Typical global climate simulations use spatial resolutions of about 300 kilometers (186 miles), which limits their ability to simulate climate and climate change on a regional scale. For example, with these lower resolutions it is difficult to assess climate changes, and the resulting societal impacts, in the climatically varying regions within California.
The high-resolution global climate simulations were run on a number of large computers at LLNL and on two machines at the Department of Energy's National Energy Research Supercomputer Center (NERSC).
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