HR: 0800h
AN: H11B-1258    [Abstracts]
TI: A Catchment-based River Routing Approach With Explicit Surface Water Bodies
AU: * Goteti, G
EM: ggoteti@uci.edu
AF: Department of Earth System Science, Croul Hall, University of California, Irvine, CA 92697 United States
AU: Famiglietti, J
EM: jfamigli@uci.edu
AF: Department of Earth System Science, Croul Hall, University of California, Irvine, CA 92697 United States
AU: Asante, K
EM: asante@usgs.gov
AF: USGS, EROS Data Center, Sioux Falls, SD 57198 United States
AB: The relatively new concept of the watershed serving as the fundamental land surface modeling unit is utilized in this study to route runoff in selected river basins. The distinguishing characteristic of our approach is that the land surface is represented as a mosaic of hydrologic catchments (or watersheds) and surface water bodies (lakes, wetlands, reservoirs and river channels), the interconnectivity provided by a routing model. This modeling approach not only has the potential to quantify the biogeochemical and biogeophysical fluxes from seasonally varying surface water bodies, but also to assimilate in-situ streamflow and altimetric observations of stream and lake elevations. Compared to the conventional grid-based approaches, this approach will be more suitable in studying interactions of hydrologic and biogeochemical cycles in a coupled Earth system framework. The routing model, which is based on the Geospatial Streamflow Model from the USGS EROS Data Center, is fed by simulated runoff from the NCAR Community Land Model. The simulated streamflow is compared with streamflow from other models and also with observed streamflow.
DE: 1804 Catchment
DE: 1805 Computational hydrology
DE: 1847 Modeling
DE: 1860 Streamflow
DE: 1879 Watershed
SC: Hydrology [H]
MN: Fall Meeting 2005