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Diagnostic analysis and spectral energetics of a blocking event in the GLAS climate model simulationA synoptic and spectral analysis of a blocking event is presented, with attention given to the temporal evolution, maintenance, and decay of the block. The GLAS numerical climate model was used to generate a blocking event by the introduction of SST anomalies. Wavenumbers 2 and 3 became stationary around their climatological locations, and their constructive interference produced persistent blocking ridges over the west coast of North America and the other over western Europe. Time variations of the kinetic and potential energies and energy conversions during the blocking were performed. Spectrally filtered Hovmoller diagrams were developed for the winter of 1976-77, and showed that long waves were stationary over most of the interval, which featured severe weather conditions.
Document ID
19830044162
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Chen, T.-C.
(Iowa State University of Science and Technology, Ames, IA, United States)
Shukla, J.
(NASA Goddard Space Flight Center Laboratory for Atmospheric and Biological Sciences, Greenbelt, MD, United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1983
Publication Information
Publication: Monthly Weather Review
Volume: 111
Subject Category
Meteorology And Climatology
Accession Number
83A25380
Distribution Limits
Public
Copyright
Other

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