Figure : downscaling-fig

Climate Modeling for Smaller Regions

Figure A5.12

U.S. Global Change Research Program USGCRP
Matthew Dzaugis

This figure appears in chapter A5 of the Impacts, Risks, and Adaptation in the United States: The Fourth National Climate Assessment, Volume II report.

The figure shows projections of annual precipitation (in inches) in California and Nevada in a global climate model with a resolution of 100 miles (left) and, after using a statistical model to account for the effects of topography, at a resolution of 3.6-miles (right). The global model has only a few grid cells over the entire state of California, so it does not resolve the coastal mountain range, interior valley, or Sierra Nevada on the border with Nevada. The precipitation field in the right panel, by contrast, captures the wet conditions on the west slopes of the mountains and the dry, rain shadow region to the east of the mountains. The topography has been exaggerated for clarity and by the same amount in both panels. Source: UCSD Scripps Institute of Oceanography.

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This figure was created on June 09, 2017.

This figure was submitted on December 03, 2018.

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