The 9th Log Comd (B) long range objectives are as follows: (1) Place in-country pre-D-Day a 30 day stockage of all classes of supply for D plus 30 deployments. (2) Buildup the logistics troops in Thailand now necessary to prepare the base to receive the combat forces. (3) Provide the necessary control elements and components planning to develop an operational logistics system. (4) Improve the lines of communication to handle TOE post-D-Day traffic densities. A means of relieving this problem...
Topics: DTIC Archive, ADJUTANT GENERAL'S OFFICE (ARMY) WASHINGTON DC, *LOGISTICS, CHANNELS(WATERWAYS),...
This report summarizes the results of initial research designed to determine the best methods for marking straight lighted channels. Two methods were examined: regulated time flashing (temporal) and color flashing (chromatic). In the temporal method all (30) test observers chose the ordered systems (sequential and simultaneous) superior to the unordered systems (random, random-sequential, and random-simultaneous). Within the test conditions for ordered systems, sequential flashing was chosen...
Topics: DTIC Archive, Bates, Robert, COAST GUARD RESEARCH AND DEVELOPMENT CENTER GROTON CT,...
A comprehensive review was made of the literature to determine the environmental impact of the loss of backwater areas in connection with proposed changes in the channel of the Mississippi River between St. Louis, Missouri, and Cairo, Ill. The review covered two general areas: Literature pertaining to the physical, chemical, and biotic factors of larger rivers, and literature pertaining to the biology of the fishes recorded as present in the section of concern in the Mississippi River. The...
Topics: DTIC Archive, Schramm, Jr , Harold L, SOUTHERN ILLINOIS UNIV AT CARBONDALE FISHERIES RESEARCH LAB,...
The Coastal Inlets Research Program (CIRP) is a R and D Program funded through the Operations and Maintenance (O and M) funding. The CIRP mission is to develop tools and methodologies to reduce O and M costs at coastal navigation projects, including inlets, entrances, ports, navigation structures, channels, and adjacent beaches. PC- and web-based products are provided for District engineers and scientists to rapidly evaluate O and M alternatives.
Topics: DTIC Archive, Rosati,Julie D, U.S. Army Engineer Research and Development Center Viclsburg United...
The purpose of this paper is to explain briefly the use of a certain equation which will allow us to compute the velocity Vm when the dimensions of the inlet and its bay, together with the tidal range of the outside sea, are known. No attempt will be made to derive the equation other than to point out that it is obtained by eliminating a single variable between two equations which have been previously derived by Colonel Earl I. Brown in a paper entitled Inlets on Sandy Coasts in the Proceedings...
Topics: DTIC Archive, Escoffier,Francis F, United States Engineer Office Mobile United States,...
The narrow jetty configuration of Tillamook Inlet functions to constrict tidal flow, increase current speed, and prevent sediment deposition. However, the interaction of strong currents with incoming ocean waves over the inlets ebb shoal can amplify and complicate the wave environment at the inlet entrance. In this study, the Coastal Modeling System (CMS) was used to investigate time- and space-varying wave and current conditions affecting boating operations at Tillamook Inlet and quantify the...
Topics: DTIC Archive, Li,Honghai, Army Engineer Research and Development Center Vicksburg United States,...
To present a method and procedure for designing uniform-stone and graded-stone revetments for protection against wave attack.
Topics: DTIC Archive, U. S. Army Engineer Waterways Experiment Station Vicksburg United States, Revetments,...
The purpose of this technical note is to present some design considerations which benefit dead-end channel flushing. Some of these factors can also be used to improve flushing in existing harbors. Flushing uses the natural energy sources available to remove pollutants and suspended sediments from a waterbody. Construction of dead-end channels should be avoided if possible because they have only one boundary open to flow, thus flushing is limited to this single opening. If it is necessary to...
Topics: DTIC Archive, Cialone,Mary A, U. S. Army Engineer Waterways Experiment Station Vicksburg United...
A major concern at many tidal inlets around the United States is how to reduce maintenance dredging costs. This CETN uses East Pass, Florida, as an example of how historic dredging data and bathymetric surveys can be used to evaluate whether dredging can be reduced. The particular alternatives reviewed are realigning the navigation channel or reducing its dimensions.
Topics: DTIC Archive, Morang,Andrew, U. S. Army Engineer Waterways Experiment Station Vicksburg United...
