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Page 6143, results 153551 - 153575

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Not all publications have extents, not all extents are completely accurate
Hydrologic- and salt-balance investigations utilizing digital models Lower San Luis Rey River area, San Diego County, California
Joe A. Moreland
1974, Water-Resources Investigations Report 74-24
The Joint Administration Committee of the Santa Margarita and San Luis Rey Watershed Planning Agencies was designated as the agency to conduct studies leading to the development of a comprehensive water-quality management plan for the two watersheds. Hydrologic and salt balances for the Pauma, Pala, Bonsall, and Mission ground-water basins...
Index of flood maps prepared by the U.S. Geological Survey through 1973
Philip Hadley Carrigan Jr.
1974, Water-Resources Investigations Report 73-57
A listing is presented of flood maps prepared by the U.S. Geological Survey through 1973. Maps are listed by State and county and the list provides information on the type of flooding depicted and the reliability of the delineation.The list was prepared from a computer file, and an available program...
Analog model study of the ground-water basin of the Upper Coachella Valley, California
Stephen J. Tyley
1974, Water Supply Paper 2027
An analog model of the ground-water basin of the upper Coachella Valley was constructed to determine the effects of imported water on ground-water levels. The model was considered verified when the ground-water levels generated by the model approximated the historical change in water levels of the ground-water basin caused by...
Hydrologic Unit Map -- 1974, State of Pennsylvania
Water Resources Division, U.S. Geological Survey
1974, Hydrologic Unit 39
This map and accompanying table show Hydrologic Units that are basically hydrographic in nature.  The Cataloging Units shown will supplant the Cataloging Units previously used by the U.S. Geological Survey in its Catalog of Information on Water Data (1966-72).  The previous U.S. Geological Survey Catalog-Indexing System was by map number...
Effects of urbanization on floods in the Dallas, Texas metropolitan area
George R. Dempster Jr.
1974, Water-Resources Investigations Report 73-60
The effects of urbanization on flood characteristics of streams in the Dallas metropolitan area were studied by use of a digital model of the hydrologic system. The model was calibrated by using observed rainfall and runoff data from 19 storms in six basins having various degrees of urbanization. The calibrated...
Time-dependent spectral analysis of thirty-one strong-motion earthquake records
Virgilio Perez
1974, Open-File Report 74-48
Velocity response spectral analysis as a function of time for 5 percent critical damping is presented for the horizontal components of thirty-one earthquake records (61 components). A nomograph that allows conversion of the velocity response envelope to a displacement response envelope and a pseudo-absolute acceleration response envelope spectrum is also...
Water resources data for Louisiana, water year 1973
Water Resources Division, U.S. Geological Survey
1974, Water Data Report LA-73-1
Water resources data for the 1973 water year for West Virginia including records of streamflow or reservoir storage at gaging stations, partial-record stations, and miscellaneous sites, records of water-quality data on the chemical and physical characteristics of surface water, and records of ground-water levels at index wells are given in...
Water resources data for Washington, water year 1973; Part 2, Water quality records
Water Resources Division, U.S. Geological Survey
1974, Water Data Report WA-73-2
Water resources data for the 1973 water year for Washington include records of data for the chemical and physical characteristics of surface water. Data on the quality of surface water (chemical, temperature, and sediment) were collected from designated sampling sites at predetermined intervals such as once daily, weekly, monthly or...