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The 1997/98 El Nino [electronic resource] : A Test for Climate Models

Published
Washington, D.C. : United States. Dept. of Energy, 2004.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
page(s) PDF-FILE: 16;SIZE: 1.2 MBYTES
Additional Creators
Lawrence Livermore National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
Version 3 of the Hadley Centre Atmospheric Model (HadAM3) has been used to demonstrate one means of comparing a general circulation model with observations for a specific climate perturbation, namely the strong 1997/98 El Nino. This event was characterized by the collapse of the tropical Pacific's Walker circulation, caused by the lack of a zonal sea surface temperature gradient during the El Nino. Relative to normal years, cloud altitudes were lower in the western portion of the Pacific and higher in the eastern portion. HadAM3 likewise produced the observed collapse of the Walker circulation, and it did a reasonable job of reproducing the west/east cloud structure changes. This illustrates that the 1997/98 El Nino serves as a useful means of testing cloud-climate interactions in climate models.
Report Numbers
E 1.99:ucrl-jrnl-202755
ucrl-jrnl-202755
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Note
Published through SciTech Connect.
03/05/2004.
"ucrl-jrnl-202755"
Geophysical Research Letters 31 ISSN 0094-8276; GPRLAJ FT
Potter, G L; Dong, B; Cess, R D; Lu, R.
Funding Information
W-7405-ENG-48
View MARC record | catkey: 14132584