This Coastal and Hydraulics Engineering Technical Note (CHETN) presents an example of how to use the numerical model CGWAVE within the Surface Water Modeling System (SMS) Version 8.0 environment. Updates of SMS are frequent and may result in different control options. This CHETN was completed as part of the Tedious Creek, MD, work unit of the Monitoring Completed Navigation Projects program.
Topics: DTIC Archive, Briggs,Michael J, U.S. Army Engineer Research and Development Center Coastal and...
This Coastal and Hydraulics Engineering Technical Note (CHETN) summarizes comparisons of predicted and measured shoaling at Morro Bay Harbor Entrance, California. Shoaling predictions were determined by the U.S. Army Engineer District, Los Angeles, as part of the navigation improvements Feasibility Report (USAED, Los Angeles, 1991). Prototype survey data were collected in pre- and post dredge surveys and during a monitoring effort at the site that was conducted as part of the Monitoring...
Topics: DTIC Archive, Thompson,Edward F, U.S. Army Engineer Research and Development Center Coastal and...
This study evaluates data from two high-frequency (12 and 100kHz) side-looking sonars which were operated for extended periods in March and October 1997 in Drogden Channel, near Copenhagen, Denmark. This busy shipping channel, 1-km-wide by 12-m-deep, connects the Baltic Sea with the North Sea through the Kattegat. The original purpose of these tests was to demonstrate continuous surveillance for migratory herring, however a variety of shipping traffic was also observed. Quantitative acoustic...
Topics: DTIC Archive, Trevorrow,Mark V, Defence Research and Development Canada Atlantic Dartmouth, Nova...
This technical report provides a description of Regional Sediment Management (RSM) investigations performed by the U.S. Army Corps of Engineers, Jacksonville District, along Floridas northeast coast in Nassau and Duval Counties. Provided first is an overview of the study area, including previous RSM activities, pertinent studies, and stakeholder discussions. Next is a discussion of the various Federal projects in the study area, including authorization, funding, and permitting. Finally,...
Topics: DTIC Archive, Hodgens,Kevin C, U.S. Army Engineer District, Jacksonville Jacksonville United...
This U.S. Army Corps of Engineers (USACE), Engineer Research and Development Center (ERDC), Dredging Operations and Environmental Research (DOER) Program technical note (TN) explains processes that contribute to infilling of channels and basins in coastal regions where salt water and fresh water mix. It briefly discusses methods to reduce this infilling. Future activities of this DOER research task will identify connections between infilling mechanisms and forcing data. This will aid in...
Topics: DTIC Archive, Coe,Lauren, U.S. Army Engineer Research and Development Center Vicksburg United...
This Coastal and Hydraulics Engineering Technical Note (CHETN) describes the history of ebb shoal morphology at Longboat Pass, Manatee County, FL, based on a review of the history and the recent inlet management studies for proposed navigational dredging of the Pass. The study area is located on the southwest Gulf of Mexico coast of Florida (Figure 1). The goals of the study were to determine the best channel configuration for navigation and most appropriate beneficial use of dredged sediments...
Topics: DTIC Archive, Legault,Kelly R, U.S. Army Engineer Research and Development Center Vicksburg United...
Numerical wave and flow modeling studies were conducted to evaluate modifications to improve navigation at Hilo Harbor, HI. Analysis of field data, hydrographic surveys, and numerical and ship simulation modeling calculations are described in this report. The existing mooring and turning basin area adjacent to the Federal channel cannot safely accommodate the size of vessels presently using the harbor. A second issue affecting navigation in Hilo Harbor is the surge problem, which occurs mostly...
Topics: DTIC Archive, Demirbilek,Zeki, U.S. Army Engineer Research and Development Center Vicksburg United...
A 2.5-day interagency workshop attended by river scientists and engineers was held in Cape Girardeau, MO, from 10-12 January 2011. The goal of the workshop was to develop conceptual models (CMs) to guide side channel restoration planning for the Middle Mississippi River. Side channels support a wide range of ecological processes, functions, and biota in large river systems like the Middle Mississippi. Conceptual models are needed to link the physical, chemical, climatic, and human factors...
Topics: DTIC Archive, Nestler,John M, Environmental Laboratory, U.S. Army Engineer Research and Development...
This document includes the daily agenda and briefing charts for the 2005 Tri-Service Infrastructure Systems Conference and Exhibition Re-Energizing Engineering Excellence held 2-4 August 2005 in St. Louis, MO.
