb .,
• v*iob
. 9066
tSO.0000
.4077
.4129
. 4 1 8 1
.4187
.4207
• *<7lb
• i*
.4220
4SO.U000
.9818
,6123
.831*
, 6*68
.6563
• obOO
• bbi'b
• bb**3
.6680
900.UUOO
. 7448
,8117
.8227
.831 1
.6362
• ej J<*4
. 8 J*v
. d4U'#
.8*13
1230.OUOO
,9983
.4932
.4436
.94 34
. 44*1
»<#V* J
.vwbj
.44*3
1790.0000
.4446
. 449 /
.4447
,444 7
• 4448
• ***#«
« ***«
. W*H
.4446
2230.OO00
,997a
.4474
.4474
• 4480
.4480
• vvcio’
.**80
• W«(J
,446(1
3000.OO00
.9471
.4973
.4477
. 4474
.4460
• *MM1 1
• **«l
.4462
B-S
NSWC TR 78-143
PINT (A.H) TABLE B13 SPRING
CONTRIBUTION TO PCFLOS (A,HI DUE TO LOWER CLOUDS WITH BASE HEIGHT AT H.
,
LOCATION C
H(METERS)
lu UEto
20 Otto
JO tic*J
40 ULb
30
00 lit<i
/ 0 utu
no DtO
oO utO
2*.UOOO
.oil*
.OU*
• * 1 <* v
• V i b J
• y 1
• y 16*?
.y i bd
• V 1 b?
.0162
7*.9900
.9000
. o'yol
.yyy 1
• yyy 1
• vVy^
• yyy^
*yyy<?
.yvv?
.OO0£
1*0.UOOO
.97*2
• 0 761
.W*7
.-flU
• y 7 / o
.v/7*
• y / / /
• V 7 / 7
.07 77
2 * 0.0000
.9220
.927*
• * Jo*?
• V4<?3
* y J 4 ?
• yJ4 /
• y J 3 O
• VJ33
.0 3**
*SO.OU 00
. 7*b*
. 7002
• 7*4* «•
• 3050
.31 1 7
• i l4b
.3 lo J
.01 7o
.8183
BOO.0000
.8009
.0210
» *1 JP*4
• 340 \
• c13*?
• *133?
• 336V
• oboj
.8*09
12*0.9000
.9770
.9700
• vo t j
• 'tied
• y«^7
* tOJu
• Vo
.yoj.i
.08 33
17*0.0000
.9930
.003*
• *PV IV
* yy* i
. yyy^
• *. y 4 1
• W4 J
,*yV44
.00**
22*0.9000
• 9882
.0*92
• y©yV
• yyu J
• y yub
• wu /
• woo
.yyUo
.0000
300U.0000
.9721
.07*0
• y 7©y
• y / 0 *
• y / y 1
.y/W
• v/y /
• y / yy
. 0892
CONTRIBUTION TO PCFLOS
TABLE 814 SUMMER
(A.H) DUE TO LOWER CLOUDS WITH BASE HEIGHT
ATM.
HlMETERS)
10 OEu
20 UEu
4 0 ur.u
* J 6
30 «-*c.o
00
/l L7C.O
OU UC*i
tU Oc O
2*.uOOO
• 83 1 to
.0 1*1
• OjN'*
• 1 J»n
• «4'j J
iTUtl'l
• <iNO J
. "<»uj
.**03
7*.0000
.9991
.0092
• yVy?
• yyy j
• yyy.<
. y y y \
• yyyj
• yyy J
.0003
ISO.0000
.960to
.0*22
• y*. 4 0
• yoj/
• <04 •
• y©**
• t044
. 0 to**
2*9.9900
.89*6
.9000
• v u * 0
• yo*o
• yuvj
• Voy*
. yyy /
. 0900
**9.0900
.72*0
. 7*3u
• /b* 7
• /OJ3
• ft) TH
./Mi
. //Jy
. 7 7*-3
B00.O000
.8*6*
.0*91
• sews
• *> /40
.3/^4
• 1 / y*i
• <*rtO u
tllvl
. 0*1 1
12*0.9000
.9927
.003*
• v y*0
• *y*3
• <T4P.
• 4 4. /
• yyy 7
• 99<*e
17*9.9000
■ 9983
1 . 000 *
# yv-f 0
• 9-FP /
• yy - 3
• * y«i«
• y y *i 0
. »»85
22*0.0000
,9o»*
.00*0
• Tr')'*
• y^3&
• yy*j3
• yy3-
* y y?y
.vyjy
. 3**0
3000.0000
.97*0
• 9 7qO
• yd'»y
• y^c j
• y3 Jo
. TOJ4
* ■nJ'»
• y*iJb
. y 04 l
CONTRIBUTION TO PCFLOS (A .HI DUE
TABLE BIS WINTER
TO LOWER CLOUDS WITH BASE HtlGHT AT H.
HlMETERS)
10 OEO
20 Otto
30 lltto
40 Ut v>
bl> fJtv>
DO
/o uto
00 utG
yO utt»
«. OoOO
' .9*07
.otoOto
. 06 10
• vt> 1 *
• yb l a
• yo i *
• yoio
• Vhio
• yoio
7*.0000
1.0000
1.9000
l .OOllO
1 • OoOO .
i•GOOD
1.0000
i.oiioo
l.UOoO
1 .UOOO
ISO.0000
.9771
.9770
• o7*»
• y /bv
• * f tr
• y / V .1
.y/vj
• y7yj
.o/oJ
2 * 0.0000
.9297
. 0 , 1*0
.03* 7
• yj«y
• y4U3
. y4o*y
• V41 J
• V44 h
.0*16
♦so.oooo
*60 10
.7122
.7313
• /* b4
. /by 1
• /3«»»
• /*>0 J
• /*>*.!
. 7831
BOO.UOOO
.7080
• 0203
• 83S*
• P*45y
• 33^0
• 036/
• 050*
.8*01
12*0.0000
.98**
. 08*2
.0873
• V.3 p» i
• yttio
.y««p*
• yooV
• voyo
.9001
l7*0.0000
.99 72
.0973
'. 00 7 7
• yy /y
• W /v
• WHi»
*y you
• vyoo
. OY89
22*0.0000
.9992
.008*
. 99*8
• y,y« 7
• yVijH
. y <*!*<
»yy©y
• yyoy
. .0080
3000.OO00
.9037
. 0**0
• 0*30
#‘ye.hp»
• y©
. >8 7 1
• yo/tf
• vo / J
. 78 7*
B-€
NSWC TR 78-143
PINT (A,H)
CONTRIBUTION TO PCFLOS (AX) DUE
TABLE B16 SPRING
TO LOWER CLOUDS WITH BASE HEIGHT AT H.
LOCATION D
H(METERS)
10 uto
20 0EG
30 DtG
*0 Utl)
30 DtG
oO Dtfi
70 Utt>
O0 DE.fi
90 DtG
23.OU00
.9330
.9391
.9692
.9b93
.9893
.9393
73.0000
.9993
.999*
• ylw*
.999*
. 999 *
• ***4
.999*
ISO.UUOO
• 9929
.9932
• j4
.9936
.9937
*>*VJ7
; *Vjb
• **jb
.9933
230.0000
.93*3
.9336
• *bl .*
.9033
• 96*6
**bd<>
• *bbb
• *bt>>«
.9639
*30.0000
. 721b
.7*90
• itf 0
. 7bu2
• 7333
. 792 0
• 7*% J
• 7Vbl
. 7969
300.0000
. 7b 1 9
.7396
• oOeb
.9212
.,82911
.9329
• d Jbl
• bi70
.3379
1230.0000
• 9H1J
.9933
. 9b3b
. 986 1
.936*'
• vobb
• *Mb6
.936 7
1730.U000
.9963
.9963
.9973
.997*
.997*
. 9973
2230.0000
.99**
.99*9
• J
.9936
.9933
.9939
• **ou
• *°b0
.9960
3000.0000
.97*3
.977*
.930 7
.981*
.9818
• 0
. 9326
TABLE B17 SUMMER
CONTRIBUTION TO PCFLOS (AX) DUE TO LOWER CLOUDS WITH BASE HEIGHT AT H.
HIMETERS1
' 10 Dfu
20 OEG
30 Ui«
*0 utb
30 Lit G
60 oer.
70 Utl»
OO DCfi
90 DEG
23.0000
. 9*9h‘
.9303
.931*
.9319
.932*
.9323
• *bcb
.9323
To.uono
1.0000
1.0000
1.U000
l.OUOO
1.0000
1.0 u 0 >1
1*0000
1 *00u0
1.0000
130.0000
• 9b23
.9X32
.9333
.9333
.99*0
.93*0
• *a*[U
• *b*o
.93*0
230.0000
.932*
.9339
• 93«0
.9397
. 9*09
.9*13
• 4+ lb
• V417
.9*13
*30,0000
.7**1
.'7663
.731 1
.7919
. 7980
.8010
,*ou^7
• 8041
.30*6
300,0000
.9193
.3*33
. 36113
.8709
.8/73
.8809
1 • oocb
• »*%4
.3332
1230.0000
.9909
.9921
.9929
.9933
• 9939
• *9*0
• fi** 1
.99*3
1730.0000
.9992
.9983
.99*7
. 9933
.9988
.9989
•
.9989
2230.0000
.9933
.9933
. 99* 1
.99*3
.99*9
. 99**
• s*4b
• .99*6
3000.0000
. 9 793
.9791
.931 *
.9633
.98*1
.98*8
• *d*d
• vbbH
.9836
TABLE B18 WINTER
CONTRIBUTION TO PCFLOS (AX) DUE TO LOWER CLOUDS WITH BASE HEIGHT AT H.
HIMETERS)
10 DEG'
20 DEG
30 Uho
*0 DtG
30 Oto
60 DEG
70 Ufc.fi
80 DtG
90 DtG
23.0000
.9938
.9939
.9939
.9960
.9960
.9960
• VVoO
.9960
.9960
73.0000
1.0000
1.0000
1. O0 00
1.0000
1 .O 00 O
1.0000
1 .OUUU
l.OOon
l.OUOO
130.0000
.9969
.9971
.9973
•
.997*
.9975
.99 73 •
• v*?b
.9976
.99 76
230.0000
.9339
.939 7
• 9622
.96*2
.9633
.9660
• *bb4
.9636
.9067
*50.0090
.6813
.713*
. 7363
.7320
• 7620
• 7662
• food
.7711
.7/20
aou.oooo
.7269
.7380
. 7790
.7938
.8026
.8070
.8117
.8127
1230.0000
,9893
.990*
.991 1
. 7915
. 7918
.9920
.9921
.9921
1 730.0 000'
,9986
.9938
.9989
.9990
. 9990
.9990
• *¥V0
.9990
,9991
2239.9000
.9970
.99 72
.997 1
.99 7 J
.997*
.997*
• / 4
.99 73
.9973
3009.0000
.9928
.9937
.99*2
.99*7
.99*9
.9930
.9931
.9932
B-7
NSWC TR 78-143
PINT (A,H) TABLE 819 SPRING LOCATION H
CONTRIBUTION TO PCFLOS (A.H) DUE TO LOWER CLOUDS WITH BASE HEIGHT AT H.
H(M6TE9S)
io leg
20 LEG
30 leg
*0 LEG
50 LEG
60 LEG
70 LEG
80 OeG
90 LEG
23.0000
.9*57
.9958
.9959
• 9959
.9960
,.9960
.9960
.9960
.9960
75.0000
1.0000
1.0000
i.oooo
1.0000
1.0000
1.0000
1.0000
1.0000
1.0000
150.0000
.9980
.9920
.9981
.9981
.9961
.9981
.9981
.9961
.9981
250.0000
.9801
.9813
.9826
.9831
.9835
.9637
.9836
.9839
.9839
450.0000
.7983
.8173
.8302
.8392
.6**9
.8*7*
.6*69
.6502
.6507
800.0000
.70*7
. 7373
• 7603
.7755
. 7852
.7896
.792*
.79*6
.7956
1250.0000
.970*
.9738
.9761
.9777
.9787
.9791
.979*
.9796
.9797
1750.0000
.9932
.9936
.9939
.99*2
.99*3
.99**
.99**
.99**
.99*5
2250.0000
.9930
.993*
.9937
.9939
.99*0
.99*1 .
.99*1
.99*1
.99*1
3000.0000
.9878
.9899
.9908
.9921
.992*
.9926
.9927
.9926
.9936
CONTRIBUTION TO PCFLOS IA.H) DUE TO
TABLE B20 SUMMER
LOWER CLOUDS WITH BASE HEIGHT AT H. ,
H(METERS)
10 UEo
20 LEG
30 LEG
*0 LEO
50 LEG
60 LEG
70 LEG
BO LeG
90 LEG
23.0000
.998*
.998*
. .9983
.9985
.9985
.9985
.9965
• 99 bS
.9985
75.0000
1.0000
1.0000
1.0000
1.0000
1.0000
1.0000
1.0U00
i.uOOO
1.0000
150.0000
.9995
.9993
.9995
.9995
.9995
.9995
.9995
.9995
.9995
230.0000
.99*2
.99*6
.99*9
.9951
.9952
.9953
.9953
.9953
.9953
*50.0000
• 8828
.8833
.8983
.9072
.9126
• 9158
.917*
.9190
.9196
800.0000
.8159
.6*8*
.8729
.8666 ‘
.89** •
.6996
.9016
.90**
.905*
1250.0000
.9919
.9933
.99*3
.99*9
.9952
.9955 ’
.9956
.9957
.9956
1750.0000
.9922
.9928
.9932
. 99 J5
.9937
.9936
.9936
.9938
.9939
2250.0000
.9920
.9928
.9933
.9937
.9939
.99*0
• 9V*1
.99*1
.99*2
3000.0000
.9801
.98*0
.9898
.9682
.9669
.9893
.9895
.9896
.9912
TABLE B 21 WINTER
CONTRIBUTION TO PCFLOS <A,HI OUE TO LOWER CLOUDS WITH BASE HEIGHT AT H.
■ ,
H(METERS)
10 LEG
20 LEG
30 LEG
*0 LEG
50 LEG
60 LEG
70 UtG
BO ueg
90 LEG
25.0000
.9950
.9951
.9952
.9,952
.9953
.9953
.9953
.9953
.9953
73.0000
.9998
.9999
.9999
.9999
.9999
.9999
■.9999
.9999
.9999
150.0000
.9979
.9981
.9982
.9962
.9963
.9963
.9963
.9963
.9963
250.0000
.97*1
.9762
.9775
.9 766
.9793
• 9 796
.9798
.9799
.*799
•50.0000
.7502
.7717
.7657
.7963
.8029
.8057
.8076
.6090
.6095
800.0000
.7089
,/*07
.7639
.7 795
.7891
. 79*0
.7970
. 7992
.6003
1250.0000
.98*7
.9869
• 968*
.9893
.9699
.9902
.990*
.9905
.9906
1750.0000
.9978
.9978
.9980
.9961
.9962
.9962
.9962
.9962
.9962
2250.0000
.9932
.9939
.99**
.99*7
.99*9
.9950
.9951
.9951
. 9952
3000.0000
.9883
.988*
.9895
.990 7
.9911
.9913
. 991 *
.9915
.9922
NSWC TR 78-143
PINT (A,H) TABLE B 22 SPRING LOCATION I
CONTRIBUTION TO PCFLOS (A,Ht DUE TO LOWER CLOUDS WITH BASE HEIGHT AT H.
H(METERS)
10 D£o
20 UtG
30 DEO
*0 Dto
50 DEG
60 OiG
70 DEG
80 DEG
90 DEG
25.oooo
.9077
.9978
.9978
.9979
.9979
.9979
.9979 .
