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Stretched-grid Model Intercomparison Project: decadal regional climate simulations with enhanced variable and uniform-resolution GCMs

Journal Article · · Meteorology and Atmospheric Physics
 [1]; ; ; ; ;
  1. University of maryland
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Variable-resolution GCMs using a global stretched-grid (SG) with enhanced resolution over the region(s) of interest is an established approach to regional climate modeling providing an efficient means for regional down-scaling to mesoscales. This approach has been used since the early- mid 90s by the French, U.S., Canadian, Australian and other climate modeling groups along with, or as an alternative to, the current widely-used nested-grid approach. Stretched-grid GCMs are used for continuous climate simulations as usual GCMs, with the only difference that variable-resolution grids are used instead of more traditional uniform grids. The important advantages of variable-resolution stretched-grid GCMs are that they do not require any lateral boundary conditions=forcing and are free of the associated undesirable computational problems. As a result, stretched-grid GCMs provide self-consistent interactions between global and regional scales while a high quality of global circulation is preserved, as in uniform-grid GCMs. The international SGMIP-2 (Stretched-Grid Model Intercomparison Project, phase-2) includes 25-year (1979–2003) climate simulations using enhanced variable and uniform-resolution GCMs developed at major centers or groups in Australia, Canada, France and the U.S.

Research Organization:
Univ. of Maryland, College Park, MD (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
DOE Contract Number:
FG02-01ER63197
OSTI ID:
953650
Report Number(s):
DOE--0007185
Journal Information:
Meteorology and Atmospheric Physics, Journal Name: Meteorology and Atmospheric Physics Journal Issue: 1-4 Vol. 100; ISSN 0177-7971
Publisher:
Springer
Country of Publication:
United States
Language:
English

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