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Accueil du site → Master → Etats Unis → 2011 → A multi-period model for optimal conjunctive management of surface and ground water for a semi-arid coastal region : Corpus Christi, TX

TEXAS A&M UNIVERSITY - KINGSVILLE (2011)

A multi-period model for optimal conjunctive management of surface and ground water for a semi-arid coastal region : Corpus Christi, TX

Arreola, Marcelo A., Jr.

Titre : A multi-period model for optimal conjunctive management of surface and ground water for a semi-arid coastal region : Corpus Christi, TX

Auteur : Arreola, Marcelo A., Jr.

Université de soutenance : TEXAS A&M UNIVERSITY - KINGSVILLE

Grade : Master of Science (MS) 2011

Résumé
The City of Corpus Christi, TX is currently contemplating the addition of an aquifer storage and recovery (ASR) facility to its existing interconnected Choke Canyon and Lake Corpus Christi reservoir system wherein available surplus surface water can be routed and stored to meet future demands. The present study develops and evaluates a decision support system (DSS) for the conjunctive management of the city’s surface and stored groundwater resources using a simulation-optimization approach. The objective of the model is to maximize water storage in the surface and subsurface storage units while meeting 1) the freshwater inflow requirements to the Corpus Christi estuary and 2) the water demands of the city and its service area. The model was parameterized using streamflow data from the U.S. Geological Survey gauging stations on the Nueces River and its tributaries as well as long term climatic data and regional hydrogeologic information. Model results indicate that a single-well field ASR facility is capable of storing ∼ 7,500 ac-ft of water over a five-year period in the Evangeline Aquifer. It was also determined that the surplus surface water or excess "pass thru" accounted for 49 to 96% of the water stored in the single-well field ASR. The remaining storage came from either Choke Canyon Reservoir or Lake Corpus Christi and resulted in a slight reduction in evaportranspiration from the reservoirs. The analysis indicates that the proposed ASR system is not limited on the supply side but multiple well fields will be required to increase the storage capacity within the aquifer.

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