.99 79
.9979
75.0000
.9985
.9986
.9986
.9966
.9987
.9987
.9967
.9987
.9*67
lsj.uooo
.9786
• S' 79*
.9799
. 9eb*
.9807
.9808
.9608
.9608
.9608
250.0000
.91*2
.9187
.921*
.9237
.9252
.9257
.9260
.9262
.9263
*50.0000
.662*
.6965
.718*
.7351
.7**7
.7*9*
.752*
. 75*6
.7556
800.0000
.8293
.8509
.8655
.8752
.8806
.8838
.8856
.680,8
.8875
1250.UOOO
.9*86
.9539
.957*
. 9599
.9612
.9620
.-625
.9628
.9629
1750.0000
• 99 36
.99**
, .99*8
.9952
.995*
.9965
.9955
.9956
.9*56
2250.0000
.9985
' .9986
.9967
.9983
.9986
.9986
.9989
.9989
.9989
3000.0000
.9962
.9960
.9968
.9971
.9972
.9972
.9972
• 9y 72
.9973
CONTRIBUTION TO PCFLOS (AXI DUE TO
TABLE B23 SUMMER
LOWER CLOUDS WITH BASE HEIGHT AT H.
HIMETE.RS)
10 DtG
20 OEO
30 deg
*0 Dto
50 UtG
6,0 UEG
70 DtG
80 DtG
90 DEG
25.0000
.9950
.9952
.9953
.995*
.995*
.9966
.9965
.9955
.9955
75.0000
.9915
.9917
.9919
.9920
.9921
.9921
.9921
.9921
.9921
150.0000
.9312
.9339
.935*
.9368
.9378
.9360
.9381
.9363
.9383
250.0000
.8815
.0883
.892*
.8959
.8981
.8969
.8995
.8998
.8999
*50.0000
.6738
. 7056
. 7261
.7*16
. 7505
. 75*8
.7577
. 75V5
.7003
800.0000
.8*27
.861*
• 87*0
.8826
.887*
.8901
.8918
.8928
.893*
1250.0000
.9786
.9809
.982*
.9o3*
.9839
.98*2
.98**
.98*5
.98*6
1750.0000
.9978
.9982
.9986
.9988
.99e9
.9989
.9990
.9990
.9990
2250.0000
.9991
.9992,
.9992
.9993
.9993
.999 3
.9993
.9993
.9993
3000.0.000
. 9983
.9987
.9969
.9991
.9992
.9992
.9992
.9993
.9993
CONTRIBUTION TO PCFLOS
TABLE B24 WINTER
(A.HI DUE TO LOWER CLOUDS WITH BASE HEIGHT AT H.
’
H(METERS)
10 0LG
20 OLG
30 0t G
*0 UtG
50 Oto
, 60 UEG
70 DtG
60 UtG
90 DtG
25.0000
.9990
.9992•
.9993
.999*
.999*
.999*
.999*
.999*
.999*
75.0000
.995*
.9956
.995 7
.,9958
.9959
.9959
*9959
.9959
.9959
150.O000
. .96*0
.9655
.9663
.9671
.96 76
.9678
.98/9
.96/9
.9679
250.0000
.8995
.906*
*91 0 7
.91*2
.9163
.9172
.91/8
.9162
.918*
* 50.0000
.6795
. 7169
. 7*1*
. 7589
. 7691
.7 7**
. 77 75
.7799
.7812
000.0000 ,
.8636
.8802
• 691 1
.8986
.9028
.9052
.9065
.9075
..9081
1250.0000 '
.93**
.9*08
.9*52
.9*81
.9*98
.9506
.9513
.961 7
.9519
1/50.0000 ,
.9965
.9969
• 9971
.9973
.997*
. 99 7*
.99 7*
.997*
.9975
2250.0000
1.0000
■ I.000U
1.0000
1.0000
I.UOUO
1 .1)000
1.0000
1.0000
1.0000
3000.0000
.995*
• 9960
.996 1
.9966
.9968
.9968
.9969
.9969
.9970
B—9
NSWC TR 78-143
PINT (A,H)
CONTRIBUTION TO PCFLOS IAJHI DUE
TO
TABLE B2S SPRING
LOWER CLOUOS WITH BASE HEIGHT AT H.
LOCATION J
H(METfcRS)
SO OEG
29 OEG
30 0 t G
*0 l)to
80 DEG
60 OEG
70 uEG
80 OcG,
90 UE6
25.0000
.991*
.9917
.*91 7
.9519
.9920
.9*20
.9*20
.9920
19920
78.0000
.9003
.9908
.9506
.990 7
.9906
. 9*08
.9906
.9908
.9908
loo.uooc
. 98o2
.9600
.9610
.9619
.9626
. *827
.9629
.9629
.502*
250 . jooo
. 9389
.9*26
.9**9
. 9*68
.9*80
.9*8*
.9*67
.9*69
.9*90
*5o.u000
.7818
.8061
• 6222
.8338
.8*06
. 8** 1
. 6*61
.6*76
.6*85
800.0000
.801*
.626 7
.6*73
.6895
.666*
.6/05
.8726
.87*5
.8/53
1250.01)00
.9272
.9358
.9*10
.9**8
.9*69
.9*61
.9*69
.9*93
.9*95
175O.O000
.9878
.5692
-99u2
. 9*09
.951*
.9915
.9*16
.9917
.5*1 /
2250.0000
.9988
,9989
.*9e9
.9990
.5990
.9990
.9990
.9990
.9*90
300U.U000
.99*6
• 5988
.9961
.9966
. 9968
.9970
• 997o‘
.99/1
.9973
CONTRIBUTION TO PCFLOS (AXI DUE
TO
TABLE B26 SUMMER
LOWER CLOUOS WITH BASE HEIGHT
ATH.
HIMETERSI
10 OEG
20 0£o
30 l)CU
*0 utG
50 Otu
60 OEG
70 Leg
60 UtG
*0 uEu
28.oOuO
.9760
.■•765
.*ln7
.97 70
.97 72
.9/73
.9773
.97/3
.9/73
75.0000
.9621
.9828
. 96<'8
.9630
.*832
. *6 3*
• 9832
.9832
.'•ait
150.0000
.9380
.9370
. *38 1
.*391
. *3*9
.**00
.9*00
. 9*u 1
.**01
280.0000
.90*8
.909?
• VI15
.9136
.9151
.9155
• 9158
.9160
.9160
*80.0000
.7388
.7589
. 7736
.7653
. 751b
. 7**9
.796*
• 796 3
. 7 *68
800.0000
.9131
.8336
.6*73
.8566
.8619
• 66*8
.666*
.8675
• 8062
1280.0000
.9377
.9*33
. 9*69
.9*96
.*511
.*819
.9523
.9526
.9528
1780,0)00
'.9983
.9959
.996*
. 996 7
.**66
.**65
.9*70
,9970
.9*71
2280.0000
.999* .
.9990
.*997
.9997
.***8
.99*6
.9996
.9998
.9*98
3000.O000
.9980
.9956
.9963
• *968
• *9bV
.**71
.9*71
.9972
.9*73
CONTRIBUTION TO PCFLOS
(A,HI DUE
TO
TABLE B27 WINTER
LOWER CLOUOS WITH BASE HEIGHT AT H.
'
HIMETERSI
10 oeo
20 DEG
30 OEG
*0 l)Ev>
50 OEG
60 UtG
70 GtG
80 UtG
90 UtG
28.0000
.998*
.9955
• *956
.9987
.*956
.**58
.9988
.9958
.9956
7 8.1)1)0 0
.998 7
.998 7
.9988
.5986
, .9988
.9*88
• 9*66
.9968
.9986
180.0,000
.9773
.9785
.9793
.9/99'
.960 3
.9605
.9606
.9807
.9607
280.0000
.9*27
.9*01
• 9*«2
.9800
.9512
.9516
.9519
.9521
.9522
*80.0000
.7277
. 756 7
.77*5
. 7893
. 797*
.eOls
.8039
.6089
.6067
000.0000
.7721
. 7977
.61*6
.8266
.8338
.63/6
.639/
.6*13
' .8*22
1280.0000
.92*9
.9318
.9367
.9*01
.9*20
.9*30
.9*37
,V**0
.***2
1780,0000
.9931
.9936
.99*2
.99*5
.*9*7
.99*8
.99*8
.99*8
.59*9
2280.0000
.9982
.998*
.*986
.996 7
.*98 7
.998*
.9986
.9988
.9986
3000.OO00
.9978
.9982
• 99s3
. *986
• **66
.*967
.9*87
.996 7
.**86
B—10
NSWC TR 78-143
PINT (A,H) TABLE B28 SPRING LOCATION K
CONTRIBUTION TO PCFLOS (A,HI DUE TO LOWER CLOUDS WITH BASE HEIGHT AT H.
H(METERS)
1 0 OtG
20 DEO
JO Uta
*0 Utli
30 Dtl>
aO ul a
70 UCll
80 DtG
90 uta
23.0000
.9782
.9/98
.980 7
.98 Is
.9619
.9321
.9822
• 982 3
.9823
73.0000
.99ft*
.9963
• 9986
. 9986
.9987
.9987
.9987
.9907
.9967
130.0000
.9735
.■*7*3
.97*8
.9 7,32
. <733
• 973a
.9736
.9736
.9736
2S0.0000
.9*56
' .9*60
.9*9*
. 9306
.931*
• 9316
.9316
.9319
.9319
*50.0000
.7703
.7920
.6063
.8163
.622*,
. «2 5*
.8271
.8283
.8290
800.0000
.7639
.6120
.8311
.6* 37
. 3506
.6350
.83 7 J
.8390
.8396
1230.O000
.9560
.960*
.9633
. 903*
.9663
.9671
.9673
.9677
.96/8
1750.0000
.9655
.9877
.9892
.9901
. 9*06
.9910
.991 1
.9912
.9913
2250.0000
.9955
.9961
. 9966
.9969
.9970
.9971
.99 72
.99/3
.99 73
3000.0000
.9920
.993*
.99*2
. 9930
.9933
.993*
.9933
.9936
.9*60
TABLE B29 SUMMER
CONTRIBUTION TO PCFLOS (A>11 DUE TO LOWER CLOUDS WITH BASE HEIGHT AT H.
H(METERS)
10 Ota
20 OtG
JO UtG
*u uta
30 Oca
60 uta
/0 uto
80 UtG
90 uta
23.0000
.9983
• 9963
• l***
.998*
.996*
.998*
• 998*
.9*8*
.998*
73.0000
.9951
.9933
oW5^
.9933
. 9936
.9*36
.9936
.9936
.9936
130.0000
.9679
.9689
.9701
.9703
.9/06
• 97o6
.9700
.9/06
230.0000
.9*26
.9*31
• **6S
.9* 76
.9*67
.9*89
.9*91
.9*92
.9*92
*50.0000
.78*3
.6029
.6233
.8283
.6 J09
.632*
.833*
.8339
600.0000
. 7*89
. 7793
• oQU 1
.813o
.8213
.6239
.0286
.8303
.8312
1230.0000
.95*3
.939 7
o^Oj*
. 9638
.3671
.9679
• 966*
.9667
.9669
1730.0000
.9830
.9670
» 969 3
.9896
.9901
.990 3
.990*
.9903
2250.OuOO
.9963
.9967
.9971
.9972
. 99 7 J
.9973
.99/3
.9973
3000.0000
.9892
.9907
.992*
. 9926
.9930
' .9931
.9931
.993*
CONTRIBUTION TO PCFLOS
(AX) OUE TO
TABLE B30 WINTER
LOWER CLOUDS WITH BASE HEIGHT AT H. '
HIMETERS)
10 0E6
20 UEG
30 UtG
*0 ota
. 30 UEG
.60 UEG
70 UtG
60 UtG
90 UEG
23.0000
.9978
.9980
.9961
.9982
.9963
.9961
.9963
.996*
.998*
73.0000
.9976
.99 79
• 9960
.9960
.9980
.9980
.9960
.9960
,9960
150.O000
.9716
.97*7
.9733
.9759
.9763
.976*
.9763
.9763
.9763
250.0000
.9396
.9*33
.9*3 7
.9*73
■ .9*8 7
.9*91
.9*9*
.9*93 ,
.9*96
*50.0000
.7816
.8037
.8181
.8286
,.’83*6
.9376
.8397
.8*10
.6*17
S00.O000
. 7*6*
. 7727
. 7900
.802*
.609 J
• al 32
.8133
.8169
,6176
1230.0000
.9207
.92 79
' .9327
.9360
.9379
.9369
.9393
,9.199
.9*01
1730.0000
.9627
. 96*6
.9639
,9866
. 96 7 3
• 96 7ft
.98 76
.96/9
,9880
2230.0000
.9969
.9991
. 9992
. 9992
.9993
.9993
.9993
.9993
.9993
3000.0000
.9893
.9911
.9920
.9*27
.9931'
.9932
. 993 J
.993*
.9*37
B—11
NSWC TR 78-143
PINT (A,H) TABLE B31 SPRING LOCATION M
CONTRIBUTION TO PCFLOS IA>0 DUE TO LOWER CLOUDS WITH BASE HEIGHT AT H.
H(METEAS)
10 ocs
20 OCS
30 OCS
40 OCS
SO OCS
90 OCS
70 DCS
•0 OCS
90 OCS
zs.oooo
.0052
.9055
.9057
.9050
.9090
.9090
.9090
.9090
.9*90
75.0000
.0093
, .9993
.9993
.9994
.9994
.9994
.9994
.9994
.9994
1M.IMI
.9063
.9099
.9072
.9979
• 9S70
.9070
•9079
*9«79
.9*79
ZSt.ltll
.9970
.9700
.9713
.9725
.9731
.9734
.9739
.9737
.973*
450*0000
.7902
.9102
.9309
.0410
.0471
.9490
.•517
.•531
.•535
•00.0000
.0074
.7241
.7400
.79*0
.7795
.7017
• 7«5*
•7«79
• IMS
1250.0000
.9212
.9319
.9307
.9435
.9494
.9479
• 94«9
.9499
.9499
1750.0000
.9949
.9957
.9992
.9995
.9997
.9999
.9999
.9970
.9970
2250.0000
.9994
.9990
.9972
.9974
.9975
.9979
.9979
.9979
.9979
.9979
.9902
.9903
.9907
.9900
.9900
• 99M
.9999
.9992
TABLE B32 SUMMER
CONTRIBUTION TO PCFLOS (A>41 DUE TO LOWER CLOUDS WITH BASE HEIGHT AT H.
HIMETEASI
to OCS
20 OCS
30 OCS
40 OCS
50 DCS
90 DCS
70 DC*
•0 DC*
90 OCS
25.0000
.9545
.9555
.9559
.9594
.9599
.9599
.9599
.9599
.9599
75.0000
.9944
.9949
• mi
.9949
.9950
.9950
.9950
.9950
.9950
150.0000
.9593
.9909
.991*
.9627
.9933
• 9*34
.993*
.9539
.9934
250.0000
.9292
.9333
.9359
.93*1
.9395
• 1319
.9403
.9405
.9409
4S0.0000
.9«74
7150
.7325
.7499
.754*
.75*5
.7911
.7929
.7935
•••.loot
.7910
.•144
.•295
.0400
.•473
• •505
.0527
.•541
.•547
1250.0000
.9709
.9749
.9773
.9791
• 9«01
• 9101
.9*11
.••14
.9*15
1750.••••
.9952
.9990
.9995
.999*
.9970
•M71
.9972
.9972
.9972
2250.••••
.99M
.9991
•mi
.9993
• im
.9994
.9999
.9995
.9995
.9991
.9970
.9979
.99(0
.99*1
.99*2
.9992
.99*5
TABLE B33 WINTER
CONTRIBUTION TO PCLFOt IA>4) DUE TO LOWER CLOUDS WITH BASE HEIGHT AT H.
HIMETEAS)
10 DCS
20 0C0
30 OCS
40 OCS
50 OCS
40 OCS
70 OCO
•0 OCS
90 OCO
25.0000
.9974
.9974
.9977
.9977
.9977
.9977
.9977
• .9977
.4470
TS.OOOO
.9997
.9997
.9997
.9997
.9997
.9997
.4997
.4447
.9997
iso.oooo
.9951
.9953
.9954
.9955
.9955
.4955
.9954 ■
.9954
.9454
250.0000
.97S0
.9795
.9005
.9013
.••!•
.9*22
• 9SL3
.••23
450.0000
.4944
.7257
.7444
.7590
.747*
.7717
.7744
.7743
.7770
•00.0900
.4777
.7125
.7351
.7521
.7423
.7470
.7701
.7724
.7733
1250.••••
.9540
.9407
.9447
.9474
.9491
.9700
.9705
.9709
.9711
1750.0000
.9991
.9993
.9994
.9994
.9995
.9995
.9445
.9995
.9995
2250.0000
.9900
.9990
.9991
.9992
.9992
.4593
.9993
.9493
.9943
3000.••••
.99*5
*9907
.mi ,
.9990
.9990
.9990
.4441
.9441
.9992
B—12
NSWC TR 78-143
Pint <a,h) table 834 spring location n
CONTRIBUTION TO PCFLOS <A,H) DUE TO LOWER CLOUDS WITH BASE HEIGHT AT H.
