Systematization of water allocation systems: an engineering approach

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Title: Systematization of water allocation systems: an engineering approach
Author: Santos Roman, Deborah Matilde
Abstract: The allocation of water resources is typically accomplished within the framework of water allocation systems (WAS ) . In general , a WAS sets priorities , applies rules , and organizes responses to a range of water allocation scenarios . This research presents a comprehensive study of water allocation strategies and provides a conceptual framework of principles and guidelines for designing , assessing , implementing and supporting WAS . The voluminous compilation of international treaties and conventions , interstate compacts , intrastate administrative documentation , and scientific /engineering literature was researched in order to identify different water allocation strategies and mechanisms . From this analysis eight fundamental areas of WAS were identified : water rights , determination of water allotment , administrative systems , reservoir storage considerations , system reliability , multiple uses , instream flow requirements , and drought management . The systematic scrutiny of these eight areas at the international , interstate , and intrastate levels defined the conceptual framework for assessing WAS . The Texas experience with regard to its Water Availability Modeling system is also reviewed with particular emphasis on the application of the Water Rights Analysis Package (WRAP ) model in supporting water allocation efforts . The Lower Rio Grande WAS was used as a case study to demonstrate how the principles presented in the conceptual framework can be used to assess water allocation issues and identify alternative strategies . Three WRAP simulation studies utilizing several components of the conceptual framework were performed in order to assess the Lower Rio Grande WAS . The simulations focused on three of the major water allocation issues of the Texas Rio Grande : reallocation among uses , instream flow requirements , and drought management . The simulations showed several deficiencies in the Lower Rio Grande WAS , particularly regarding the size of the domestic -municipal -industrial (DMI ) reserve and its effect on the reliability of other uses . The simulation results suggest that water from the DMI can be liberated to be used by irrigators and to support environmental flows without affecting the reliability to municipal users . Several strategies were proposed that can potentially improve the overall efficiency of the system . Nonetheless , implementing new strategies and water allocation policies in the Lower Rio Grande WAS would require considerable changes in regulation policies .
URI: http : / /hdl .handle .net /1969 .1 /4909
Date: 2007-04-25

Citation

Systematization of water allocation systems: an engineering approach. Available electronically from http : / /hdl .handle .net /1969 .1 /4909 .

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