Publications
Scientific reports, journal articles, or general interest publications by USGS scientists in the Oklahoma-Texas Water Science Center are listed below. Publications span from 1898 to the present.
Filter Total Items: 1551
Evaluation of the use of remote-sensing data to identify crop types and estimate irrigated acreage, Uvalde and Medina counties, Texas, 1989 Evaluation of the use of remote-sensing data to identify crop types and estimate irrigated acreage, Uvalde and Medina counties, Texas, 1989
Remote-sensing data were used to estimate that 190,000 acre-feet of water was pumped from the Edwards aquifer in 1989 to irrigate crops in Uvalde and Medina Counties. Landsat digital satellite images for March and July 1989 were combined and classified to identify the areas of crops irrigated with water from the Edwards aquifer in the two counties. Normalized difference, the difference...
Authors
L.H. Raymond, G.M. Nalley, P.L. Rettman
Documentation of finite-element mesh generation programs using a geographic information system Documentation of finite-element mesh generation programs using a geographic information system
No abstract available.
Authors
R.A. Lowther, E. L. Kuniansky
Compilation of hydrologic data for the Edwards Aquifer, San Antonio area, Texas, 1991 : with 1934-91 summary Compilation of hydrologic data for the Edwards Aquifer, San Antonio area, Texas, 1991 : with 1934-91 summary
No abstract available.
Authors
D.S. Brown, B.L. Petri, G.M. Nalley
Configuration of the base of the Edwards-Trinity aquifer system and hydrogeology of the underlying pre-Cretaceous rocks, west-central Texas Configuration of the base of the Edwards-Trinity aquifer system and hydrogeology of the underlying pre-Cretaceous rocks, west-central Texas
The Edwards-Trinity aquifer system is underlain by an extensive complex of rocks, ranging from Late Cambrian through Late Triassic in age, that are typically about 10 to perhaps 1,000 times less permeable than those composing the aquifer system. The Cretaceous rocks of the aquifer system are separated from the pre-Cretaceous rocks by an unconformity that spans about 60 million years of...
Authors
Rene A. Barker, Ann F. Ardis
Water quality of the Edwards Aquifer and streams recharging the aquifer in the San Antonio region, Texas Water quality of the Edwards Aquifer and streams recharging the aquifer in the San Antonio region, Texas
The Edwards aquifer in south-central Texas is one of the most productive and most important aquifers in the State, with an average annual discharge of about 608,000 acre-ft of water during 1932-82 (Reeves and Ozuna, 1985). The Edwards aquifer is the principal source of water for municipal, industrial, and irrigation use in all or parts of five counties- Bexar, Comal, hays, Medina, and...
Authors
W.R. Roddy
Hydrogeologic maps of the central Oklahoma aquifer, Oklahoma Hydrogeologic maps of the central Oklahoma aquifer, Oklahoma
This report presents hydrogeologic maps of the Central Oklahoma aquifer. The maps were prepared by measuring water levels in wells during the winder of 1986 and 1987; examination of geophysical logs to determine the altitudes of the top of selected geologic units and the base of fresh ground water; and compilation of existing information on the stratigraphy of selected geologic units and...
Authors
Scott C. Christenson, Robert B. Morton, Benard A. Mesander
Water resources data Texas, water year 1991, volume 3. Colorado River basin, Lavaca River basin, Guadalupe River basin, Nueces River basin, Rio Grande basin, and intervening coastal basins Water resources data Texas, water year 1991, volume 3. Colorado River basin, Lavaca River basin, Guadalupe River basin, Nueces River basin, Rio Grande basin, and intervening coastal basins
No abstract available.
Authors
H.D. Buckner, W.J. Shelby
Water resources data Texas, water year 1991, volume 4. Ground water Water resources data Texas, water year 1991, volume 4. Ground water
No abstract available.
Authors
S. C. Gandara, H.D. Buckner
Water resources data Texas, water year 1991, volume 1. Arkansas River basin, Red River basin, Sabine River basin, Neches River basin, Trinity River Basin, and intervening coastal basins Water resources data Texas, water year 1991, volume 1. Arkansas River basin, Red River basin, Sabine River basin, Neches River basin, Trinity River Basin, and intervening coastal basins
No abstract available.
Authors
H.D. Buckner, W.J. Shelby
Summary of hydrologic data for the San Gabriel River basin and Edwards Aquifer, Georgetown area, Texas, water year 1990 Summary of hydrologic data for the San Gabriel River basin and Edwards Aquifer, Georgetown area, Texas, water year 1990
The Edwards aquifer is the principal source of freshwater for municipal, domestic, and industrial users in the Georgetown area. Other sources of freshwater are Lake Georgetown and the streams draining the San Gabriel River basin. Lake Georgetown, located on the North Fork San Gabriel River west of Georgetown, is a freshwater supply for some municipalities in the area. Water in the San...
Authors
William E. Reeves, Larry F. Land
Approximate water-level changes in wells completed in the Chicot and Evangeline aquifers, 1991-92 in Fort Bend County and adjacent areas, Texas Approximate water-level changes in wells completed in the Chicot and Evangeline aquifers, 1991-92 in Fort Bend County and adjacent areas, Texas
This report was prepared in cooperation with the Fort Bend Subsidence District, and presents data on water-level changes during 1991-92 in the Chicot and Evangeline aquifer (fig. 1-2) in Fort Bend County. Water-level change maps were prepared previously by Locke (1990),and Locke and Barbie (1991), for both aquifers, and by Wesselman (1972) for the Chicot aquifer.
Authors
Glenn L. Locke, Horatio X. Santos
Documentation of a data base on lake and reservoir water quality in the United States Documentation of a data base on lake and reservoir water quality in the United States
The report describes the procedures used to select, retrieve, compile, and screen a lake and reservoir data base from the STORET (STOrage and RETrieval) system of the U.S. Environmental Protection Agency. Procedures used to select, compile, and screen the size of the data base also are discussed. The retrieved data comprise 116 water-quality and biological constituents and physical and
Authors
Walter R. Rast