BASE. BT
10 Oil*
^0 oeo
Jt* L/tO
* u ut U
OU '>tO
OU UtlP
70 Uto
B0 Deij
ot) ut6
£■3.00 00
* ***** 7
• *** 7
• 7
A ‘P'P^T
• Vt*7
. 3337
.3337
73.0000
* '•Vy 7
a *** /
• <-»Vo
#
A •p'P’Pfc
a'P'PVO
.0003
.3006
130.0000
• ‘pOf 3
• ffe'*
• PTfl-O
A PPO*
. OOo*
.330*
230.0000
.V<rJ*
• ■p'p* 1
• *•■7% b
• <
• v-po 1
• '*■**€ .
A 'P'Pbi
.0033
.333*
*30.OU00
• M*rfO 1
.'PUO*
* *RO 7?
.-pin
• * I D (>
A PiO*
.VI 1c
.31 7b
.3100
800.0000
a3<T* J
a 5 7jo
• bu* 0
• OfOb
• oJtb
• 0*6*4
aB3(7 1
.6331
.03*2
1230.00.0
• "PftSfc
• 3
a*p /'• 1
a*/ 16
• vice
a-p/^6
.0/20
.3/JU
1730,0000
• **06
• ‘P'pT- 7
• ***>6
A
1
I
*
>
»PTM
( . 0 O 0 B
.3300
2230.0000'
, ’****£'
• PT'PC
A V'+fC
A P’P'P J
A -P'P'P J
• o.o3
.333.1
3oOO.OOOO
S>P
• '*'*65
A P’PftB
a PT6 7
a -p*po 7
. O.CB
.0370
TABLE B35 SUMMER
CONTRIBUTION TO PCFLOS (A.HI DUE TO LOWER CLOUDS WITH BASE HEIGHT AT H.
•
-«3t bT
10 DS<.
20 r >lo
Jv UC
*• J */t u
5J "tO
OU Ut'»
• U tco
eu uti-
30 2t<»
23.WOOO
.003/
, 0.0 /
• S'M /
• ft/
A ■p'P'p 7
A P'P'P 7
A **» 1
. 0.0 7
.333/
73..000
1. 1000
1.0000
1 • w/U'/U
i A U V U J
1a 7'»t J
1a »i u 0 c
1 A U0C 0
I. o 0.0
1.3<#0C
I 3 O. 0 O 00
. 33.2
• .oo j
o-»N4J
• PTTJ
A P 1 ** 3
A PPV 4
...03
.3331
230.O000
. 033 1
• ■*033
# * *5 7
• FF5R
A
A **5*
. 3.30
.3333
*30.0000
.0132
..216
• *<"* i
• *JJ^
A P 150
a p 5P» 7
• » J 76
w 330 O
. 3 JOf
aoo.oooo
• * A 0 3
.3 331
• J ! c i
A »*• / 1
A O 1 C *»
A** V*»
.&i3U
.B2D*
.0*33
1230.oOOO
.OB* 7
... 7.
• TOO 1
a poo 7
•
a po-p 1
a rpp'ptf .
• 3333
• 3033
1730.0000
.3306
...»/
• ? 7
f »Tj/
A PPI"
A A**-
a 'p'pob
.3330
.3360
2230.0000
, oovo
. .333
• fVV'i
.FTT 1 *
• P'tpv
. aPV<a
A P'p'P'p
a 333.
.3333
JOCO.OOOO
.»306
. *ool
a •* p's J
• -P'P'P*
a p-pp*
a* A * **V
. 0..S
.3333
.3336
CONTRIBUTION TO PCFLOS
(A>0 DUE
TABLE B38 WINTER
TO LOWER CLOUDS WITH BASE HEIGHT AT H.
r*St wt
10 uf o
20 Ot>*
3*1 UtO
.u uto
*0 OtO
6U UtGT
/« uto
ou 0t&
30 0t6
-3.U000
.00 72
.007 3
. ^^n
• V'P 7*
. 0 ./*
.307*
.337*
13.0000
.333*
. 000 *
• 1VPR
. .. 0 *
• PVVS
,13333
.00 33
.0303
130.0000
.00*1
. *.<*2
• tVN#<
..OBJ
A -P-P6 1
• 306 3
. 300 3
. 300 J
230.0000
.00*3
.3636
• p*6 1
• Otofcft
• -pHf,«#
A*o/n
• OB/|
.OB/I
.3072
*30.0000
• Bel*
• B/S*
• do 0
. BOO I
a1*P I<1
A »»***
• B.33
. BOB*
.036/
OOO.O000
• 3* 13
.3*22
• 6*00
A OO | 7
.0/2*
.6 736
.6/70
1230.0000
,*nu
. <766
• •**»'-1
.03 1 11
AV*|0
B **• 1 H
• 36<J
. OB2 |
.3621
1730.0000
, £.19
• P*P1«
• 003 »
A ***<»
A P'P'P!!
. ...O
,0V *tl
. 3300
2230.0000
.OOO*
, 00.*'
• PV’P*»
• ... /
A P P‘» 7
A P'P'P 7
• ml
.0307
, 3 #0 7
3000.0000
,3.*. 1
■ , #.3.
• ♦'#/ J
../I"
A ’P
A P 76 >
. .001 •
.0 #6|
• 330 J
NSWC TR 78-143
PINT (A,H) TABLE B37 SPRING LOCATION P
CONTRIBUTION TO PCFLOS (A.HI DUE TO LOWER CLOUDS WITH BASE HEIGHT AT H.
H(METERS)
10 LIE 0
20 ufco
JO uto
<*0 Jto
DU Ut-G
6U L»tl*
70 utv>
au utii
90 Jtl>
23.0000
• V*10
.0*23
• *«•<>*
• *4 JD
• *4*1
• *44 1
• 0441
• 0**1
.9**1
73.0000
. *063
• *96 7
• ^<#b*
• *P* 7'*
• *V7u
. . 0/0
.0070
130.0000
.93>.6
. o*0o
• 1
• *P4
• '*•4 i
• *44<*
• *444
. 0 ***
.0**6
230.0000
.0212
. *230
• *<?74
• *** J
• * 3 06
• * J1 u
• Pil j
.0313
. 0 J 16
♦3O.U000
• 6** v
. 6/60
• 0 * 7 d
• 7i2*
• 7^J
• 7<?66
• 7 £t0
.7310
• 7 J20
B00.0000
.866/ '
.0706
• dod J
• d**^
• d*o0
• d***d
• PUOO
• 0 OI 6
.0020
1250,0000
.0001
.0912
• **<?0
• *4 V <f,6
• **£d
• J)
• 9*ii
.0032
.0032
1730.0000
.0060
.0062
• TSh J
• **d4
. **04
.0903
.0063
2250.0000
.oo/O
.0072
• -pt 74
• ** 7d
• ** fh
• ** 74
• **7o
.09/7
,oo77
3000.0000
. 0036
.*06/
• * * ( C
.**•7 7
• *<*7<#
• Will
. ooaO
.006*
TABLE B38 SUMMER
CONTRIBUTION TO PCFLOS (A.HI DUE TO LOWER CLOUDS WITH BASE HEIGHT AT H.
HIMETERSI
10 0t<>
2 0 L't>*
JO uho
4 U L. t 1 J
DU LCD
6 0 *#tu
/ 0 utb
OL Lltlj
00 oto
23.0000
.0107
.021 »
• **<*<
• **c J l
.'p/J*
• J*
•
.02J9
.0230
73.0000
. 0002
.0003
• **U#>
• * *Od
• **U*
• P*U*
• PPWP
.OOOO
.0009
130.0000
• 6030
• 6flOO
• o*f i £
• d *•»«
• "■*60
• d*D*
.6033
.603*
230.OU00
.876*
.8817
• of**o
• *o7o
• drt*D
• C***
. 0^0 j
.601/3
. 00 O 6
*50.0000
,6*0f
.6620
.6// 1
• bdd^T
• 6*d i
• 6*OU
• »**/
. 7006
. 7013
B00.0000
.86 J3
.6012
• O'** £
• PUUO
• *0£4
• **JJ *
• PWW
.00*3
, 00*3
1230.0000
.Oe 71
.0380
♦ *0*0
• *** J
• *^*4 (
• *t»*D
. »8o-i
• 0693
1 rso.oooo
.0063
.006 7
• ** fi*
• **•<0
• **p*«
• ***|
• ***i
. 0 O 0 I
• 0004
2230.0000
.00/0
.0082
• J
, • T'FC *♦
. *<#db
• ••‘POD
• WOO
. 0 066
.0066
3000.0000
.9073
.0*60
• tVl.1
• • *»*>
• -#*d6
• 7
«vpo7
.0066
.9069
CONTRIBUTION
TO PCFLOS <AXI DUE TO
TABLE B39 WINTER
LOWER CLOUDS WITH BASE HEIGHT AT H.
HIMETERSI
10 oeo
20 010
JO Dto
40 OtO
30 uto
60 »>fcG
70 UtO
60 Otli
oU utO
23.0000
.031*
.032*
. *bi>*
• *6 J4
.03 JO
• p5JS
• *bi*
.0330
.03 39
/3.OO00
.9933
.0033
• **S6
• 9*b 7
.005 7
• **b6
• *#*68
.0938
.9036
150.0000
.0266
.0113
• *J1 J
••*J4 T
. *330
• * 16 i
• *J6J
• OJ6*
. 0363
230.0000
.01)2
.0153
• *l*l
•
.0217
• vit \
.0226
.0227
*30.0000
.601 7
.6 362
• 601 *
• 6 7*4
.6001
• 6*Sl
• ovol
. 700*
. 7016
SOO.OOOO
.8061
.0061
• **!»>
.02* <
• ■PfcOO
• **7 4
.0261
.0206
1230.0000
. 0066
. 0 O 6 O
•
• **64
. *063
• **6d
• **06
.0966
.0066
i730.0000
. 0002
. o003
•
• *VV J
• .0003
• *** \
• ***♦
.099*
.009*
2230.0000
.00/2
. 0973
• ** /4
• ** 74
• *0 73
.00/3
• **/>
.09/3
.9973
3000.oOOO
.0006
. 00 1 J
• ^1/
•yvtl
.0023
.002* ’
• ***b
.0923
.9026
8-14
NSWC TR 78-143
PINT (A,H) TABLE B40 SPRING LOCATION T
CONTRIBUTION TO PCFLOS (A.H) DUE TO LOWER CLOUDS WITH BASE HEIGHT AT H.
HIMETERSI
it Otu
**u Dto
JO l/t Li
*♦0 uLU
bO Gtu
bO UtG
70 UtG
bu UtG
90 utt>
*8.b000
.44 36
• **44
• **4f>
.*<P4M
• 'P'f 4*^ \
.99*9
78.UOOO
1.0400
i.OOQu
1 • uOOO
1 • uu00
i.uOuo
1 • U U 0 U
i.UOuO
1 • uO.uO
l.UOOU
liU.OOOO
.49 84
.**61
• **o3
• **ob
• **66
• **bb
.**66
.9966
*64.4000
.99*1
• **4b
• **bi
• **b<?
.^P3J
• **d3
.990*
*6U.U000
. 906 |
• *<?»s 1
• * Jib
• *3brt
• *3bb
. * J*b
• .*40h
.9*09
SOU.UOOO
• 60 0 3
• o
• Ob/'*
.0/71
« 4«6«r
• 6*34
• b9oO
.6986
1 * 44.0000
.9*77
. *5bb
• *637
• *b73
• *6*b
.*711
.*/!*
• *7*b
,97*6
1 7SO.UOOO
.9900
• ** 30
.**3 7
• *940
• **44
• **4*
.99*0
**8U.0 COO
.998 b
.’PVo/
• **PiP»
• **b*
• **b*
• * * 1 u
. ** / u
• **/0
.9974
JOuO.OOOO
.496*
• tv7o
• ** / 7
. **»/
• **o 7
.**b*
.VTB8
• WOH
.•9996
CONTRIBUTION TO PCFLOS
TABLE B41 SUMMER
IA >11 DUE TO LOWER CLOUDS WITH BASE HEIGHT
ATM.
HIMETERSI
10 Uto
<>0 uto
JO ue
, 40 Utu
bO LLU
bu utd
/u uto
au UtG
9b u£l>
*4.u000
.484*
.9661
• *7 1 b
. 97*0
• *7b<?
.*/7j
• * 7 7*
• *7«4
.9 786
78.UOOO
1 .Obuu
1.4000
i•UUO0
1 .OubO
I.UOUO
1.UUOO
i.UOUO
1 • vouu
l.uuub
180.UOOO
• 494*
.9993
• *** j
.9993
• ***4
• ***4
.'»'<P4
.999*
*80.UOOO
.99*0
.990*
• **b«
. 996 1
• *#**03
. **b4
• **b<*
• **bb
.4960
*8U.uooo
.68*1
.97*0
• O* 1 0
.4ulO
• *ObPi
• T It) 4
.*1*4
• *!*•«?
.91*6
aOu.bOOO
.8089
.9900
• *i 7b
.4*74
• *3*3
• * J* l
.*4**
• *4 J"
.9**3
l*8U.or*o
.9908
. 997*
• ** 7*
.9901
• '**•14
. **04
• T*»01
.9900
1 7 8t
.999*
.999 3
• ***«•
.9990
• ***b
. * P**>
• ***b
• ***b
.9990
**8U.U000
.9997
.9997
• *** /
• 9990
• ***P1
• •P'P'P'5
• 4**0
. *9*H
. 9996
3040.UOOO
.uooo
. 90 7*
• *rtbb
.9096
• **»|0
• **U «
• **V*
• **vi
,.44lb
TABLE B42 WINTER
CONTRIBUTION TO PCFLOS (A.H) OUE TO LOWER CLOUDS WITH BASE HEIGHT AT H.
HIMETERSI
lO.OEu
*4 OEG
JU' UFO
40 utu
60 OtG
64 btb
70 UtG
oO UtG
'4b otl»
*0.UOOO
1 .OObb
l.UOOU
l.uooo
l.UOOU
1.0000 ,
l.Ouun
1 .OUOO
I.UOUO
l.uuub
7O.U000
1.0004
1.400b
1 .UUOO
1 .UuUO
-■* l.oOuO
l.uuuu
l.UOOU
1 • UOOO
1•UU04
lou.uuoo
.9996
.994 7
• ***/
• ***b
• ***b
.!944~
• ***b
• ***M
.944b
isO.UUOO
l.OUbO
1.0000
I.UOUO
l.UOOU
l.UOOU
l.uuon
l.uuuO
Uuooo
1 ;ouob
♦04.UUOO
.961*
.4664
• * 70*
• */34
• *7bU
. 9 766
7b<*
. * 7bb
.4766
sou.uooo
.7*94
.77**
• <50 4 1
• a* J4
• 3361
.6*14
• b4b«
• b4* l
. 684 3
I*8U.UU(|0
.94 13
.4|»*
• ***4
• vjbi
• *J**
.9** 4,
• *** Jb
.*44b
,4*81
170U.U00U
. 96**
.466 7
.'*»**#'
• ***rt
.991)1
• **0 J
.9408
?*8u.uooo
.996,
. 9463
. ***»•>
• **b 7
• **b*
• 496 *
• **bn
• **b«
.4966
JObu.UbOO
,9976
,9460
• **0*
• ***3.
• ***.!
.994)
B***J
.*** 1
l.uuub
B—15
•
'
NSWC TR 78-142
•
PINT (A,H| TABLE B43 SPRING
CONTRIBUTION TQ P-FLOS (A>|) DUE TO LOWER CLOUDS WITH BASE HEIGHT AT H.
