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WATER RESOURCES RESEARCH, VOL. 35, NO. 4, PAGES 1155–1164, 1999

Geographic Information Systems (GIS)-Based Spatially Distributed Model for Runoff Routing

Francisco Olivera

Center for Research in Water Resources, J. J. Pickle Research Campus, University of Texas at Austin


David Maidment

Center for Research in Water Resources, J. J. Pickle Research Campus, University of Texas at Austin


Abstract

A method is proposed for routing spatially distributed excess precipitation over a watershed to produce runoff at its outlet. The land surface is represented by a (raster) digital elevation model from which the stream network is derived. A routing response function is defined for each digital elevation model cell so that water movement from cell to cell can be convolved to give a response function along a flow path and responses from all cells can be summed to give the outlet hydrograph. An example application of analysis of runoff on Waller Creek in Austin, Texas, is presented.

Received 10 August 1998; accepted 24 November 1998.

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Citation: Olivera, F., and D. Maidment (1999), Geographic Information Systems (GIS)-Based Spatially Distributed Model for Runoff Routing, Water Resour. Res., 35(4), 1155–1164.