Extended Abstract (28K)25.6
Sparse Matrix Techniques for Coupling Independent Hydrological and Meteorological Models
Carlie J. Coats, Baron Advanced Meteorological Systems, Research Triangle Park, NC; and C. Peters-Lidard
Grid-to-grid, grid-to-watershed, and similar geospatial transforms can very efficiently be realized by sparse matrix technology. Such transforms are particularly useful for the grid cell to/from watershed mappings needed for coupling watershed-based hydrological models with grid-cell based meteorological models. We have used these transforms for coupling the TOPLATS hydrological model with both the MM5 meteorological model and the NEXRAD Stage IV precipitation analyses, and for various other model couplings. We describe the advantages of this technique, as compared with other techniques, which frequently are purely grid-based.
Session 25, Model Numerics
Thursday, 15 January 2004, 3:30 PM-5:00 PM, Room 607
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