LOCATION V
KIME'ERSl
10 0£(.
dQ 0E(>
jo vlb
40 ok b
*1 L»tl>
8u l»t'»
7 0 uto
80 (Jtl>
*U Utb
23.0000
.Obi a
.9 822
• *cv4
% y*ir'a
• ‘nr'
• 4O£0
• *rt^t>
.9bc8
• *Otf?8
73.0000
1.0000
1.0000
1 *0000
1 • 0 0 00
i • 0'»0 0
1 6 UUUli
i . uuuu
1.UUOU
i.ooou
"
160.0000
.9822
. 9829
• 98 J*
* 40 J0
• -»14l>
. 98* 1
• *04^
* *04^
• *041
250.0000
• *3*j0
• *40*
• 44 W
• *40 l
• *4*>0
• VvO t
• *wo
.9*71
*50.0000
. 79*0
.5116
• 02 32
• 341-3
• rt i 7 0
• >iJ ye
• 04U*
• 0416
.8*21
tsuo.ou 00
.7122
. 7*6*
• /00^
• f 0.1 /
0 / y jw
• r *'r
• 0UU4
.aOt 7
.8037
1260.oooo
.9721
.97*9
• *
. 9 / 6 I
• Wo*
.9/9 1
• »/*3
• * 7*n
• *7*6
1760.0000
.9982
• **04
• **»>*>
• ***0 7
• 4*8 /
• 4*0 /
. 99o/
.998/
2260,0000
.9963
. 9960
• 99 7 0
#4*/j
.9-/2
* 4y(f
, 99/3
* *V 7 J
• **/4
| 3000,0000
.9839
.937/
• *0*0
• *0**5
• **0*
*4*0"'
• * «ot»
. 99u 7
.9910
TABLE B44
SUMMER
CONTRIBUTION TO PCFLOS (A>4> OUE
TO LOWER CLOUDS WITH BASE HEIGHT AT H.
H(METEAS)
10 Otii
’0 IJLO
JO
4 0 ’Ol <t
4( Jc ■>
#>U l^t 1
7 w Ktb
at ut<i
90 Utb
26.0000
• .9b3U
•*H04
• *0^8
• *0S 7
• # 0*7
.933/
.9837
,985/
73,0000
.99/3
. *9 79
# 4* ? *
• 4 * 04 /
• 4 * 73 //
• 4*10
• 4>#O0
• **oC
.9930
130.0000
.9903
.991*
* 4* 1 /
• -***0
• 4 4<r<r
• -#*«r j
• **£J
• **c J
.**^4
250.0000
.9722
• * 1 $6
* 4/40
• * 7 18
• f?K>C
• Wb j
.9/06
.9766
.9/86
*50.0000
. 82*3
• 04 £0
• 00-p4
• 40 J-3
• 1*0 7
. 3/13
.8725
* 8 7 58
.8 7* J
j
000. 0000 ,
.7518
, 73 77
• 01 44
• 0^*4
• *1 3 4/-
• 444*
• 04 7 8
• 8900
.0313
1 <"->0,0000
.9903
• #*<?0
.9912
• #v 3"
• '# #4/*
• •«**•>
. 99*6
• V*4 /
• **40
1730,0000
.9938
• *^6<r
• *v$4
• wo*
• 4**e>f>
* # #b 7
• **o 7
.9967
.996/ ’
2250.0000
.9966
. 9938
, **97n
• **/J
• #4
. 99/3 •
.9973
6**7 J
.99/3
3000,0000
.9826
• *044
• *004
.9368
• yti f u
.9871
• *a/c
,9a7a
TABLE B45
WINTER
1
CONTRIBUTION TO *CFLOS (AX) DUE TO LOWER CLOUDS WITH BASE HEIGHT AT H.
.
H(METEAS)
10 ue>>
20 oeo
Ju Ufc>
40 UtU
*0 Utl>
6 17 i/t r.
70 iltli
8i
VO Lȣb
.
23.0000
1.0000
1.0000
1 • Ou (J 0
1 . ouoo
i.QOuO ‘
l.OOO/i
1.000(7
- 1.0000
i.OuOu
73.0000
.9992
.999 2
* • *****
• ***<»
• ****
• **V*
• ***<?
.9992
• ***<
130.0000
.9966
■ .9969
• 99/(7
. .9971
. 99 72
.99 7 J
.9973
« 99 7 J
.9973
230.0000
.96 30
• *6S*
• 9677
.9891
.9700
.970 1
.9/06
.9/07
.9/08
*30.0000
.7712
. 7936
• an*
.8232
.3 306
. *Jj9
• 0 Jb6
• oj/J
.8381
O00.OU00
.6913
.7317
.7/82
• 7 H *••
• / *32
. /96l
.801 1
. 8026
1230.OO00
*****
• **j^
.-»92l
.99 2 /
• **Jt
• 4*i J
♦ ** 14
• **Jl
• V*.ii>
1 730.0000 .
.0971
. *73
• ** / /
. .99 78
.9979
• **#*
• **80
• **80
.9980
223O.O000
. 0930
• * - 1
• **H J
• **f> J'
• V**3.t
• **0J
• *483
• W8J
3000.OO00
.9923
. **J.
• ** J0
• *#40
• **4«r ,
• * *4 |
• **4j
• **44
• **43
B—18
:
NSWC TR 78-143
APPENDIX C
PCFLOS (Aj. H|» AND PCFLOS (Aj)
C-1
NSWC Tfl 78-143
PCFLOS (A,H) TABLE Cl SPRING LOCATION 2
PROBABILITY OP CLOUD-f NEE LINES-OP-EIGHT, PROM THE SURFACE TO GIVEN HEIGHT H.
HEIGHT H
i U 1 111 IT
2'J liH>
JO Ubo
«►<( ufc*J
yg >tiT
60 Ut(*
70 uta
60 Utfs
YU Ut b
(METERS)
so• uooo
. uvph
» ^HV
• 9-v90
• yyyu
• yyyi
.yVyj
.9991
-yyyl
. yyy i
l oo ,ouoo
. 49**2
• yyh7
• 44 /J
• yy /*
• *9/6
• 997s
.99/6
*94 76
.557?
200.JOuft
o'lpiV
.9022
•
• YOTA
• yrtsu
• 90 b 3
• 4654
• 9885
, .5858
3U0.UOOO
.9c?c
• ^ ^ 1 AT
• 9J/H
• V«|4
• y*4U
• Y4W
• 9450
• V4o3
.5*67
sno,uogo
• <i0 U
, 029 1
*03«0
• rt088
• 0093
.H/te
.0729
.8/J8
1 oou.0000
m 7m4**
, « /H«iH
• oo^ 1
• 02 1 2
• h3uM
• 7*J6|
.6467
• d4oa
• O+iit
1 dOu # uuito
• 72s 1
* /* >i»
* /4yi>
« Huyu
• JivJ
• 025 1
• 6279
.0302
.8318
? 0 *JO. good
. n f*
•
. /c/i
.00 34
*0140
.*20/
.624 6
• 6261
• nett
?suu,i/unn
.7 1M
• /•*««
• /««s2
* 0U<?*
• Ol Ji
• M14J
.6224
.024 8
.57b»
3500#ot)f»0
• 7294
• /o» 1
• /021>
./VJJ
. /yy/
.00 29
• 6066
.8105
TABLE C2 SUMMER
PROBABILITY OF CLOUO-PREE LINES-OP-SIGHT. FROM THE SURFACE TO GIVEN HEIGHT H.
HEIGHT H
1 ii ut o
20 Uffc
Jo l;tO
4 </ u fc o
. -5U l>tv»
ou ukO ‘
70 Utl>
60 l}t&
VO UtG
(METERS)
50.UUOO
• vvy*
• *94/
.9990
• yy va
.yyyn
.yyyb
.9996
.5558
ioo.uooo
,5955
.94*4
.990/
.9964
• vv/o
• yy7|
.ton
.99/2
• ooti
ZOO.UUOO
.UMWJ
.9913
»
.9436
• #440
• 444 1
.yy*5
.9946
.0 0*1
JOO.UOOO
.5*7/
• 94*0
.9614
• YOSJ
.9b/J
.9066
.5851
.9696
.9655
(.0U.UU00
.5 7*0
• ■‘>94 7
• 4u v.
• *100
.924*9
• *426u
• ottb
• 9290
• ooos
loou.vooo
.8307
• DSh6
• o '/ 9 0
• 04</0
.09/5
• 9014
• 00 JO
• 9069
■ ,vub7
1500.uuoo
.8<!0J
.»490
• a / i 6
• B0*O
.0910
.69b/
• oo to
.9000
.5008
?ooo.uooo
.815*
. 04*9
*
• dr \2
.H80b
• 0904
.8 VS 7
.09 70
• 000>
?500.u000
.8115
• «*4'20
.HH-jb
.0/06
• oH 3 y
.0909
•ayJi
.6964
.0003
3500 .uuoo
.7B7!8-
.04*11
• 6464
• 0044
• 0723
.0/tb
• 0000
• 6664
• OOOb
TABLE C3 WINTER
PROBABILITY OP CLOUO-PREE UNES-OF-SIGHT, FROM THE SURFACE TO GIVEN HEIGHT H.
HEIGHT H
(METERS)
ill OFO
20 .»66
JO ui<s
40 Ut9
bO Ut6
OU Utl.
to (/to
80 UtG
50 utl*
50*0000
• 9Vy 7
.y9«H
• 9999
. 9999
.9999
. . yyyv
..94V4
.0000
.555V
100,9600
.49*9
.99/2
.99/6
• 9V/6 ,
.9977
.yy/»
.9976
, .oota ■
.5575
200.9000
.9**1
. 9/M0
• 90U /
.9618
.46 25
. YOiV
• 9641
.5843
.5834
JOO.UOOO
.91 74
.42**
♦ »364
.4412
• 44*|
. #*58
4 9466
• ootb
,5*75
606.0000
, 76OH
• /HmS
#a0*i2
• 0£29
• 6317
.yj»y
.6397
.8*40
• Ob'iO
1900.9000
• 66 >4
./10m
. /a»44
• 7680
. / / / J
. 78**1
• 7669
. 754?
.7538
150O.U0U0
• 44 it
.o9/»2
. 72^6
• /608
• 763/
• trio
.7789
. ’to*
.7805
2000.6000
.6317
• oh-tj
• /t 1+
• /M*>9
• /r>y j
• tblo
» /7iV
. 7 755
.11 to
2500. OO’OO
.62/9
• SHill
• /!/<<
. /*• i M
. /
• #8311
“ W 76 / 8
• 7711
• Itib
3600.9000
*C»6 (i|
• /U2H
• /<•**
C-2
• /•» Ji
. #51*
• /86* ’
.7iii/7
. 7*jv
NSWC TR 78-143
PCFLOS (A,H) TABLE C4 SPRING LOCATION 9
PROBABILITY OF CLOUD-FREE LINEi-OF-SIGHT. FROM THE SURFACE TO GIVEN HEIGHT H.
HEIGHT h
(METERS)
10 Of o
20 tn u
JO i>tt«
40 UtO
30 Otb
©0 MtCi
70 Utb
60 OtG
VO oeg
*0*0000
.9899
.9898
• 9 **0 0
• 9902
• 9902
.9902
• 9902
.9002
! OjU . tt 0 0 0
• 9887
.9H9Q
• 9893
.9H95
.9696
• 9696
.9698
.0695
200*0000
• 964 J
.9©M
* 9 © 7 J
• 9©«*
• 9889
• 9891
• 9692
• 9693
•9.9*'
30O*00l)0
.86*0
• 6769
. 68* b
• 8859
• 8886
• 8695
• 6901
• 6906
.6907
60U.U0QO
.67^5
• ©98 7
»/lh5
. 7*rt8
. / Jo 7
• 7401
• 7419
• 74 J7
. /**3
1000.0000
• 5 7 7U
* f» 154
* o «*2 J
• 8800
• 6712
• 67©*
• ©791
• 6620
.6.29
1500.0000
.351 0
.00 17
• Ojrt*
*84 8.8
• ©6o7
• 6663
• 6691
• 6721
.6/31
2000.JOUU
• 5**Hl
.0*05
• O 2b*
* 6 J9 7
• 8520
• 6578
• 6606
• 6640
.6660
2500. uooo •
.5359
• OHIO
.0119
• OJ*l
• 8446
• ©all)
• ©540
• 65# J
.660*
3500.0000
,4 99©
.5501
• 5645
• ot'88
• 622 7
• 6296
• 6J30
• 6368
.6397
TABLE CS SUMMER
PROBABILITY OF CLOUD-FRES LINES-OF-SIGHT. FROM THE SURFACE TO GIVEN HEIGHT H.
HEIGHT H
(METERS)
.o nio
20 \)t%»
JO uto
40 L>t©
50 Utb
60 L>tti
/0 UL6
60 DtG
00 UfcG
bu.UuuU
• 9995
.9995
• 9995
.9995
• 9995
.9995
• 9995
.9995
.9005
100.UU0O
.999*
.9992
• 999 J
• 999 J
.9993
.9993
.99*3
.9993
.0093
200 .uuu«
.9951
.9965
.995 7
.9938
• 9959
• 9959
• 9960
• 9960
.0060
30U.0UO0
• 9748
.97 72
.9787
• 9/99
.9605
• 9609
• 9610
• 9612
.0613
600.0001.
• 8499
.6726
• 6905
• 9002
• 9059
• 9097
• 9117
.9134
.91*0
lOOO.OOUO
• 7 344
V 7 765
• 0070
• 8244
• 6349
• 641/
' .6452
• 6464
.6*0*.
1bOO.UOOO
.7186
.7620
• 7950
• 61J4
• 6*45
• 8315
• 6352
• 6365
.6306
2000.OOuO
• 70 76
. 7525
• 76*7
• 8056
• HI 73
• 8246
• 6264 ’
• 6319
.6330
2 b 0 U.u 0 o 0
.69*1
. 7 390
• • / /4©
.794 7
• 6068
• 6144
• 6164
• 6220
.6232
3500.0000
• .6285
• 6639
. 7271
.7529
. 76 79
. 7 7 7 1
.•7616
• 7662
. /601
TABLE C6 WINTER
PROBABILITY OF CLOUO-FREE LINES-OF-SIGHT. FROM THE SURFACE TO GIVEN HEIGHT H.
HEIGHT H
(METERS)
in un*
20 Dfcb
JO UtH
40 OtO
bu UEo
©0 UtG
70 Otl»
80 UfeG
VO UEG
50.0000 '
• 994 1
.9942
• 994*
, .9943
, .00**
• 9944
• 9944
.00**
.Vo**
100.0000
• 9** I 4
• 991 7
• 9916
• 9919
.9920
• 99*0
• 9920
.0020
.0020
20O.00O0
• 9414
• 94 3 j
• 9445
• 9454
10*62
•9404 ’
• 9464
.0*65
.0*65
300.0000
• 79tvb
• 604 0
• 60©3
• 6119
.61*/
• 615*
• 8156
• 6136
.6150
©oo.ovoo
.46*9
.49**
.5108
‘ -• 5*50
.53*6
•5J/9 ’
• 539?
.5*13
.5*10
1000.0000
• 3255
.3694
• J9©2
• 419J
.*332
• 4363
• 4411
.**36
.***6
ISOU.OOflO
• 3095
.1553
• jos2
• 40 70
.*216
• 4*70
• *•299
.*32 7
.*336
*uoo.uoun
• JO 4 9
• J5|*
• J815
• 4t) <5
.*163
• 4*37
• 4*66
.*205
.*305
'?5UO,UU«0
• 29 7 J
• J449
. 3 / 5 *
.39 7/
.*12/
• 4 163
»4«i3
.*2*2
.♦253
3500* 00uO
.2911
• J *•#*
• 3 765
• 39.4/
' .*060
- *414©
.41 76
.*2ob
.*222
NSWC TR 78-143
PCFLOS (A,H>
PROBABILITY OF CLOUD-FREE LINES-OF-SIGHT.
TABLE C7 SPRING
FROM THE SURFACE
TO GIVEN HEIGHT H.
