451
451
Jun 1, 2011
06/11
by
Addy, Harold E., Jr.; Broeren, Andy P.; Zoeckler, Joesph G.; Lee, Sa
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Aerodynamic wind tunnel tests were conducted to study the effects of various ice accretions on the aerodynamic performance of a 36-inch chord, two-dimensional business jet airfoil. Eight different ice shape configurations were tested. Four were castings made from molds of ice shapes accreted in an icing wind tunnel. Two were made using computationally smoothed tracings of two of the ice shapes accreted in the icing tunnel. These smoothed profiles were then extended in the spanwise direction to...
Topics: OZONE, ADIABATIC CONDITIONS, TROPOSPHERE, SMOKE, AIR WATER INTERACTIONS, LONG WAVE RADIATION,...
3,175
3.2K
May 29, 2011
05/11
by
Rumerman, Judy A
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This sixth volume of the NASA Historical Data Book is a continuation of those earlier efforts. This fundamental reference tool presents information, much of it statistical, documenting the development of several critical areas of NASA responsibility for the period between 1979 and 1988. This volume includes detailed information on the space applications effort, the development and operation of aeronautics and space research and technology programs, tracking and data acquisition/space...
Topics: LATENT HEAT, METEOROLOGICAL RADAR, MICROWAVE SENSORS, RAIN, TRMM SATELLITE, TROPICAL REGIONS,...
This paper represents the first attempt to use TRMM rainfall information to estimate the four dimensional latent heating structure over the global tropics for February 1998. The mean latent heating profiles over six oceanic regions (TOGA COARE IFA, Central Pacific, S. Pacific Convergence Zone, East Pacific, Indian Ocean and Atlantic Ocean) and three continental regions (S. America, Central Africa and Australia) are estimated and studied. The heating profiles obtained from the results of...
Topics: NASA Technical Reports Server (NTRS), LATENT HEAT, RAIN, TRMM SATELLITE, TROPICAL REGIONS,...
The horizontal and vertical transport of biomass fire emissions in West Africa during November 1998 through February 1999, are examined using all available data including wind, fire, aerosol, precipitation, lightning and outgoing longwave radiation. Ozonesonde data from the Aerosols99 Trans-Atlantic cruise are also included with rain and wind analyses. The results here support earlier studies that ozone and ozone precursors associated with biomass burning are confined to the lower troposphere...
Topics: NASA Technical Reports Server (NTRS), OZONE, TROPICAL REGIONS, WINTER, NORTHERN HEMISPHERE,...
Large-scale models such as GEOS-5 typically calculate grid-scale fractional cloudiness through a PDF parameterization of the sub-gridscale distribution of specific humidity. The GEOS-5 moisture routine uses a simple rectangular PDF varying in height that follows a tanh profile. While below 10 km this profile is informed by moisture information from the AIRS instrument, there is relatively little empirical basis for the profile above that level. ATTREX provides an opportunity to refine the...
Topics: NASA Technical Reports Server (NTRS), TROPICAL REGIONS, TROPOPAUSE, WATER VAPOR, VARIABILITY,...