Topics: DTIC Archive, O'Connor,Michael J, National Defense Industrial Association Arlington United States,...
Track 13: Folsom Dam Evaluation of Stilling Basin Performance for Uplift Loading for Historic Flows and Modification of Folsom Dam Stilling Basin for Hydrodynamic Loading, Seismic Stress Analysis of Folsom Dam, Barge Impact Analysis for Rigid Lock Walls ETL 1110-2-563, Belleville Locks and Dam Barge Accident on 6 Jan 05, Portugues Dam Project Update, Portugues Dam: RCC Materials Investigation, Nonlinear Incremental Thermal Stress Strain Analysis Portugues Dam, Seismic Isolation of...
Topics: DTIC Archive, NATIONAL DEFENSE INDUSTRIAL ASSOCIATION ARLINGTON VA ARLINGTON United States,...
The objective of this project is to determine the characteristics of intermittent and ephemeral streams and develop a stream hydrogeomorphic classification incorporating key physical process drivers that create and support riverine and riparian landforms, hydrologic regimes, and biota. We hypothesized that differences in channel planform, lateral confinement, and boundary materials would produce distinctive physical environments and biotic patterns in ephemeral stream networks. We outlined five...
Topics: DTIC Archive, Cooper,David, Colorado State University Fort Collins United States, Streams, Runoff,...
This report documents numerical wave and flow modeling for stabilizing a shallow draft navigation channel and adjacent shorelines at Rhodes Point, located on Smith Island, Maryland, in Chesapeake Bay. The U.S. Army Engineer District, Baltimore (CENAB), maintains the channel and is considering structures to protect the western entrance of the channel on Chesapeake Bay side to reduce erosion of shorelines by armoring and stabilizing the channel. The U.S. Army Engineer Research and Development...
Topics: DTIC Archive, Demirbilek,Zeki, ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS VICKSBURG,...
This work presents a method for extracting vessel arrival times and arrival processes from Automatic Identification System (AIS) data. This work employs the methodology presented by Mitchell and Scully (2014) for inferring tidal elevation at the time of vessel movement and calculating the tidal dependence (TD) parameter to 23 U.S. port areas for the years 20122014. Tidal prediction stations and observation reference lines are catalogued for considered ports. AIS data obtained from the U.S....
Topics: DTIC Archive, Scully,Brandan, U.S. Army Engineer Research and Development Center Vicksburg United...
This work presents a method for extracting vessel arrival times and arrival processes from Automatic Identification System (AIS) data. This work employs the methodology presented by Mitchell and Scully (2014) for inferring tidal elevation at the time of vessel movement and calculating the tidal dependence (TD) parameter to 23 U.S. port areas for the years 20122014. Tidal prediction stations and observation reference lines are catalogued for considered ports. AIS data obtained from the U.S....
Topics: DTIC Archive, Scully,Brandan M, ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS VICKSBURG...
The 2015 Charleston Harbor, SC, final feasibility study (USACE 2015) presents results of analyses of proposed modifications to the existing navigation system. The improvements would deepen the Entrance Channel from -47 feet (ft) mean lower low water (mllw) to -54 ft mllw. The dredged material is estimated to be 80 sand and does not meet U.S. Army Corps of Engineers guidelines for beach placement. Instead of disposing in the Ocean Dredged Material Disposal Site, nearshore placement is considered...
Topics: DTIC Archive, Kashlan,Layla R, ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS VICKSBURG,...
Ice in navigation channels and around structures can cause significant damage that requires expensive repairs. This damage can also trigger delays that have the potential to disrupt the entire navigation system, well beyond the reach of the stretches of water directly impacted by ice. One example is upstream of Melvin Price Lock and Dam where ice-induced scour was repaired at a cost in excess of $1,000,000 and the scour hole reappeared within a year of the repair. Therefore, this report...
Topics: DTIC Archive, Carr,Meredith L, ENGINEER RESEARCH AND DEVELOPMENT CENTER HANOVER NH HANOVER United...
The U.S. Army Corps of Engineers (USACE) Dredging Operations and Environmental Research (DOER) Program, in conjunction with the Monitoring Completed Navigation Projects (MCNP) program, is conducting research and development activities aimed at implementing the practice of using nautical depth to manage navigation channels in the United States containing fluid mud. In these waterways, compared to those with more consolidated bottom materials (e.g., sand), determining where the bottom actually...
