Browsing Technical and Special Reports by Title
Now showing items 393-412 of 510
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(Texas Water Resources Institute, 2009-07)
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(Texas Water Resources Institute, 2012-10-25)This study was conducted to assess soil salinity levels in large landscape areas, such as golf courses, parks, and school grounds which were developed on various soil types in El Paso, Texas. The survey encompassed the ...
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(Texas Water Resources Institute, 2008-05)With sharply increasing costs of providing potable water, many communities in the Southwest are attempting to utilize non-potable saline water for irrigating large landscapes. This publication provides the information ...
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(Texas Water Resources Institute, 1968-09)Studies were conducted in a closed system recirculating research flume to evaluate the relative effects of high intensity rainfall on von Karman's universal constant and the sediment transport capacity of shallow flow The ...
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(Texas Water Resources Institute, 1992-01)Texas law requires that fresh water inflows into coastal regions be maintained at adequate levels for an ecologically sound environment; however, very limited data are available on the relation between river flow and ...
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(Texas Water Resources Institute, 2011-04)This report summarizes seepage loss tests conducted in Cameron County Irrigation District No. 2 (CCID2) on five canal segments located as shown on the right.
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(Texas Water Resources Institute, 2002)The El Paso Del Norte Region, composed of the cities of El Paso, Texas; Las Cruces, New Mexico in the United States; and Ciudad Juarez, Chihuahua, in Mexico, is facing a severe drought and, as a result, a significant ...
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(Texas Water Resources Institute, 2008-10)
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(Texas Water Resources Institute, 1977-03)The long-observed relationships of an influence of drinking water mineral content on heart-circulatory deaths are developed to indicate that sodium -- when present in sufficiently high concentrations -- may be detrimental ...
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(Texas Water Resources Institute, 2002)The objective of this study is to develop an analytical method that uses readily available instrumentation and minimal sample preparation for the determination of stable lodine species at nanomolar concentration levels in ...
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(Texas Water Resources Institute, 2002-06)In order to more effectively use iodine isotope ratios, 129I/127I, as hydrological and geochemical tracers in aquatic systems, a new HPLC method was developed for the determination of iodine speciation. The dissolved iodine ...
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(Texas Water Resources Institute, 2008-10)The Seymour Aquifer is a shallow aquifer underlying over 300,000 acres in 20 counties in northwest central Texas. High nitrate concentrations are widespread in the Seymour Aquifer. Median nitrate levels in Knox, Haskell, ...
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(Texas Water Resources Institute, 1966-07)Twenty-two shallow, reversed, seismic refraction profiles were conducted in the Brazos River floodplain to test the feasibility of using seismic methods to provide hydrogeologic information in this province. The specific ...
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(Texas Water Resources Institute, 2002)Divergent natural selection (fitness trade-offs) between environments often drives intraspecific diversification. When multiple species face a common environmental gradient their patterns of divergence might exhibit both ...
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(Texas Water Resources Institute, 1978-02-01)Southern forests are expected to supply a large portion of the Nation's future timber requirement. Projected demands on southern forests continue to exceed allowable cut. As an outgrowth of this demand, intensive management ...
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(Texas Water Resources Institute, 2010-08-23)Reservoir storage reduces fluctuation in streamflow salinity, yet increases outflow salinity because of water evaporation. These processes are highly relevant to developing water management strategy, yet the method to ...
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(Texas Water Resources Institute, 2002)
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(Texas Water Resources Institute, 1976-09)A three-dimensional model describing the two-phase (air-water) fluid flow equations in an integrated saturated-unsaturated porous medium was developed. Also, a three-dimensional convective-dispersion equation describing ...
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(Texas Water Resources Institute, 1983-09)C. E. Jacob received patents in 1965 for a single location well doublet that would produce fresh water overlying salt-water without upconing of the heavier salt-water and pollution of the fresh water zone. No known evaluation ...
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(Texas Water Resources Institute, 2002)In March of 2002, Nyland Falkenberg was awarded a $5,000 grant from TWRI to work with researcher Giovanni Piccinni at the Texas A&M Agricultural Research and Extension Center in Uvalde. The focus of this project, which is ...