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On the sensitivity of a residual circulation model to differences in input temperature dataThe residual mean circulation (RMC) formulation of zonally averaged transport in the middle atmosphere produces a circulation which depends on the distributions of net diabatic heating and temperature. Such circulations are from two temperature data sets, using the same radiative transfer code (Rosenfield et al. 1987). These circulations are then used to transport N2O in a photochemical model. The circulations and the resulting N2O distributions are notably different during the Northern Hemisphere winter, with that based on the NMC temperatures producing too much upward transport in the tropical stratosphere, as judged by comparison with the stratospheric and mesoscale sounder data. The experiment demonstrates that model calculations, in general, and perturbation assessments, in particular, are likely to be quite sensitive to the choice of input temperature data (where this is not computed self-consistently). It also reveals what appears to be a seasonally dependent bias in NMC zonally averaged temperatures with respect to those obtained from the LIMS instrument during 1978/1979.
Document ID
19900037817
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Guthrie, Paul D.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Jackman, Charles H.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Rosenfield, Joan E.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Kucsera, Tom L.
(Applied Research Corp. Lanham, MD, United States)
Date Acquired
August 14, 2013
Publication Date
January 20, 1990
Publication Information
Publication: Journal of Geophysical Research
Volume: 95
ISSN: 0148-0227
Subject Category
Meteorology And Climatology
Accession Number
90A24872
Distribution Limits
Public
Copyright
Other

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