Topics: DTIC Archive, Welp,Timothy L, U.S. Army Corps of Engineers Vicksburg United States, depth, CHANNELS...
The 2015 Charleston Harbor, SC, final feasibility study (USACE 2015) presents results of analyses of proposed modifications to the existing navigation system. The improvements would deepen the Entrance Channel from -47 feet (ft) mean lower low water (mllw) to -54 ft mllw. The dredged material is estimated to be 80% sand and does not meet U.S. Army Corps of Engineers guidelines for beach placement. Instead of disposing in the Ocean Dredged Material Disposal Site, nearshore placement is...
Topics: DTIC Archive, Kashlan,Layla R, ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS VICKSBURG...
The purpose of this U.S. Army Corps of Engineers (USACE) Regional Sediment Management Technical Note (RSM-TN) is to document the development of a regional sediment budget and to investigate design alternatives to reduce shoaling in the lower Matagorda Ship Channel (MSC). This RSM-TN focuses on the MSC between channel Station 10+000 and Station 60+000 as well as the Gulf Intracoastal Waterway (GIWW) immediately adjacent to the MSC where the two waterways intersect (Figure 1). Placement Areas...
Topics: DTIC Archive, Wood,Eric, ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS VICKSBURG United...
Between routine navigation dredging operations, the Atchafalaya River Bar Channel (ABC) traps fluid mud, which begins to consolidate. The consolidated mud can begin to block the passage of vessels using the Port of Morgan City, LA. If the mud densities and yield stresses could be kept sufficiently low so that vessels could safely navigate through it, the length of time between navigation dredging could potentially be increased. To demonstrate the feasibility of dragging a large object through...
Topics: DTIC Archive, Tubman,Michael, ERDC-CHL Vicksburg United States, navigation, coastal engineering,...
A numerical hydrodynamic study was conducted to compare multiple levee setback alternatives to the base condition (levee without setbacks). The models developed for this study are hypothetical. An unsteady unit hydrograph representing a flood wave was used to perform the simulations. The levee setback alternatives show a reduction in water surface elevation upstream of and at the setback area when compared with the base condition. The overland water velocity increases upstream of the setback...
Topics: DTIC Archive, Echevarria-Doyle,Waleska, ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS...
The Brazos Santiago Inlet (BSI), located at the southern end of Laguna Madre, is a key part of the federal deep-draft Brownsville Ship Channel extending from the Gulf of Mexico to the Port of Brownsville, TX. As part of the Monitoring Completed Navigation Projects program, the focus of this study was to understand the shoaling process in the BSI and to suggest sand management alternatives to reduce inlet maintenance dredging costs. Hydrodynamics and sediment transport were examined for the BSI...
Topics: DTIC Archive, King,David Jr B, ERDC-CHL Vicksburg United States, Hydrodynamics, Mathematical...
A general environmental inventory of physical and cultural elements in the Middle Mississippi River floodplain (St. Louis, MS, to Cairo, IL) is provided as a reference source for preparation of environmental impact statements. Physical elements discussed include geology, soils, and climate. Cultural elements are population, economic conditions, waterborne commerce, archeology, history, outdoor recreation, and land use. Geological data, including maps prepared at a scale of 1:250,000, are...
Topics: DTIC Archive, Stoll, Jack K, Brown, Robert D, ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG...
This report describes hydraulic model tests made to generalize and verify the hydraulic design of confluence structures. Model investigation of certain confluences showed unsatisfactory flow conditions involving considerable turbulence in the confluence structure and transverse waves in the channel downstream. Major changes in particular designs were effected. Various schemes were introduced in each case. Lengthening the transition downstream from divider wall and minimal angle of intersection...
Topics: DTIC Archive, Barela, D. A., ARMY ENGINEER DISTRICT LOS ANGELES CA, *CHANNEL FLOW, *HYDRAULIC...
Tests to investigate the hydraulic performance of the chute spillway for Cowanesque Lake were conducted using a 1:60-scale model. Particular emphasis was placed on the development of a structure that would convey flow through the chute with a minimum of turbulence and waves. Flow approaching the structure from the left created a severe flow contraction at the left spillway abutment which became progressively more severe as the discharge increased. The flow contraction generated a standing wave...