LOCATION A
HEIGHT H
(METERS)
10 DEO
20 DEG
30 0EG
4 0 DEG
50 DEG
60 DEG
70 DtG
60 DtG
90 DEG
SO.0000
.986V
.9872
.9873
.9875
.9876
.9876
.9876
• 98/6
.9876
100.0000
.9702
.9710
.9715
.4719
.9723
.9723
.9723
• 9726
.972*
200.0000
• 912S
.9162
.9185
.9203
.9218
.9221
.9224
.92*5
.9226
300.0000
.8167
.8255
• 8307
.8351
.8383
.8392
.8398
• 6403
.8405
600.0000
.4873
.5249
.5486
.5673
.5789
.5837
.5868
• 5890
.5900
1000.0000
.3442
.3977
.*319
.4581
.4739
.4809
.4655
• 4886
.4900
1500.0000
.2987
.3571
.3946
.4231
• 4402
.4479
.4529
.4663
.4579
2000.0000
.2931
.3520
.3900
.4188
.4360
.4439
.4490
.♦524
' ' .45*0
2500.0000
.2910
.3501
.3883
.41 71
.4344
.4423
• 4*73
• 4508
.*52*
3500.0000
.2829
.3433
.3622
.4117
.4292
.4373
.4*25
• 4460
.4*79
TABLE C8 SUMMER
PROBABILITY OF CLOUD-FREE LINES-OF-SIGHT. FROM THE SURFACE TO GIVEN HEIGHT H.
HEIGHT H
(METERS)
10 DEO
20 DEG
30 DEG
40 ueg
50 QEG
60 DEG
70 DtG
80 GtG
90 DEG
50.0000
.991V
.9921
.9922
.9*4*3
.9924
.9924
. V92*
• *924
.992*
100.0000
.9788
.9 79*
.9797
• *800
.9802
.9803
.9803
• * 80 i
.9803
200.0000
.8908
.8948
.8970
.8**0
.9006
.9009
.9011
.9012
.9013
300.0000
.7920
.8005
.6055
.80*9
.8131
.6138
.81*4
.8167
.61*8
600.0000
.4727
.505*
.5255
.5422
.5521
.6559
.5588
• 560 J
.5609
1000.0000
.3009
.351^
.3826
«4076
.4219
.4263
.4328
.4351
.4362
1500,0000
.25/1
.3116
. 3462
.3/32
.3888
. JvS7
.4006
.4032
.*v**
2000.0000
.2541
.3092
.3440
.3/12
. 3869
.3939
.3989
• 4015
. 402 7
2500.0000
.2521
.3076
.3426
• 3t>*9
.3857
.3926
. J9/6
.4004
. 40)6
3500.oooo
.2471
. 30 J3
.3388
.3865
.382*
.3896
.39*7 '
• J*/J
.3967
TABLE G9 WINTER
PROBABILITY OF CLOUD-FREE LINES-OF-SIGHT, FROM THE SURFACE TO GIVEN HEIGHT H.
HEIGHT H
(METERS!
10 DEG
20 DEG
30 DEG
*0 DEG
50 0£G
60 DtG
70 utG
80 * DtG
• -
90 DEG
50.0000
.9971
.9972
.9972
.9973
.997 3
.99/3
. .9973
.99/3
.9973
1,00.0000
.995*
.9955
.9956
.9957
•9958 ,
• 9966
.9956
• 9966
.9958
200.9000
.9665
.9678
.9686
.9693
.9697
• 9699
.9699
• 9700
.9700
300.OOOO
.8672
.8733
.8770
.8601
.8822
• 8826
• 8832
• 6636
.6836
600.0000
.5115
.5501
.57*3
.5933
.6045
, .6094
.6126
.6147
.6157
looo.oooo
.3507
.4062
.4416 '
.4686
• 4844
.491?
.4965
• 49*6
.5011
1500.0000
.2825
.3447
.36*5
.41*8
.4323
.440?
• 4461
• 4695
.4512
200U.0000
.2775
. 3402
.3803
.4108
.4285
• 4369
• 442*
• 4*66
.4*75
2500.U000
.2775
.3*02
.3803
.4108
.4285
.4369
.442*
• 4*b8
.4*75
3500.0000
.27*9
.3379
.3 782
.4089
.4267
• 4J6I ’
.4*86
• 4*41
.4*59
NSWC TR 78-143
PCFLOS (A,H) TABLE CIO SPRING LOCATION B
PROBABILITY OF CLOUO-FREE LINES-OF-SIGHT, FROM THE SURFACE TO GIVEN HEIGHT H.
HEIGHT H
(METE AS)
io oco
20 DEG
30 Lit9
40 Utb
90 Otb
80 UEG
70 OtU
do UtG
90 U£b
*0.0000
.0471
.94*2
.9487
• 9493
.9498
.9*98
.9*98
• 9498
• 9496
lOQ.QUOO
.4471
• 94«2
.448/
• 9493
.9448
.4*98
.9498
• 9498
• 9498
200.0000
• 022b
.*24 7
.4259
• 9269
.9278
.92 79
.9280
• 9280
• 9280
JOU.UOOO
• SI 29
• *212
.8265
• 6310'
.8342
.8350
.8397
• 8361
• 8363
600.0000
.4723
.*049
.9253
• *4 16
.5526
.5963
.5589
• *606
• *613
100U.U000
.2578
. J083
.3402
.36*6
.3818
.38/7
.3419
• 3948
• 39*8
i^OU.OOOO
.2472
• 290*
.3304
• 3*66
.3730
.3791
. 3833
• 386?
• 3672
2000.0000
.2445
, .2960
.J28*
• 3*4^
.3/08
.3/68
.3811
• 3860
• 36*0
2500.0000
.2389
• 2906
.3235
• 349*
.3662
.3723
.3766
.37#*
• 380*
3*00.0000
.2271
• 260*
. 3142
• 1410
.3579
.36*3
.3687
• 3/17
.3729
TABLE C11 SUMMER
PROBABILITY OF CLOUO-FREE LINES-OF-SIGHT, FROM THE SURFACE TO GIVEN HEIGHT H.
HEIGHT H
(METERS)
10 DEO
20 Ofb
30 Utb
40 UtG
50 DLG
60 DtO
/U IJtb
00 UtG
. 90 U£b
9U.UUU0
.8843
.88*7
.8879
• 8891
.8903
• 8903
.8903
.8903
.8904
IOU.UUOO
.8819
• 8640
.8892
.686*
.8877
.8677
.8877
.88/7
.8877
200.UOOO
.8297
• 6 JO 1
.8325
• 8J47
.8367
• 836V
• 8369
• 83/0
.6371
J00.U000
. 70 W
.7137
.7198
.7252
.7296
• 7J03
• 7306
• / J* 3
.7316
GOU.UUUO
.4318
.*800
.4775
.4916
.5015
• *044
• *063
.*0/7
• *002
1U90.UU00
.3244
• 3616
• 3892
• 40 36
.4159
• 4201
• 4229
• 4248
.42**
Ivjo.uuoo
.3148
• 3*31
.3776
• 396*
.4042
• 413*
.416*
• 4|84
• 4191
2U0U.UUO0
.3097
.348*
.3732
.3923
.4091
.4094
• 4 124
.6144
.41*1
?-»ou.uuoO
.3030
• 3426
. 3678
.38/3
.4003
• 404H
• 40/8
.4099
.#106
3S0O.UUU0
. .2688
. JU6
.3403
• 3622
.3764
• 3817
• 38*1
• 38/*
• 3686
PROBABILITY
TABLE C12- WINTER
OF CLOUO-FREE LINES-OF-SIGHT, FROM THE SURFACE
TO GIVEN HEIGHT H. •
HEIGHT H
(METERS)
10 OlU
20 Of 6
JO Utb
4 0 utb
SO Otb
60 UtG
/0 UtG
80 Utb
90 Utb
:>0.UU00
.9532
.9*42
.9*4/
.9**1
.4996
.9556
• 9**6
.9**6
• 9**6
luo.oooo
.9629
.9*3*
• 9*39
• 9*44
.9549
.99*4
• 9*49
.9**9
.9*49
IOU.UOOO
.4380
.939*
• 94U2
• 9410
.#417
.9*17
• 9417
.9417
• 9# 1 /
JOO.uugO
.849/
.8*23
• 8*6 J
.8*9/
. 861J
.8629
• H6JJ
• 8637
• 6637
bOO.UUOO
.4276
• 4646
.4676
. *06*
.9186
.5229
• *2*9
.*280
• *206
looo.uuoo
.222 J
• 2763
• 3106
• 33/*
. J54#
.3613
• 3668
• J680
• 3/01
1900.UUOO
.2144
.269*
• JU40
• JJiS
.3*89
. (959
• 4600
• 3631
• 3664
?oou.ouoo
.2149
.2692
.3037
• 3312
. J*»7
.395?
• 3*98
• 3629
• 3642
2500.U000
.2123
.2671
• 3016
• 3292
. 3*67
.353 J
• 3*78
• 3609
.3622
3900.0000
.2094
• 2646
. 299 J
.3271
.3**7
.391 3
• 3**9
• J*90
• 3604
NSWC TR 78-143
PCFLOS (A,H) TABLE C13 SPRING LOCATION C
PROBABILITY OF CLOUO-FREE LINES-OF-SIGHT. FROM THE SURFACE TO GIVEN HEIGHT H.
HEIGHT H
(METERS)
10 OEG
20 OEG
JO OEG
40 Otto
60 OEG
60 ULG
70 OEG
BO OEG
90 OEG
50.9000
.9116
.9136
.91**
.9153
.9162
.9162
.9162
.9162
.9162
190.9000
.9101
.9126
.91 J5
.9144
.9154
.916*
.9154
.915*
.916*
209.0000
.8059
.88*7
.8902
.8916
.8929
.M930
.8930
.6931
.8931
300.9000
.8006
.8161
.820*
.8241
.8271
.8277
.8281
.628*
,6265
600.0000
.5670
.6963
.6147
.6292
.6388
.6*22
.6***
.6*62
.6*66
1000.9000
.3679
.*182
• ♦511
.4753
.4910
.497*
.5013
.50*5 .
.5056
1500.0000
.3*58
.398)
.*323
.4575
.*737
.460*
.**»*
.*878
.4691
5000.0000
.3388
. .3916
.4262
.*516
.4680
.47*7
.*788
.*822
.4635
2500.0080
.3270
.3808
• 4l6l
.4*19
.*586
.465*
.4696
.4730
.*7*4
3500.0000
.2991
.3559
.3930
.*203
.*377
.***9
.4*93
.*529
.45*6
TABLE C16 SUMMER
PROBABILITY OF CLOUO-FREE LINES-OF-SIGHT. FROM THE SURFACE TO
GIVEN HEIGHT H.
HEIGHT H
(METERS)
10 OEG
20 OEG
30 OEG
*0 DEG
50 OEG
60 OEG
70 OEG
60 OEG
VO OEG
50.0000
.8316
.8351
.8369
.8386
.8*03
.8*03
.8*03
.6*03
.8*03
100.0000
.8308
.83*3
.8361
.8379
.8396
.8396
.8397
.8397
.6397
200.0000
.7916
.7965
.7991
.8015
.8039
.80*0
.80*1
.80*1
.80*1
300.0000
.687*
.697*
.7031
.7082
.712*
.7130
.7135
.7138
► 7139
600.0000
.*123
.4*0*
.4577
.4717
.4819
.4645
.*864
.*877
.4662
1000.0000
.2588
.2995
.3253
.3*53
.3591
.3635
.366*
.3665
.3693
1500.0000
.2516
.2930
.3193
.3396
.3536
.3681
.3611
.3632
.3641
2000.0000
.2*90
.2915
.3*79
.3383
.352*
.3569
.3599
.3620
.3629
2500.0000
.2**3
" .2865
.3132
.3339
.3*62
.3528
.355 7
.35 79
.3588
3500.0000
.2203 .
.265*
.29*1
.3162
.3312
.3362
.339*
.3*16
.3*29
TABLE C15 WINTER
PROBABILITY OF CLOUO-FREE LINES-OF-SIGHT. FROM THE SURFACE TO GIVEN HEIGHT H.
HEIGHT H
(METERS)
10 OEG
20 OEG
JO Otto
4 0 UfcG
■50 OEG
60 OEG
70 01Q
09 DfcG
98 UEG
50.0000
.959 7
.9606
• 9610
• *614
.9618
.961*
• 9610
•9610 ’
.9*18
'100.00)0
.9597
.9606
• *610
• 9614
.9618
.9618
• 9616
.9610
.9618
200.0000
. .9366
.93*5
.*394
• 940 3
• 9» 10
.9*1)
• 94t|
.9412
.9*12
300.0000
.8665
.6 725
• 6761
•0 79*
.8*15
.*820
• 60*4
• 00*7
.8828
600.0000
.5496
.58*7
• 6074
• 6*46
.6356
.8*00
• 64*7
• 6460
.6*59
1000.0000
.34 75
.*050
. wv
#4/Ob
.48 76
.*95)
• 499b
• b0J3
• 59*9
1600.0000
.3321
.3912
• *J0J ,
.4666
.*761
.*8J9 1
•4004
• 49*4
.49*9
2000.0000
.3293
• J8*7
• **H0
• 4b64
.* 7* |
.4819
• *064
• *904
.4929
2500.0000
.32 75
. 38 72
• **66
• 466*
.*729
.4808
.409*
• 409J
.4*09
1500.0000
.31 12
.3722
• *J*b
• 6*17
.*598.
..679
.•4 7*b
• 4 766 .
.4 78*
C—6
NSWCTR 78-143
PCFLOS IA.H) TABLE C18 SPRING LOCATION 0
PROBABILITY OF CLOUD-FREE LINES-OF-SIGHT. FROM THE SURFACE TO GIVEN HEIGHT H.
HEIGHT H
(METERS)
10 DC6
20 016
30 0E6
40 0E6
50 0£5
6” cce
70 0E6
60 DtS
90 UE6
SO.1)000
• OSAO
.9691
.9692
.9693
.9895
.9*95
.9*95
.9895
. 9695
100.UU00
• 9062
.9685
.9666
.9687
.9869
.9689
.96*9
.9869
.9889
200.0000
.9*11
.9617
.9620
.9823
.9826
.9826
.9*26
.9827
9827
300.0000
.9357
.9*03
.94 33
.9456
.9472
.9*76
.9*62
.94*5
.9*66
600.0000
.6575
.6893
.7102
.7258
.7355
.7396
.7*25
.74*6
. ,'*5S
1000.0000
.419*
.*789
.5189
.5471
.5645
.5727
.5776
.5616
.5634
ISOO.OOOO
.*307
.*622
.5035
.5326
.6506
.5591
.56*2
.5662
.6701
2000.0000
.3972
.*591
.5006
.5299
.5460
.6565
.5616
.5657
.sort
2S00.O0O0
.391S
.*5*0
.*959
.5256
.5436
.5525
.5576
.5617
.5636
3600.0000
.3660
.*31*
.4751
.5062
.5253
.63*2
.5396
.5439
.5*62
TABLE C17 SUMMER
PROBABILITY OF CLOUD-FREE LINES-OF-SIGHT. FROM THE SURFACE TO GIVEN HEIGHT H.
HEIGHT H
10 OEb
20 DEO
30 U£6
*0 UEt>
50 Dtl»
60 l>£(>
7b UtG
00 UtG
VO uto
(METERS)
50.0000
.9496
.9508
.951*
.9519
1952*
.9525
.9***
.9*2*
« V525
100.0000
.9*96
.9506
.951*
.9519
.952*
.9525
• 95*6
.9*2*
.9525
200.0000
.932*
.9340
.9349
.9367
.936*
.9366
• 9J6*
.930*
.'9365
300.9000
.86*9
.8699
.6729
.6/54
.6773
.8777
• 0700
• 0702
.8763
600.0000
.6090
.6362
.6540
.6669
.676*
.6767
• 6007
• 6023
.6629
1000.0000
.*288
.4797
• 5145
.53 78
.5527
.6596
• 66J6
• 6607
.566!
1500.0000
.*196
.*718
.507*
.5313
.5*66
.5537
.6 6 7 7
• 66b9
.562*
2000.0000
.4176
.*703
.5061
.5300
.5*5*
.5625
• 6666
• 6690
.5613
2500.0000
.4111
.*6*0
.5002
.52*4
.5399
.5*71
• 661 1
• 6*44
.655V
3500.0000
.3866
.**31
.*6)6
.50 76
.52*0
.5317
• 6 Job
• 6J94
.5*16
TABLE C18
WINTER
PROBABILITY OF CLOUD-FREE LINES-OF-SIGHT. FROM THE
SURFACE TO
GIVEN HEIGHT H.
