Accession Number : ADA442570


Title :   Watershed Models for Decision Support in the Yakima River Basin, Washington


Corporate Author : DEPARTMENT OF THE INTERIOR WASHINGTON DC


Personal Author(s) : Mastin, M. C. ; Vaccaro, J. J.


Full Text : http://www.dtic.mil/get-tr-doc/pdf?AD=ADA442570


Report Date : 2002


Pagination or Media Count : 55


Abstract : A Decision Support System (DSS) is being developed by the U.S. Geological Survey and the Bureau of Reclamation as part of a long-term project, the Watershed and River Systems Management Program. The goal of the program is to apply the DSS to U.S. Bureau of Reclamation projects in the western United States. The DSS was applied to the Reclamations's Yakima Project in the Yakima River Basin in eastern Washington. An important component of the DSS is the physical hydrology modeling. For the application to the Yakima River Basin, the physical hydrology component consisted of constructing four watershed models using the U.S. Geological Survey's Precipitation-Runoff Modeling System within the Modular Modeling System. The implementation of these models is described. To facilitate calibration of the models, mean annual streamflow also was estimated for ungaged subbasins. The models were calibrated for water years 1950-94 and tested for water years 1995-98. The integration of the models in the DSS for realtime water-management operations using an interface termed the Object User Interface is also described. The models were incorporated in the DSS for use in long-term to short-term planning and have been used in a real-time operational mode since water year 1999.


Descriptors :   *RIVERS , *WATERSHEDS , *DECISION SUPPORT SYSTEMS , *BASINS(GEOGRAPHIC) , UNITED STATES , PHYSICAL PROPERTIES , WATER , MODULAR CONSTRUCTION , SYSTEMS MANAGEMENT , WEST(DIRECTION) , HYDROLOGY , USER NEEDS , CALIBRATION , GEOLOGICAL SURVEYS


Subject Categories : GEOGRAPHY
      HYDROLOGY, LIMNOLOGY AND POTAMOLOGY


Distribution Statement : APPROVED FOR PUBLIC RELEASE