Topics: DTIC Archive, Fletcher, Bobby P., ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS,...
The purpose of this study is to identify the revelant data - such as construction, stream morphology, and trends of tributaries - to the observed chronologic changes in river stage of the Missouri River at the Sioux City, Iowa area during the approximate period of 1954-1974. The causal relationships present for the observed effects are to be determined and recommendations are to be made for any further data requirements. The investigation includes a study of the following data: (a) Missouri...
Topics: DTIC Archive, WATER AND ENVIRONMENT CONSULTANTS INC FORT COLLINS CO, *RIVERS, *NEBRASKA, *IOWA,...
An historical data search and compilation is made to determine some of the major physical impacts which have occurred on the reach of Missouri River between Gavins Point Dam and Omaha, Nebraska, since 1950. The chronological records of discharge ratings, channel slopes, sediment discharges, flood discharges, etc., are displayed to show their relationship to channel modifications and other physical changes made in the past 25 years. Appendices of the original data are also displayed for present...
Topics: DTIC Archive, WATER AND ENVIRONMENT CONSULTANTS INC FORT COLLINS CO, *NEBRASKA, *RIVERS, *IOWA,...
The purpose of this investigation is to: (1) Evaluate and relate the hydraulic parameters of the Missouri River from Sioux City, Iowa to Rulo, Nebraska to the physical features of the channel such as channel width, control structures, and bend geometry; and (2) Offer recommendations regarding further data collection and computational programs. The data supplied for analysis includes: (1) Tabulation of Calculated Hydraulic Parameters, (2) 1971 Hydrographic Survey, and (3) Water Temperature Data.
Topics: DTIC Archive, WATER AND ENVIRONMENT CONSULTANTS INC FORT COLLINS CO, *RIVERS, *NEBRASKA, *IOWA,...
A fully developed, two dimensional turbulent flow is established in a water channel with a free surface. The unstratified case is first examined in regards to requirements for two dimensionality, steady state, and properties near the free surface with hot film anemometry. The flow is then stratified by injecting saturated salt water at mid depth. Downstream from the salt injector in the test section the properties of the flow are then examined. Cross sections in the center of the channel one...
Topics: DTIC Archive, Seaver, G. A., HARVARD UNIV CAMBRIDGE MA DIV OF ENGINEERING AND APPLIED PHYSICS,...
Most harbors in the continental United States of interest to the U.S. Navy are located within estuaries. Because of the presence of fresh water as well as salt water, special sedimentation problems are created. Eight sources of sediments in an estuary are discussed. Most estuaries are the repository for fine-grained sediments ranging from clay to fine sand in size which would eventually fill the estuary. This report discusses a system to remove sediments by means other than dredging. Part of...
Topics: DTIC Archive, Hoffman, John F., NAVAL ACADEMY ANNAPOLIS MD ENERGY-ENVIRONMENT STUDY GROUP,...
This project was authorized by the River and Harbor Acts of 1927 and 1930, for the purpose of obtaining and maintaining a 9- by 300-ft channel for navigation from the confluence of the Missouri River (St. Louis, Mo.) to the confluence of the Ohio River (Cairo, Ill.). The main channel will be contracted to 1500 ft between riverward ends of dikes throughout the study area in order to maintain the 9-ft depth during periods of low flow. A comprehensive study of the historical geomorphology...
Topics: DTIC Archive, Johnson,Jeffrey H, Solomon,R Charles, Bingham,C Rex, Colbert,Billy K, Emge ,William...
A study was conducted for Long Beach Harbor to numerically investigate tidal circulation in existing basins and to define and evaluate the impact of possible modification of Pier J on existing harbor circulation. A two-dimensional depth-averaged formulation of the hydrodynamic equations was used in the model and an implicit-explicit finite difference scheme was used to numerically solve the equations. The numerical model was verified using tide and velocity data from the prototype and from...
Topics: DTIC Archive, Raney,Donald C, ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MISS, *NUMERICAL...
The purpose of this phase of the Long Beach Harbor model study was to numerically investigate the impact on existing harbor circulation of alternate master plan Pier J configurations with a -82 ft channel on tidal circulation. This report describes the application of a previously verified numerical model in a completely predictive mode to evaluate the effect of alternate Pier J configurations and a -82 ft channel on tidal circulation.
Topics: DTIC Archive, Raney,Donald C, ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MISS, *NUMERICAL...
