|dc.description.abstract||Water availability has been of great concern in the State of Texas and many other places worldwide. During 1997-2003, pursuant to the 1997 Senate Bill 1, the Texas
Commission on Environmental Quality (TCEQ), its partner agencies, and contractors
developed a Water Availability Modeling (WAM) System based on the Water Rights
Analysis Package (WRAP) model, developed at Texas A&M University. WAM has been
widely applied in the State of Texas and because of its convenience, applications, and
capabilities, it is planned to be implemented in other States and Countries.
This thesis addresses different aspects of WAM, including conditional reliability
modeling, firm yield analysis following classic and recently developed methodologies,
evaluating the impact of different considerations on reliability analyses, simplification of
complex WAM datasets and the display of WRAP results into ArcMap.
Conditional reliability modeling evaluates short term diversion/storage
reliabilities based on an initial storage level. WRAP-CON has been evaluated and
improved, in addition a new modeling methodology has been developed, in which
probabilities of occurrence for each hydrologic sequence is based on the relationship
between storage and future flows.
Recently developed WRAP capabilities have been evaluated, providing users
new tools and increased flexibility. Some of these improvements are firm yield analysis,
cycling and dual simulation.
In addition to improved software, guidelines have also been developed,
including a set to simplify extremely large WAM datasets, while maintaining the effect of
all the other water rights in a basin.||en