,
HEIGHT H
10 oco
?0 0(0
JO DC*
40 utb
50 UtG
60 UtG
7b UtG
Ob UtG
VO Ult»
(METERS)
50.0000
.99*0
. .99*9
.99*9
• 9960
.9960
.9960
• 9900
• 9900
, .**60
100.0000 ,
.99*6
• 99*9
• 9960
.9960
• 9469
• 9900
• 9900
• V*6«
200.0000
• 9930
• 99 U
• 99J4
.9936
• 49J*
• 99 JO
• 99JO ’
.**36
300.6000 '
.94*6
.9**7
.9**4
■ .9*/*
.9590
.9*9*
• 9*94
• 9*02
.*•03
600.0000
• 6 J*0
• 66*1
• 6910
./09S
.7210
• //*/
• 7/0/
• /Jl J
. 7 323
iooo.oooo
. J6H9
• 47gO
' •60 Jj
.5236
• 6J2*
• 6 JOsf
.64JO
..5*5l
1600.0000
. J4M2
• •*10
••4949
.515*
.*24 t
• * JbJ
• 6 J* 1
.537-2
2000,0000
.. J449
.MSJ
• •40/
• 4 9 JO
.51*5
• *2 J4
ol^J
• 6 JO*
.5362
2*00.0000
. J4 1 +
‘ #4*M0
• 49|*
• .5119
• troo
.6116
.5337
3500.0000
. JJ *7
• •DM
• 4***
..4*66
• 5"6 7
• * 1 6«* ,
• **14
• K 20 7
• 520V
C—7
NSWC TR 78-143
PCFLOS (A,K> TABLE C19 SPRING LOCATION H
PROBABILITY OF CLOUD-FREE LINES-OF-SIGHT, FROM THE SURFACE TO GIVEN HEIGHT H.
HEIGHT H
(METERS)
10 OEG
20 DCS
30 DCS
♦ 0 OfcG
50 DEG
60 DEG
70 DEG
80 DEG
90 DEG
50.0000
.9951
.9968
.9959
.99*9
.9960
.9960
.9960
.9960
.9960
100.0000
.99*? '
.9958
.9959
.9959
.9960
.9960
.9960
.9960
.9960
200.0000
.9937
.9939
.9939
• 9940
.9941
.99*1
.99*1
.99*1
.9941
joo.vooo
.9730
.975*
.9763
•« 97?1
.9776
.9778
.9780
.9760
.97*0
600.0000
.7723
.7929
• 6065
.8163
.8275
.8252
.8268
.6282
.8268
1«««.01)90
.*769
.6304
.5670
• 5918
.6077
.6150
.6193
.6228
.62*4
1509.0000
.4*73
.6042
.6432
• 5695
.6864
.59*2
.6966
.6024
.60*1
2000.0000
.4*05
.4978
.6371
.5637
.6807
.6886
.5930
.5969
.5966
7500.0000
.4335
.*913
1 .6308
• 55/6
.57*7
.6626
.5671
.5910
.6927
3500.0000
.4214
.4811
.5215
.5497
.5*71
.5752
.6799
.5838
.586*
TABLE C20 SUMMER
PROBABILITY OF CLOUD-FREE LINES-OF-SIGHT, FROM THE SURFACE TO GIVEN HEIGHT H.
HEIGHT H
(METERS)
10 OC6
20 DEG
30 DEG
*0 DEG
60 DEG
60 DEG
70 DEG
60 DEG
90 DEG
50.0000
.996*
.9984
.9965
.9965
.9965
.9985
.9965
.9985
’ .9985
100.0008
.998*
.9984
.9985
.9985
• 99C5
.9985
.9965
.9985
.9985
200.0000
.9979
.9980
.9980
.9980
.9961
.9961
.9961
.9961
.9981
300.0008
.9921
.9926
.9929
.9931
.9933
.9933
.9934
.9934
.993*
606.0006
.85*7
.6759
.6912
.9003
.9058
.909|
.9107
.9124
.9130
1000.9006
.6706
.72*3
.76*1
.7869
.8063
.6068
.6125
.6166 '
.6164
1500.0000
.6626
.7176
.758*
.7618
.7955
.80*3
.6061
.8125'
.6142
2000.4000
.65*7
.7104
.7516
.7753
.7892
.7960
.8019
.6063
.8061
2500.0000
.6467
. 7032
..7*50
.7690
. 7831
.7921
.7960
' .8004
.8022
3500.OOCO
.6266
.6872
.7307
.7572
.7720
.7613
.7655 ■
.7900
.793*
TABLE C21 WINTER
PROBABILITY OF CIOUO-FREE LINES-OF-SIGHT, FROM THE SURFACE TO GIVEN HEIGHT H,
HEIGHT H
(METERS)
10 deg
20 0(6
30 DCS
40 0C6
60 DCS
60 DEG
70 DCS
60 0E6
90 DCS
50.0006
.9954
.9961
.9952
.9952
.9953
.9953
.9963
.9963
.9953
146.6006
.99*9
.995 3
.9951
.9951
.9962
.9962
.9962
' .9962
.9952
200.0006
.9928
.9931
.9932
.9934
.99,?5
. .9935
.9935
.9935
.9935
300.0996
.9668
.9692
.9707
.9720
.9 72
.9730
.9733
.973*
.9735
609.0006
.7170
.7410
.756*
. 7663
. 7757
.7 786
.7809
• 762*
. 7830
1000.9000
.4239
.*817
• 5203
.54 78
.56*8
.6 728
.6779
.5616
.5832
1500.0006
.4086
.*686
.5087
.6371
.5547
.5630
.6662
.5721
.5736
2000.6000
14962
.4664
.5066
.5352
.5528
.5612
• 566*
.5703
.5720
2500.9806
.399*
• *603
.5011
.5299
.6*78
.5662
.6615
.5*54
.56 72
3500.9000
.3867
' .4*67
.4906
.5206
.5386
.6*75
.6629
.5609
.559*
C—8
NSWC TR 78-143
PCFLOS (A,H) TABLE C22 SPRING LOCATION I
PROBABILITY OF CLOUO-FREE LINES-OF-SIGHT. FROM THE SURFACE TO GIVEN HEIGHT H.
HEIGHT H
(METERS)
10 DCS
20 DEG
30 DEG
*0 UEG
50 0E6
60 OCG
70 DCS
00 0E6
90 UEG
50.0000
.9917
.*#978
.9978
.9979
.9979
.9679
• 9979
.9979
.9979
100.0000
.9961
.9963
• 9968
.9965
.9966
• 9966
• 9966
.9966
.9966
200.0000
.97*7
.9758
.9768
.9769
.9773
• 9774
•97 74
,911k
.9/73
300.0000
.0090
• 6944
.8977
.9006
.9025
• 9030
• 9038
.9037
.9030
600.0000
• 351*
• 5910
• 6161
.6356
.6*71
• 6524
• 6559
.6502
.639*
1000.0000
.3006
• 4419
• 4816
.6100
.3277
• 5362
• 5414
.3*30
.3*69
1500.0000
.3292
.3958
• 8390
.*7117
.*809
• 4982
• 5039
.3070
.3097
2000.0000
.3220
• 3901
.8339
.*630
.*0*3 '
.4937
• 4995
.303*
.3033
2500.0000
.3213
• 3687
• 8328
.*6*6
.*031
• %92S
• 498J
.3022
.30*2
3500,0000
.3173
.3853
• 6298
.*617
• 200 3
• 4697
• 4956
.*995
.3013
TABLE C23
SUMMER
•
PROBABILITY OF CLOUO-FREE LINES-OF-SIGHT, FROM THE SURFACE TO GIVEN HEIGHT H.
HEIGHT H
(METERS!
10 OEb
20 OCtt
30 UEG
*3 UCO
30 DCb
60 DC 6
70 ute
00 DEG
90 UEG
30.0900
.9950
.9952
.9933
,.995*
.995*
.9955
.9955
.9935
.9935
100.0000
.9066
.9669
.9072
.9073
.9075
.9075
.9073
.90/5
.96 76
200.0000
.9170
.9209
. .9226
.92*1
.9253
.9255
.9257
.9230
.925*
300.0000
.7993
.0091
.0150
.0200
.023*
.02**
.0251
.0236
.0257
000.0000
.♦731
.51*7
.5*10
.5616
.5739
.5792 ,
• 5'i28
.5031
.5061
1000.0000
.3130
.3762
.*151
.***2
.*613
.*69*
.*7*6
.*77,9
.*795
1 *00.0000
.29*6
.3571
.39 75
.*2 7 6
.*•52
.*336
.*590
.*62*
.*6*1
2000.0000
.292*
.3533
.3961
.*26*
.***■
.*325
• *560
.*613
.*631
2300.0000
.2913
.35*5
.3953
.*256
.**33
.*318
.*573
.*60 7
.*62*
3300.0000
.2099
.3532
.39*2
.*2*7
.**25
.*310
.*3*3
.*600
.*617
TABLE C24 WINTER
PROBABILITY OF CLOUO-FREE LINES-OF-SIGHT, FROM THE SURFACE TO QIVEN HEIGHT H.
HEIGHT H
(METERS)
11» UM»
20
10 UEG
40 016
50 DtG
60 Utlp
7t DtU
60 l)Lb
90 OtO
SO.owoO
. 99*0
• 9992
• 999 3
.¥¥¥4
.¥¥¥4
.9994
• 9994
• 9994
• 99V4
too .0000
• ¥*44
•♦*¥46
.9930
.¥¥52
• 9952
.995 3
• 995J . ■
•.9*5 J,
.9963
20O.OOO0
• 95h4
• ¥60 J •
• 961 J
• ¥623
• 9629
• 463 |
.96 32
••*6 33
.9633
300.W900
.85 7*
• 666 7
.0720
• 6766
.8792
• 8603
.66 10
.66 1 5
• 6616
600,9000
• 6 J 74
■ .5835
.6(3*
• 6 354
• 6483
• 6547
• 6566
• 661 3
• 6426
1000.9300
• 40 | U
.4617
.30*3
• 5J40
.5512
• 55*9
.5651
• 5608
.5709
1300.904,0
• 054
• 4045
•*•97 ,
• 4821
• 50 1U
.510?
.5165
• 5204
• 5226
2000.0000
.3319
.4014
. 9*60
• 4 794
• 4*84
• 5081
.41J¥ .
.5179
• 5202
2300.0000
. JJ19
.4014
• 9*66
.4/9*
• 4964
• 4061
.513*
.5179
• 5202
3500.0000
• 327J
.3973
.**31
• 4760
.6951
• 5049
• 5106
• 5148
.51 72
C-8
NSWC TR 78-143
RCFLOS (A^l TABLE C2S SPRING i LOCATION J
PROBABILITY OP CLOUD-FREE LINES-OF-SIGHT, PROM THE SURFACE TO GIVEN HFtOHT H.
HEIGHT H
(METERS)
10 UrO
?0 t)M>
♦ «» Ut'»
40 ur (>
311 Uto
bu Ut(p
i u ut.
ab 0t6
90 ’J£G
Su.uUoO
.041 4
.44| /
• 44 i 7
.y»2u
• 49*o
.9920
• 9920
.9920
loo.uuoo
.0«» 7
• 4AVI
• 4b*M
• <b<*3
.wf
• oba 4
.*Wl
• i»2?
.9.26
0
.44*1
13
■ ««9J
.**36
• M3*
.3*3/
300.U0u0
• H7m4
o«M«ob
• on* s
• OVI 3
. aVjj
• H444
.•Mi •
.«M$
.6**1
bOO.UUOO
• 800 J
• *4i)H
• / * .ib (
. r. jO
. /JJ9
• 7 Jbtt
.1*93
.2421
.1*32
1000.0000
.♦0| 7
• .01-*
• **/b
• bb**
,oOUJ
.60*4
.6131
.•166
.61*3
1 SOU•wuuO
• 1**4
• 4*SI|
. ♦YrR
• v»J
.3* (?
• Sb**
.SWI
.3633
.36.1
£000.0000
.37*7
• 4%%*
.♦two
ocu*
• 33.3
• 3460
.3636
.3316
.333.
-uouO
• ♦431
.♦bnu
p 31 ^
.331*
• >♦70
.3326
.3366
•33a.
3*00.wUgO
.3701
• ♦3*6
• ♦«♦ 1
• bi*H
.33*3
• *♦40
.3*9?
.3331
.9361
TABLE C28 SUMMER
PROBABILITY OF CLOUD-FREE LINES-OF-SIGHT. FROM THE SURFACE TO GIVEN HEIGHT H.
HEIGHT H
(METERS)
in t>t*
VO Ufft
JO l>to
4*J i/ttP
*0 DEI*
, bO Ot&
10 Utb
HU OtS
.0 otto
Sb.bbut)
• 01*1,0
.4/**
.9/6/
• 4//0
. 1112
.1/1 J
.1113
.31/3
.9/13
1 Ob. JUj<l
• 4S**
• «*)YU
. 4*4.0
• vniiu
.YftJR
.4*0%
• 4*41*
• 4*0*
• 4*0*
POU.JJOO
• bV.ii
.04*0
• 447*
• 6440
• YOU J
.4004
• 000*
• 400*
• 400*
JU0.OOO0
.7474
• bt'Bl
.rtl^7
• bl 34
• hI *4
• aiaJ
.*163
.*166
600.bU0b
.331*
.**♦•1
• 3«V4
pSYOl)
.6012
.niun
.6132
• *147
.•13*
1000 .bvOb
• 44b*
• 44 /* .
• ♦40<»
• 4*4* ,
. *6*11
.*13*
• 4/0*
.♦«^a
• 4*3*
1*00.0000
• tr\HC
• Ibt'H
• J/ /I
• ♦»•♦<
• ♦✓«<?
.•<* 7S
• 4J^U
• 4.ib*
• 44*4
pooo.oooo
.<!'•*
• J .1*9 7
• J 7 1*
• ♦ V0b
• ♦1 70
• ♦144
• ♦/V0
• ♦ J19
.*3'3»
^ioo.onoo
• 2/-*t'
• JIM
. J/
• ♦two
• «lnb
. 4<f4<?
• 4<bb
• 4 J1 7
.*J33
3SOW.UOOO
• <*7%M
• IVl
• Jb <1
. -*4/ J
.« ).J 7
• ♦sfli
• *23V
.*269
.440*
TABLEC27 WINTER
PROBABILITY OP CLOUO-PREE LINES-OF-SIGHT, FROM TIIE SURFACE TO GIVEN HEIGHT II.
HEIGHT H
(MITE RSI
1 •» Ul
V0 »f«.
l« ( <| 1-
♦ u lit**
*U a itl*
b W »>t i*
7 0 Utw
•0 Ut*
90 utb
30•b Ob Q
• 44*>M
. 44s->
. 44».P»
. P4*H
• •40*0
•44b*'
• 44**
1 00.0000
. <#W*I.
. fY.*
. »«*•••«
. 4 *#•*♦»
• 444b
• 4V4*
• 44%*
?oi , ..oo«0
• 4 7 l j
• > 7/'*
. it it
.*«%<•
. #/♦♦.
. Y 7* I
• 111!
• 4/*1
.9/33
lOU.UJuii
.01-u
• 41*4
• ♦•'!•*
* •» 4R
• *7Ri
.-*57
. *211
• »2/J
• 4*7*
*nn;uij«in
.*♦ 1 t
Vi /»%*
• r>*o /*
• ♦ , I »
. 1 6 n t
. / Jib
• 7 JJ*
. / J*2
1000 , UUK'i
aB| 1R
.4 7|%
• **l VP*
• * IH
• .*-,i
.3/6/
• */♦*
.3/6*
1 *0 0,1*0li4
1 !-♦
.•*'*97
»...•!
• *»*/
..HI
. .*•*/
• T» !*•♦
• Vlbb
• t>^0*
?01'0. Wt '1 ■» .
• 1 <1 ‘
■ 1**4 .
• .6 1
.. ..
