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Short-term climatic fluctuations forced by thermal anomaliesA two level, global, spectral model using pressure as a vertical coordinate was developed. The system of equations describing the model is nonlinear and quasi-geostrophic (linear balance). Static stability is variable in the model. A moisture budget is calculated in the lower layer only. Convective adjustment is used to avoid supercritical temperature lapse rates. The mechanical forcing of topography is introduced as a vertical velocity at the lower boundary. Solar forcing is specified assuming a daily mean zenith angle. The differential diabatic heating between land and sea is paramterized. On land and sea ice surfaces, a steady state thermal energy equation is solved to calculate the surface temperature. On the oceans, the sea surface temperature is specified as the climatological average for January. The model is used to simulate the January, February and March circulations.
Document ID
19830006551
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Hanna, A. F.
(Colorado State Univ. Fort Collins, CO, United States)
Date Acquired
September 4, 2013
Publication Date
November 1, 1982
Publication Information
ISSN: 0067-0340
Subject Category
Meteorology And Climatology
Report/Patent Number
NAS 1.26:169685
ASP-360
NASA-CR-169685
Accession Number
83N14822
Funding Number(s)
CONTRACT_GRANT: NAG5-136
CONTRACT_GRANT: NSF ATM-80-16867
CONTRACT_GRANT: DE-AS02-76EV-01340
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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