Using Climate Model Output to Assess the Impacts of Climate Change on Water Resources

by Robert M. Cushman, Oak Ridge Natl Lab, Oak Ridge, United States,



Document Type: Proceeding Paper

Part of: Water Resources Planning and Management and Urban Water Resources

Abstract: The use of general circulation models (GCMs) to provide climate data for regional assessments of the impacts of changing climate on water resources stretches the limits of what the models were designed for. Problems that must be addressed include disagreement on a regional scale among GCMs and between the modeled and observed climate; coarse spatial resolution of the models; and simplistic representation of surface hydrology. It is important that continued progress be made in developing the methodology for using GCM output in climate-impact assessments.

Subject Headings: Hydrologic models | Water resources | Climates | Water circulation | Scale models | Data processing | Terrain models

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