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The use of available potential energy to evaluate the impact of satellite data on numerical model analysis during FGGETo evaluate the effect of the FGGE satellite observing system, the following two data sets were compared by examining the available potential energy (APE) and extratropical cyclone activity within the entire global domain during the first Special Observing Period: (1) the complete FGGE IIIb set, which incorporates satellite soundings, and (2) a NOSAT set which incorporates only conventional data. The time series of the daily total APEs indicate that NOSAT values are larger than the FGGE values, although in the Northern Hemisphere the differences are negligible. Analyses of cyclone scale features revealed only minor differences between the Northern Hemisphere FGGE and NOSAT analyses. On the other hand, substantial differences were revealed in the two Southern Hemisphere analyses, where the satellite soundings apparently add detail to the FGGE set.
Document ID
19880043163
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Horn, Lyle H.
(Wisconsin Univ. Madison, WI, United States)
Koehler, Thomas L.
(Wisconsin Univ. Madison, WI, United States)
Whittaker, Linda M.
(Wisconsin, University Madison, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1988
Publication Information
Publication: Monthly Weather Review
Volume: 116
ISSN: 0027-0644
Subject Category
Meteorology And Climatology
Accession Number
88A30390
Funding Number(s)
CONTRACT_GRANT: NAG5-385
Distribution Limits
Public
Copyright
Other

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