P ♦'••••
a 1 . < »’•
• *»W4V
• >U*
• *J**
?*00.UO'*».
. J/* *•
.. i */*
• •*. , 7’
a •* 4.' 7
• ‘U 1
. iWt.U
.TI4J
1*0 0.0‘|tl«9
• IV 7**
. 1.6 6 '
• »ll ■
a ... J
6 . .« •
. »*3U 7
• '» a l»4
.31 Jl
C-10
NSWC TR 78-143
PCFLOS (A,H) TABLE C28 SPRING
PROBABILITY OF CLOUO-FREE UNES-OF-SIGHT, FROM THE SURFACE TO GIVEN HEIGHT H.
LOCATION K
HEIGHT H
(METERS)
10 DEG
20 DfS
30 UEG
40 u£G
50 DEG
6(1 UE6
70 OtG
80 DEG
90 DEG
50.0000
.0702
.9790
.9807
.9815
• 9019
.9821
• 9622
.9023
.9823
100.0000
.9766
.9783
.9793
.9801
. * 9005
.9807
• 9009
.9810
.9810
200.0000
.9501
.9525
.9540
.9553
• 9560
.9563
.9565
.9566
.9566
30*.0000
.0956
.9005
• 9034
.9050
• 90 75
.9079
• 9063
.9004
.9006
too.vooo
.6659
.6925
.7097
.7223
• 72t_
.7333
• 735«
.7360
. 7376
1000.0000
.6*96
.5045
.540*
.5660
• 5006
.5883
• 5926
.5957
.5974
isoo.ooao
.4050
.46*9
.5042
.5314
• 5472
.5554
• 5601
.5634
.5652
2000.0000
.3913
.4526
.4933
.5215
• 5370
.5464
• 5Sl2
.5547
.5566
2509.0000
.3067
.*407
.4099
.5103
• 53*6
.5435
• 5404
.5519
.5530
3500.0000
.3700,
.4421
.4841
.5133
• 5301
.5309
• 54*9
.5475'
.5498
TABLE C29 SUMMER
PROBABILITY OF CLOUO-FREE LINES-OF-SIGHT, FROM THE SURFACE TO GIVEN HEIGHT H.
HEIGHT H
(METERS)
10 OEG
20 0£G
30 DEG
40 UEG
50 DEG
60 UEG
7w Dtt
80 DEG
90 UEG
50.0000
• 99 S 3
.9903
.9983
.9984
.9984
.9904
• 9964
.9984
.9984
100.0000
.9934
.9937
.9930
.9939
.9940
.9940
• 9940
.9940
.9940
200.0000
.9613
.9o26
.9633
.9640
.9645
.9645
• 9646
.9646
.964 7
300.0000
.9039
.9077
.9099
.9110
.9131
.9134
• 9137
.9130
.9139
600.0000
.6004
.7106
.7245
.7353
.7416
.7443
• 7462
.74 72
.7477
1000.0000
.4373
.4099
• 5245
.5490
.5629
.5702
• 5740
.5775
.5789
1500.0000
.3916
.4495
' .4800
.5149
.5300
.5382
• 5632
.5462
.54 78
2000 .oooo
.3767
.4366
.4764
.5042
.5190
.5283
• 5334
.5366
.5303
2500.0000
.3729
.4332
.4733
.5013
.5171
.5256
• 6306
.5340
.5356
3500.0000
•.3622
.4240
.4650
.4937
.5090
.5184
.5239
.5271
.5290
TABLE C30 WINTER
PROBABILITY OF CLOUO-FREE LINES-OF-SIGHT, FROM THE SURFACE TO GIVEN HEIGHT H.
HEIGHT H
(METERS)
10 DEG
20 0€G
30 DEG
40 btG
50 OtG
60 DCG
/0 DtG
60 UEG
VO DIG
59.WO00
• .9978
..0940
• 0941
.9962
• 090)
• 000 J
• 000 3
.9964
• 0009
lOO.uOOO
.9956
♦ 0069
• 0061
.9962
• 9963
• 9**6 1
• 0064
..9964.
.0064
200.0000
.9692
.0706
• 0719
.9721
• 0720
.0/27
• 0/20
.9729
.9729
300.0000
.9090
• *|40
• 01/1
.9197
.0212
• 9214
• 0222
.9224
.0226
600.0000
.6906
.7170
• /)62
• 7462
• 7660
• /600
• /G19
• / 634
• /042
1000.0O00
.4370
• 4905
• 5262
.5506
.6666
.6/24
.57/4
.5803
.5010
llOO.UOOO
.15 7 7
• 4 | M4
• *6/0
• «H66
• •*0 J9
.511 /
• 6 1 00
.5202
.5220
2 0 U 0 • m'U 0 0
. 1405
.♦0 10
• 4* 10
.4 714
• 9 0«7
.9 00)
• 609 7
.5081
• 5100
2500.0000
. 1394
• •021
• 99 10
.4727
• *0<|O
• 5u*0
.5074
• 5009
1500.0000
.3249
• )0 12
• 9 360
.4644
• «H JO
.9019
• 90/*
• 5«u4
• 5«iJI
C-11
NSWCTR 78-143
PCFLOS (A,H) TABLE C31 SPRING LOCATION M
PROBABILITY OP CLOUD-FREE LINES-OF-SIGHT, FROM THE SURFACE TO GIVEN HEIGHT H.
HEIGHT H
(METERS)
10 Ofi*
DtG
30 DEO
4 0 Utb
bO Ot G
60 DEG
tO DEG
60 Uc G
90 DtO
*0.UOOO
.0052
.9665
• o8b7
.96b.
.9860
• 9000
• 9660
• 9600
• 9660
1 00,0000
.08*5
.0850
.0852
.98b 3
.9663
.9660
.9654
.9654
?0O.UU00
.9701
.971 /
.0 722
.9127
.4731
.9/3*
• 973*
.97 J*
• 9/3*
300 .0000
.9385
• *♦17
• 943b
.9*52
.9462 .
• *♦66
.*♦66
.*♦/0
* 94 70
bOO.UOOO
.7361
• /59V
./?4b
. 7662
.1 433
• 7V63
• 7966
•600|
• 6005
1000.UM00
.♦2*1
.♦639
.522*
• b522
«b608
• 5/60
.5635
• 56 76
.5690
I5uu.uu00
• 3*53
• ♦156
.4611
.*95 7
. b 161
• 6*69
• 53/*
,5369
?ooo.uooo
.3*32
.♦II*
• 4b73
.4923
. b 1 29
• 6**rt
• 5*9 3
• 53^*
• 5-159
?500 .UO00
.336b
• ♦0h i
.*5*5
.4897
• bl'O*
• 6<03
• ■>*69
• 5316
• 533b
3S0V.OU00
.33*1
• ♦06*
• *52B
.4664
. bt’42 '
.619^
.5*5/
• 5 Job
• 53*6
TABLE C32 SUMMER
PROBABILITY OF CLOUO-FREE LINES-OF-SIGHT. FROM THE SURFACE TO GIVEN HEIGHT H.
HEIGHT H
(METERS)
10 oEo
*0 0(6
JO DCG
40 l>tG
60 UtG
00 Utb
(0 UtG
00 UtG
90 UtG
50.0000
,9b4b
• 9559
.9604
.9509
.9509
.9509
.9609
• 9509
100.ucoo
.94.8
.9501
• 9607
.9513
• 9510
.9519
.9519
.9619
.9519
*00.0000
.9661
• 9 | )0
.91*5
• 9|40
• 9161
• 9|5|
• 9156
.9165
.9156
300,0000
.6373
• 044J
.64 64
• 05*1
• 0640
.H55*
• 0550
• 0600
• 050*
600*0000
.5240
.5603
.5609
• 5906
• 0094
• M St
.0109
• 0109
.0190
1000.UUOO
.3lb7
. J/J7
• ♦!&♦
.4 394
• ♦ 60 /
• 4b4l
• 4090
• 4 f JO
,4/4 3
1500.0000
.2863
• 34HJ
• J 0 //
• ♦10b
. 4 J00
• 446ft
.460 /
• 454..
.4550
?000.0v00
• 261b
. J44 J
. 304*
• ♦164
• 4 J J0
.44*1
• * 4 / 6
.4510
.45.10
*500•ouoO
.2803
.34 U
• 30 )4
• ♦!♦/
.4 JJ*
• 44 IS
• 4% t .f
• 4 5 l u
• 45*5
3500.OO00
.2764
• J4 0 J
• J0O0
.4 1*0
• 4 il l
.4*9/
• 445*>
• 4%V 4
.4510
TABLE C33 WINTER
PROBABILITY OP CLOUO-FREE LINES-OF-SIGHT. FROM THE SURFACE TO GIVEN HEIGHTH.
HEIGHT H
(METE AS)
10 DEG
20 DC6
3* DC*
*0 OLD
50 UtG
60 DfG
70 DtG
80 OtG
00 DEO
bO.ooo*
.0*76
.0076
.0077
.9077
.0*77
.007 7
• oo/T
.0077
.00/8
10E.0000
.0072
.0073
.007*
.007*
.0*75
.0*75
.0975
.0075
.0075
2*0.0000
.0023
.002*
.0027
.0020
.0030
.0*30
»0o jO
.0030
.0030
300.000*
.0703
.9721
.0712
.07*2
.07*8
.0»50
.07s2
.0753
.07>3
kOO.oOOt
• 6666
.6070
.71 76
.7332
.7*27
.7*67
. 7*0*
.7516
.7523
1000.0000
.16*3
.8106
.*520
.*•5*
.50*0
.5137
.5107
.52*0
.525 7
1500.0000
.2001
.37|1
• *l 7*
.*520
.*7*0
.*837
.*0*2
.*0*0
,*06 7
20OO.oOOO
.2*02
. J70*
.*167
.*52*
.*715
.,*812
.*80/
.*0*4
.*063
2bt0.0000
.2*60
.3601
.*150
.*516
.*727
.*825
.*8*0
.*037
.*056
1500.0000
.2*5*
.3601
.*!*•
• »504
.*718
.*815
.*8817
• *02»
.*0*7
C—12
NSWCTR 78-143
■
PCFLOS <A,H)
TABLE C34 SPRING
LOCATION N
PROBABILITY OF CLOUD-FREE LINES-OF-SIGHT. FROM THE SURFACE TO GIVEN HEIGHT H.
HEIGHT H
(METERS)
io oeo
20 DE6
30 DCS
40 DEG
50 OES
60 DCS
70 OES
00 OES
90 DCS
SO.900#
• 9997
.9997
.9997
• 9997
.9997
.9997
.9997
.9997
.9997
100.0000
.9993
.9994
.9995
.9995
.9995
.9995
.9995
.9995
.9996
200.0000
.9970
.9970
• 9970
.9979
.9979
. .9900
.9900
.9900
.9900
300.0000
.9910
.9919
.9924
.9920
.9931
.9932
.0932
.9933
.9933
600.0000
.0011
.0922
.0996
• 9049
.9001
.9095
.9104
.9111
.9114
1000.0000
.005*
• ♦640
• 5036
.5315
.5476
.5557
• 5605
.5642
.5656
1500.0000
.3710
• 4324
.4737
.5029
.5190
.5202
.5333
.5371
.5306
2000.0000
.3695
.4310
• 4 724.
.5017
• 5166
.5271
.5321
• 5359
.5374
2590.0000
.3605
.4301
• 4716
.5009
.5170
.5263
.5314
.5352
.5367
3500.0000
.3630
.4259
.4677
4975
.5145
.5230
.5202
.5320
.5337
TABLE C3S SUMMER
PROBABILITY OF CLOUD-FREE LINES-OF-SIGHT, FROM THE SURFACE TO GIVEN HEIGHT H.
HEIGHT H
(METERS) '
io oeo
20 OEO
30 0C6
.40 ocs
50 0E6
60 DCS
7» OES
00 OES
90 DEG
50.0000
.9565
.9555
.9559
.9564
.9569
.9569
.9569
.9569
.9569
100.0000
.9*00
.9501
.9507
.9513
.9510
.9519
.9519
.9519
.9519
200.0000
.9001
.9110
.9125
.9140
.9151
.9153
.9155
.7155
.9155
300.0000
.0373
.0443
;«4«4
.0521
.0546
.0552
.0550
.•560
.0562
000.0000
.52*6
.5593
.5009
.5906
.6094
.6137
.6169
.6109
.6196
leoo.oooo
.3157
.3737
• 4104
.4394
.4567
• 4645
•4696 '
.4730
.4743
1500.0000
.2063
.3403
.3077
.4106
.4360
.4450
.4507
.4544
.4550
2000.0000
.2015
.3443
.3042
.4154
.4330
.4421
.4470
.4516
.4530
2500.0000
.2003
.3433
.3034
.4147
.4332
.4415
.4473
.4510
.4525
3500.0000
..27*4
.3403
.3000
;4i26
.4313
• 4 JOT
.4455
.4493
.4510
TABLE C36 WINTER
PROBABILITY OF CLOUD-FREE LINES-OF-SIGHT. FROM THE SURFACE TO GIVEN HEIGHT H.
HEIGHT H
(METERS)
10 OCS
20 OCS
30 OCS
40 DCS
59 0C6
64 OCS
70 OES
04 OEO
90 DCS
50.0000
.9972
.9973
.3973
,9973
*9974
.9974
.9974
.9974
.9974
ioo;oooo
.9966
.9967
.9967
.9960
.9960
.9960
.9960
.9960
.9960
200.0000
.9947
.9949
.9949
.9950
.9951
.9951
■ .9951
.9961
.9951
.9792
.9003
.9010
.9016
.9020
.9021
.9022
.9023
.9023
600.0000
.0424
.0550
.0645
.0710
.0751
.0760
.0770
.0707
.0796
1000.9000
.3060
.4400
.4095
.5190
.5367
.5452
.5501
.5543
.5560
1500.0000
.3629
.4269
.4697
.5000
.5103
.5270
.5321
.5364
.6301
2000.0000
.3616
.4256
.4605
.4909
.5172
.5260
.531’.
.5353
.5371
2500.0000
.3610
.4252
• 4601
.4906
.5169
. .5257
.5340
.5351
.5360
3500.0000
.3571
.4221
.4654
.4963
.6140
.5237
.5207
.5332
.5351
C-13
NiWC TR 78-143
PCFLCS (A,HI TABLE C37 SPRING LOCATION P
PROBABILITY OF CLOUD-FREE LINES-OF-SIGHT, sT.OM TKF SURFACE TO GIVEN HEIGHT H.
HEIGHT
1METERS)
io oce
20 0C6
30 DES
40 0ES
50 DEG
60 DEG
70 DEG
00 0E6
90 UE6
50*0000
.9410
.9423,
.9429
.9435
.9441
.9441
.9441 .
.9441
.9441
100.0000
.9375
.9309
.9396
.9403
.9410
.9410
.9410
.9411
.9411
200.0000
.0761
.0797
.0017
.0036
.0051
.0053
.0054
.0055
.0055
300.0000
.7973
.0047
.0091
.0120
.0157
.0163
.0167
.0170
.0171
600.0000
.4422
.4016
.5069
.5257
.5300
.5429
.5457
.5400
.501
1000.0000
.300*
.3611
.3952
.4200
.4361
.4427
.4465
.4496
.4511
1500.0000
.2990
.3524
.3072
.4125'
.4209
.4356
.4396
.4427
.4443
2000.0000
.2970
-3505
.3054
.4109
.4273
.4341
.4300
.4412
.4420
2500.0000
.2940
.3470
.3020
.4004
.4249
.4317
14357
.4300
.4404
3500.0000
.2090
.3445
.3000
>4061
.4220
.4297
.4337
.4369
.4300
TABLE C38 SUMMER
PROBABILITY OF CLOUO-FREE LINES-OF-SIGHT. FROM THE SURFACE TO GIVEN HEIGHT H.