Gravity Monoliths: Gravity monoliths are used for dams, navigation locks, and retaining walls. The structural design of gravity monoliths includes evaluation of foundation conditions and spillway and freeboard requirements and the application of loadings to determine stability against sliding, overturning, and internal stress conditions. Loads are determined as directed by EM's 1110-2- 2200, -2400, -2502, and -2602. Loadings include weight of the structure, water, uplift, silt and fill, wind,...
Topics: DTIC Archive, Wilke, Norman W., Hargett, Charles M., Simmons, James W., ARMY ENGINEER WATERWAYS...
This document supplements the FEIS not only by describing continuing dredging requirements of the Navy to insure the successful introduction of the new deep-draft SSN 688 class submarines at the U. S. Naval Submarine Base, but also by correcting deficiencies noted in the decision of the United States Circuit Court of Appeals in National Resources Defense Council et al. V. Callaway et al. (2nd Cir. No. 75-7048) dated September 9, 1975. Navy dredging requirements in support of the SSN 688 class...
Topics: DTIC Archive, NAVAL FACILITIES ENGINEERING COMMAND PHILADELPHIA PA NORTHERN DIV, *WASTE DISPOSAL,...
This volume contains a review of environmental concerns as they relate to proposed spoil disposal areas. The seventy separate reviews of the Draft Supplement to the Final Environmental Impact Statement filed with the Council on Environmental Quality on 22 April 1976 generated 390 individual comments. These individual comments are responded to separately and are presented. Correspondence received during both formal and extended monitoring periods as well as transcripts from joint Army/Navy...
Topics: DTIC Archive, NAVAL FACILITIES ENGINEERING COMMAND PHILADELPHIA PA NORTHERN DIV, *WASTE DISPOSAL,...
Sections in the Connecticut River where ice jam potential is high were identified through the use of low-altitude black and white photographs taken during low-flow, ice-free conditions. The hydraulics and mechanics of ice jam initiation were investigated in the river reach where these sections were identified. Certain areas were found in the river that had a high susceptibility to ice clogging, but this high potential decreased with increasing discharge because of the improved surface...
Topics: DTIC Archive, Calkins,D J, Hutton,M S, Marlar,T L, COLD REGIONS RESEARCH AND ENGINEERING LAB...
Volume I of this report contains a description of the procedures followed in quantifying several parameters that characterize the geometry of Middle Mississippi River side channels. This volume contains reduced reproductions of computer-calculated and -plotted contour maps, which were produced during the preparation of data for calculation of parameter values. All maps contain 5-ft-interval contours with elevation relative to mean sea level.
Topics: DTIC Archive, LaGarde,Victor E, Winfrey,Samuel J, ARMY ENGINEER WATERWAYS EXPERIMENT STATION...
Several geometric characteristics of water-basin regimes, including basin size and shape, area underwater at specific water depth, and cross-sectional area, are commonly associated with benthic, plankton, and fish community population structures, although little quantitative data are available to support the association. This two-volume report describes a general procedure that was developed to calculate values of selected parameters used to define the above-mentioned geometric characteristics...
Topics: DTIC Archive, LaGarde,Victor E, Winfrey,Samuel J, ARMY ENGINEER WATERWAYS EXPERIMENT STATION...
A linear, inviscid theory, termed the coupled basins theory, has been developed to analyze the response to periodic incident waves of an arbitrary shape harbor containing several interconnected basins. The region of consideration is divided into an open-sea region and several inner-basin regions (the number depending on the harbor geometry). The solution in each region is formulated as an integral equation in terms of the normal velocity at the entrance and/or at the common boundaries between...
Topics: DTIC Archive, Lee,Jiin-Jen, Raichlen,Fredric, CALIFORNIA INST OF TECH PASADENA W M KECK LAB OF...
Seasonal water-temperature changes influence stage-discharge and depth-discharge relations in rivers and in conveyance channels and navigation channels where water discharge is constant. The major influence is related to changes in bed configuration which accompanies water temperature changes. Stability analysis provides a theoretical basis for predicting bed-configuration changes, and using the theoretical relations with one empirical coefficient defined from field data, graphical relations...
Topics: DTIC Archive, CORPS OF ENGINEERS OMAHA NEBR, *HYDROLOGY, *RIVERS, VELOCITY, TEMPERATURE, SEASONAL...
