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The growing population in the Texas Lower Rio Grande Valley, shortfalls in water deliveries from Mexico, and multiple years of drought have placed an increased need for efficient water management and allocation in the Rio Grande Basin. These...
2007-11-19
2007-11-19
2003-07-01
Initial construction costs and net annual changes in operating and maintenance expenses are identified for a five-component capital renovation project proposed by Cameron County Irrigation District No. 2, (a.k.a. San Benito) to the Bureau of...
2007-11-19
2007-11-19
2003-07-01
Initial construction costs and net annual changes in operating and maintenance expenses are identified for a single-component capital renovation project proposed by Brownsville Irrigation District to the North American Development Bank (NADB) and...
2007-11-19
2007-11-19
2003-07-01
The Water Availability Model requires geospatial parameters to be used as inputs into the WRAP model. Previously these parameters were developed in ArcView 3.2 and processing suffered from performance and data management issues. This thesis...
2007-11-19
2007-11-19
2003-05-01
he purpose of this study was to evaluate variations of the Natural Resources Conservation Service (NRCS) curve number (CN) method for estimating near real-time runoff for naturalized flow, using high resolution radar rainfall data for watersheds...
2007-11-19
2007-11-19
2003-12-01
Initial construction costs and net annual changes in operating and maintenance expenses are identified for a single-component capital renovation project proposed by Hidalgo County Irrigation District No. 1 to the Bureau of Reclamation and North...
2007-11-19
2007-11-19
2003-09-01
Initial construction costs and net annual changes in operating and maintenance expenses are identified for a single-component capital renovation project proposed by Hidalgo County Irrigation District No. 1 to the Bureau of Reclamation and North...
2007-11-19
2007-11-19
2003-10-01
In 1997, the Texas Water Development Board identified George Parkhouse I on the South Sulphur River in northeast Texas as a potential reservoir site. This aquatic survey of a future reservoir site is designed to provide information about stream...
2007-11-19
2007-11-19
2002-12-31
Foodweb interactions, such as competition for limiting resources, are inherently non-linear. Consequently, they can give rise to chaotic, or undeterminable, population dynamics. Population dynamics are not always undeterminable, however, sometimes...
2007-11-20
2007-11-20
2003-12-01
Initial construction costs and net annual changes in operating and maintenance expenses are identified for a single-component capital renovation project proposed by Brownsville Irrigation District to the North American Development Bank (NADB) and...
2007-11-20
2007-11-20
2003-10-01
During the past 150 years, several Texas watersheds have undergone significant changes that affect land use, the amount of water flowing through these systems, water quality, and the numbers and types of fish and aquatic species that live in...
2007-11-20
2007-11-20
2003-12-01
The Texas Water Resources Institute (TWRI), and many other agencies and organizations, have worked with Ralph Wurbs over the years to develop WRAP (the Water Rights Analysis Package). The WRAP model simulates management of the water resources of a...
2007-11-20
2007-11-20
2003-08-01
The Texas Water Resources Institute (TWRI), and many other agencies and organizations, have worked with Ralph Wurbs over the years to develop WRAP (the Water Rights Analysis Package). The WRAP model simulates management of the water resources of a...
2007-11-20
2007-11-20
2003-08-01
I used a conceptual model proposed by Schlosser (1987) to compare channelized and unchannelized reaches of the South Sulphur River, Texas. This model suggests that fish assemblage structure can be predicted based on the level of habitat heteroge...
2007-11-20
2007-11-20
2003-08-01
Large floodplain rivers are spatially heterogeneous and temporally dynamic ecosystems. However, few studies have quantified the variation or species-environment relationships of fish assemblages in the main-channel of large rivers. Fishes were...
2007-11-20
2007-11-20
2003-12-01
The book describes the performance of pecan trees; water testing; determining how water quality may affect tree growth; improving drainage; selecting an irrigation system, and water conditioning to manage nutrients. It also describes how to...
2007-11-20
2007-11-20
2002-03-01
2007-11-20
2007-11-20
2014-07-28
A GIS-based hydrological/water quality model called Non Point Source Model (NPSM) was used to simulate various physical, chemical and biological processes taking place in the Leon Creek Watershed, near San Antonio, Texas. The model was then used...
2007-11-20
2007-11-20
2000-12-01
With the current population boom, the number of Texas residents will almost double by 2030. With the expected increase in demand for water, the scarcity of water is an urgent issue and research is being conducted to find ways to improve water...
2007-11-20
2007-11-20
2002-08-14
Texas faces a formidable challenge in meeting the water needs of its citizens as its population doubles over the next fifty years. To meet this challenge and to provide necessary flows of water for the environment, Texas will need to rely upon...
2007-11-26
2007-11-26
2002-09-01
With the settlement of Texas and establishment of ranchers to produce cattle, there was an effort to maximize beef production. This caused serious overgrazing. In addition, there was a reduced incidence of fires across the landscape to clear out...
2007-11-28
2007-11-28
2002-11-01
Initial construction costs and net annual changes in operating and maintenance expenses are identified for the capital renovation project proposed by Harlingen Irrigation District Cameron County No. 1 to the North American Development Bank...
2007-11-28
2007-11-28
2002-10-01
A mathematical discourse is provided, documenting the economic and financial methods used in RGIDECON, an Excel spreadsheet capital investment evaluation model focused on irrigation district-level pumping and delivery systems. These methods and...
2007-11-28
2007-11-28
2002-10-01
Initial construction costs and net annual changes in operating and maintenance expenses are identified for the capital renovation project proposed by Edinburg Irrigation District Hidalgo County No. 1 to the North American Development Bank...
2007-11-28
2007-11-28
2002-11-01
This report was completed for the Senate Bill 1 Rio Grande Regional Water Planning Project (Region M) by the District Management System (DMS) team under the direction of Dr. Guy Fipps. Funding was provided through the Texas Agricultural Experiment...
2007-11-28
2007-11-28
2001-08-01
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