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Friction- and mountain-torque estimates from global atmospheric dataSeasonal, zonal surface torques between the atmosphere and the earth are estimated and compared, using data from a number of independent sources. The mountain torque is computed both from surface pressure data and from isobaric height data. The friction torque is estimated from the oceanic stress data of Hellerman and Rosenstein. Results for the total torque are inferred from atmospheric angular momentum data. Finally, the globally integrated total torque is compared with astronomical observations of the earth's rotation rate. These comparisons help us to assess the quality of the different results. Zonal torques are also computed using results from a GFDL general circulation model of the atmosphere. A comparison with the corresponding results inferred from real data is presented and interpreted in terms of model accuracy.
Document ID
19840046603
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Wahr, J. M.
(Princeton University Princeton, NJ, United States)
Oort, A. H.
(NOAA, Geophysical Fluid Dynamics Laboratory, Princeton NJ, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1984
Publication Information
Publication: Journal of the Atmospheric Sciences
Volume: 41
ISSN: 0022-4928
Subject Category
Geophysics
Accession Number
84A29390
Funding Number(s)
CONTRACT_GRANT: NSF EAR-81-15903
CONTRACT_GRANT: NAS5-27341
CONTRACT_GRANT: NOAA-04-7-022-44017
Distribution Limits
Public
Copyright
Other

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