Abstract
 Modeling Ungauged Tributaries Using GIS and System Dynamics Track: Water Resources Author(s): Carlos Aragón, Leonard Malczynski, Enrique Vivoni, Vincent Tidwell, Sarah Gonzales While there are many instrumented basins throughout the world, the majority of watersheds that act as tributaries remain ungauged, in particular for semiarid areas. In this study, we will present results from the application of a semidistributed watershed model in the Río Salado basin, New Mexico. The model is formulated in Powersim Studio 2005, a system dynamics software able to represent physical equations in a graphical manner. Geographic information systems are used to both preprocess data into the model domain (e.g., hydrological response units) and to postprocess spatial model results. For example, by processing data in ArcMap and Arc Hydro, land surface properties of a tributary can be used as input parameters for the model. The goal of this project is to combine current GIS tools with a dynamic watershed model to create maps depicting an estimate of the contributions of ungauged, semiarid tributaries, such as the Río Salado, to larger main stem rivers. Carlos Aragón New Mexico Institute of Mining and Technology Earth & Environmental Sciences - Hydrology 801 Leroy Pl. ####2525 Socorro , NM 87801 US Phone: 505-835-5591 E-mail: carloco@nmt.edu Leonard Malczynski Sandia National Laboratories Geohydrology PO Box 5800 Albuquerque , NM 87185 US Phone: 505-844-7219 E-mail: lamalcz@sandia.gov Enrique Vivoni New Mexico Institute of Mining and Technology Earth & Environmental Sciences - Hydrology 801 Leroy Pl. MSEC Socorro , NM 87801 US Phone: 505 835-5611 E-mail: vivoni@nmt.edu Vincent Tidwell Sandia National Laboratories Geohydrology PO Box 5800 Albuquerque , NM 87185 US Phone: 505 844-6025 E-mail: vctidwe@sandia.gov Sarah Gonzales New Mexico Institute of Mining and Technology Earth & Environmental Sciences - Hydrology 801 Leroy PL MSEC Socorro , NM 87801 US Phone: 505-835-5591 E-mail: sgonzale@nmt.edu |
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