HEIGHT
(METERS)
10 0E«
20 DEG
30 DES
40 DEG
50 DE6
60 0EG
70 DE6
00 DEG
90 DEG
59.0000
.9197
.9214
.9222
.9231
.9239
.9239
.9239
.9239
.9239
100.0000
.9100
.9119
.9129
.9130
.9140
.9140
.9140
.9140
.9140
200.0000
.7949
.0009
.0041
.0070
.0095
.0090
.0100
.0101
.0102
300.0000
.6714
.6026
.6009
.6945
.6990
.6990
.7003
.7006
.7000
600.0000
.3116
.3455
.3660
.3027
.3944
.3977
.4000
.4015
.4021
1000.0000
.1950
.2366
.2622
.2027
, .2967
.30)0
.3039
.3050
.3066
<500.0000
.1021
.2246
.2500
.2717
.2060
.2904
.2933
.2952
.2961
2000.0000
.1006
.2234
.2497
.2707
.2050
.2095
.2924
.2944
.2952
2500.0000
.1705
.2215
.2400
.2692
.2035
.2000
.2910
.2930
.2930
3500.0000
.1760
.2195
• 2463
.2677
.2021
.2067
.2097
.2917
.2926
TABLE C39 WINTER
PROBABILITY OF CLOUO-FREE LINES-OF-SIGHT. FROM THE SURFACE TO GIVEN HEIGHT H.
MCIftMT
(NCTtftS)
10 oc«
20 0€O
30 DEO
40 OEO
50 DEO
60 DEG
70 DEG
00 OEG
90 DEG
SloHM
.9514
.9524
.9529
.9534
.9539
.9539
.9539
.9539
.9539
IM.VMI
.9467
.9479
.9405
.9491
.9496
.9497
.9497
.9497
.9497
IMoMM
.0»53
..0794
• ooio
.0030
.0055
.0050
.0059.
.0061
.0061
JMoMM
.7069
.7949
. 7990
.0040
.0072
.0079
.0004
.0007
.0009
MMMI
.3002
.4331
.4616
• 4v*34
.4973
.5030
.5065
.5091
.5104
ltov.etot
.2043
.3412
.3770
.4050
.4222
.4295
.4339
.4373
.4390
ISOtoQMt
.2799
.3371
.3741
.4014
.4107
.4261
.4304
.4330
.4356
, .2791
.3364
.3734
.4007
.4100
.4254
.4290
.4332
.4350
?5«0.90M
.2763
.3337
.3700
.3902
.4155
.4229
.4273
.4307
.4325,
3*09
.2669
.3250
.3625
.3903
.4070
.4153
.4197
.4232
.4251
C—14
NSVVC TR 78-143
PCFLOS (A,H)
PROBABILITY OF CLOUD-FREE L'NCS-OF-SIGHT
TABLE C40 SPRING
, FROM THE SURFACE TO GIVEN HEIGHT H.
LOCATION T
HEIGHT H
(METERS)
10 0£6
20 OEG
30 OEG
*0 DEG 50 DEG
60 OEG
70 0E6
80 DEG
90 OEG
50.0000
.9038
.99*2
.99**
.99*6 .99*8
.95*8
.99*9
.99*9
.99*9
100.0000
.9933
.99*2
.99**
.99*6 .99*8
.99*8
.99*9
.99*9
.99*9
200.0000
.9897
.9903
.9907
.9911 .9913
.991*
.991*
.9915
.9915
300.0000
.9838
.98*9
.9856
.9861 .9865
■ .9866
.9868
.9668
' .9868
000.0000
.8919
.90*7
.9137
.9197 .9233
.9253
.926*
.927*
.9277
1000.0000
.6921
.7399
.7760
.7969 .8095
.8173
.8218
.8253
.8265
1500.0000
.6399
.6965
.7397
.76*2 .7791
.788*
.7938
.7979
.7993
2000.0000
.6307
.6886
'. 7327
.7578 .7731
.7826
.7881
.7923
.7937
2500.0000
.6272
.6853
.7295
.75*7 .7700
.7795
.7851
.7893
.7907
3500.0000
.6236
.6829 '
.7272
.753* .7687
.7783
.7839
.7881
.7905
TABLE C41 SUMMER
PROBABILITY OF CLOUO-FREE LINES-OF-SIGHT. FROM THE SURFACE TO
GIVEN HEIGHT H.
HEIGHT h
(METERS)
10 DEG
20 DEG
30 OEG
*0 OEG
SO OEG
60 DEG
70 DEG
80 OEG
90 OEG
50.0000
.9592
.9662
.9715
.97*5
.9762
.9773
.9779
.978*
.9788
100.0000
.9592
.9662
.9715
.97*5
.9762
.9773
.9779
.978*
.9788
200.0000
.9586
.9655
.9708
.9738
.9755
.9767
.9772
.9777
.9782
300.0000
.9532
.9609
.9666
.9699
.9718
.9730
.9736
.97*2
.97*6
600.0000
.8053
.835*
.8576
.8709
.8786
.8835
.8861
.888*
.889*
1000.0000
.67*2
.7309
.7751
.7988
.8129
.8226
.8280
.8322
.8337
1500.0000
.6710
.7283
.7730 ■
.7969
.8111
.8209
.826*
.8306
.8322
'2000.0000
.6702
.7277
.772*
.7961*
.8106
.8205
.8259
.8302
.8317
2500.0000
.6699
.727*
.7722
.7961
.810*
.8202
.8257
.8300
.8315
3500.0000
,655*
*71*8
• 7606
.7858
.800*
.8105:
.8161
.8205
.8225
TABLE C
PROBABILITY OF CLOUO-FREE LINES-OF-SIGHT, FROM 11
42 WINTER
HE SURFACE TO GIVEN HEIGHT H.
HEIGHT H
(METERS)
10 DCS
20 OEG
30 OEG
*0 DEO
50 DEG
60 DEG
70 OEG
80 OEG
90 OEG.
50.0000
1.0000
1.0000
1.0000
i.oooe
1.0000
1.0000
1.0000
1.0000
1.0000
100.0000
1.0000
1.0000
1.0000
. 1.0000
1.0000
1.0000
1.0000
1.0000
1.0000
200.0000
.9996
.9997
.9997
.9998
.9998
.9998
.9998
.9998
.9998
300.0000
.9996
.9997
.9997
.9998
.9998
.9996
.9998
.9998
.9998
600.0000
.9610
.9666
.9707
.9732
.97*8
.9756
.9760
.9765
.9166
1000.0000
.6900
.7390
.77*8
.7967
.8098
.8175
.8219
.8255
,8269
1500.0000
.5933
.6573
.70*1
.7327
.7*98
.7598
.7655
.7702
.7721
2000.0000
.5778
.6**0
.6923
.7219
.7396
. 7500
.7558
.7607
.7626
2500.0000
.5738
.6403
.6689
.7186
.7363
.7*68
.7527
.7575
. 7598
3500.0000
.5717
.6389
.687*
.7179
.7356
.7*61
.7519
.7568
.7595
NSWC TR 78-143
PCFLOS (A,H) TABLE C43 SPRING LOCATION V
PROBABILITY OF CLOUD-FREE LINES-OF-SIGHT, FROM THE SURFACE TO GIVEN HEIGHT H.
HEIGHT H
(METERS)
10 OEG
20 OEG
30 DEG
40 OEG
50 DE6
60 DE6
70 DEG
00 OEG
90 DE6
59.0000
.9010
.9022
.9024
.9026
.9020
.9020
.9020
.9020
.9020
100.0000
.9010
.9022
.9024
.9026
.9020
.9020
• .9020
.9020
.9020
. 200.0000
• 9640
.9651
.9650
.9663
*9666
.9669
.9669
.9669
.9670
300.0000
.9006
.9055
.9006
.9110
.9129
'.9134
.9137
.9139
.9140
' 690.U000
.6946
.7171
.7310
.7425
.7499
.7526
.7541
.7555
.7562
1000.0000
.4060
.*625
.5003
.5263
.5629
.5503
.5545
.5502
.5599
1500.0000
.3709
.4374
.4770
.5044
.5210
.5296
.5340
.5300
.5397
2000.0000
.3770
.4350
.4756
.5030
.5204
.5203
.5327
.5367
.5304
2500.0000
.3735
.4326
.4725
.5001
.5176
.5256
.5300
.5340
.5357
3500.0000
.3594
.4203
.4613
.4099
.5079
.5160
.5206
.524 7
.5267
TABLE C44 SUMMER
PROBABILITY OF CLOUD-FREE LINES-OF-SIGHT. FROM THE SURFACE TO GIVEN HEIGHT H.
HEIGHT H
(METERS)
10 OEG 20 OEG
30 DEG
40 OES
SO OEG
60 OEG
70 OEG
80 DEG
90 UEG
50.0000
.9050 .9053
.9854
.9856
.9057
.9857
.9857
.9857
.9857
100.0000
.9828 .9032
.9834
.9835
.9837
.9637 ,
, .9837
.9037
.9837
200.0000
.9735 .9745
.9751
.9755
.9759
.9760
.9760
.9761
.9761
300.0000
.9457 .9.83
.9499
.9512
.9521
.9523
.9525
.9526
.9527
600.0000
.7700 .7909
.8053
.01^7
.8208
.8236
.0250
.0264
.8270
1000.0000
.5218 .5786
.6195
.6446
.6600
.6605
.6729
.6770
.6785
1500.0000
.5123 .5707
.6127
.6384
.6543
.6630
.6675
.6717
.6732
2000.0000
.500
1
1 .5660
.6091
.6350
.6509
.6596
.6642
.6684
.6700
2500.0000
• soi
7 .5637
• 6061
.6321
.6481
.6569
.6615
.6657
.6673
3500.0000 .407
PROBABILITY OF CLC
3 . .5480 .5914, .6185 .6349 .6439 .6406
TABLE C45 WINTER
IUO-FREE LINES-OF-SIGHT, FROM THE SURFACE TO GIVEN HEIGHT H.
.6529
.6549
HEIGHT H
(METERS)
10 D
:6 20 OEG
30 OEG
40 UEG
SO OEG
60 UEG
70 OEG
80 OEG
90 UEG
50.0000
1.00
>0 1.0000
1.0000
1.0000
1.0000
1.0000
1.0000
1.0000
1.0000
100.0000
.99'
>2 .9992
.9992
.9^92
.9992
.9992
.9992
.9992
.9992
200.0000
.99!
18 .9961
.9963
.9964
.9964
.9965
.9965
.9965
.9965
300.0000
.951
18 .9620
.9640
.9654
.9664
.9668
.9670
.96 72
.9673
600.0000
.731
0 .7576
.7758
.7886
.7970
.0007
.8027
.8045
.8054
1000.0000
.42:
3 .4892
.5356
.5668
.5865
.5959
.6007
.6056
.6079
1500.0000
.411
1 .4804
.5277
• 5596
.5796
.5892
.5941
.5991
.6014
2000.0000
' .401
3 .4779
.6254
.5574
.5775
, .5071
.5921
.5971
.5994
2500.0000
.401
■3 .4760
.5236
.5557
.5758
.5854
.5904
.5954
.5977
3500.0000
.391
16 .4691
.5171
.5497
.5700
.5797
- .5047
.5898
.5922
TABLE C46 PCFLOS (A)
NSWC TR 78-143
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TABLE C46 PC FLOS <A1 (CONT.)
PROBABILITY OF A CLOUD-FREE LINE-OF-SIGHT THROUGH ALL CLOUDS,
FOR NINE ELEVATION ANGLES AND THREF SEASONS, AT EACH LOCATION.
NSWC TR 78-143
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TABLE C46 PCFLOS (A) (CONT.I
PROBABILITY OF A CLOUD-FREE LINE-OF-SIGHT THROUGH ALL CLOUDS
FOR NINE ELEVATION ANGLES AND THREE SEASONS, AT EACH LOCATION.
NSWC TR 73-143
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APPENDIX D
GRAPHS FOR LOCATIONS 1. 9, J AND M INCLUDING.
CLOUD BASE HEIGHT STATISTICS, WINTER. SPRING AND SUMMER.
PROBABILITY OF A CLOUD-FREE LINE-OF-SIGHT. TO VARIOUS ALTITUDES.
AS A FUNCTION OF ELEVATION ANGLE. WINTER. SPRING AND SUMMER.
PROBABILITY OF CLOUD-FREE LINE-OF-SIGHT, TO VARIOUS ALTITUDES,
COMBINED WITH A SLANT RANGE CURVED EARTH GEOMETRY, SPRING.
0.5 ---;—|-—,_._i___- LOCATION 2 3 SEASONS
NSWC TR 78-143
Aini8vwtod ih asva anono
FIGURE 0-1 LOWER CLOUD BASE HEIGHT STATISTICS, LOCATION 2
(SEE TABLES A-1A, A-2A, AND A-3A).
NSWC TR 78-143
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FIGURE 0-3 PROBABILITY OF A CLOUD-FREE I.INE-OF-SIGHT, TO VARIOUS ALTITUDES, AS A
FUNCTION OF ELEVATION ANGLE, LOCATION 2, SPRING. {SEE TABLE C-1).
X 10 DEGREES
* 30 DEGREES
Y SO DEGREES
Z 70 DEGREES
• [•TV
FIGURE 0-4 PROBABILITY OF A CLOUD-FREE LINE-OF-SIGHT, TO VARIOUS ALTITUDES, AS A
FUNCTION OF ELEVATION ANGLE, LOCATION 2, SUMMER. (SEE TABLE C-2).
FIGURE 0-5 PROBABILITY OF CLOUD-FREE LINE-OF-SIGHT TO VARIOUS ALTITUDES. COMBINED
WITH A SLANT RANGE CURVED EARTH GEOMETRY. LOCATION 2, SPRING. (SEE TABLE
C-1>.
0-5
FIGURE D-6 LOWER CLOUD BASE HEIGHT STATISTICS, LOCATION 9. (SEE TABLE A-4A, A-5A,
AND A—8A).
X to DEGREES
* 30 DEGREES
Y SO DEGREES
Z 70 DEGREES
0 90 DEGREES
ANGLE. LOCATION 9, WINTER. (SEE TABLE C-6).
NSWC TR 78-143
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OF ELEVATION ANGLE, LOCATION J. SPRING. (SEE TABLE C-25).
X10 DEGREES
•30 DEGREES
Y 50 DEGREES
Z 70 DEGREES
090 DEGREES
FIGURE 0-14 PROBABILITY OF A CLOUD-FREE LINE-OF-SIGHT, TO VARIOUS ALTITUDES, AS A FUNCTION
OF ELEVATION ANGLE, LOCATION J, SUMMER. (SEE TABLE C-26).
FIGURE 0-18 PROBABILITY OF A CLOUO-FREE LINE-OF-SIGHT, TO VARIOUS ALTITUDES, COMBINED
WITH A SLANT RANGE CURVED EARTH GEOMETRY, LOCATION J SPRING. (SEE TABLE
C-28).
D—16
LOCATION M 3 SEASONS
o
NSWC TR 78-143
D~17
CLOUD BASE HEIGHT (METERS)
F " ME °'’ 6 IS 23SSS HEIGHT STATISTICS, LOCATION «. , SEE TABLES A-3IA,
X10 DEGREES
* 30 DEGREES
Y60 DEGREES
270 DEGREES
□ 90 DEGREES
FIGURE D-17 PROBABILITY OF A CLOUD-FREE LINE-OF-SIGHT, TO VARIOUS ALTITUDES. AS A FUNCTION
OF ELEVATION ANGLE, LOCATION M, WINTER. (SEE TABLE C-33).
X10 DEGREES
• 30 DEGREES
YSO DEGREES
2 70 DEGREES
□ 90 DEGREES
FIGURE D-19 PROBABILITY OF A CLOUD-FREE LINE-OF-SIGHT, TO VARIOUS ALTITUDES. AS A FUNCTION
OF ELEVATION ANGLE. LOCATION M, SUMMER. (SEE TABLE C-32).
PROBABILITY OF A CLOUD-FREE LINE OF SIGHT SLANT RANGE KM
NSWC TR 78-143
X 10 DEGREES
• 30 DEGREES
Y 50 DEGREES
2 70 DEGREES
□ 90 DEGREES
LOCATION M SPRING
CLOUD BASE HEIGHT (METERS)
FIGURE D-20 PROBABILITY OF A CLOUD-FREE LINE-OF-SIGHT, TO VARIOUS ALTITUDES. COMBINED WITH
A SLANT RANGE CURVED EARTH GEOMETRY, LOCATION M, SPRING. (SEE TABLE C-31).
D-21
NSWC TR 7b-143
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