Short-term climatic fluctuations forced by thermal anomalies

A 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...

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Bibliographic Details
Main Author: Hanna, A. F.
Format: Other/Unknown Material
Language:unknown
Published: 1982
Subjects:
METEOROLOGY AND CLIMATOLOGY
Sea ice
Online Access:http://hdl.handle.net/2060/19830006551
id ftnasantrs:oai:casi.ntrs.nasa.gov:19830006551
record_format openpolar
spelling ftnasantrs:oai:casi.ntrs.nasa.gov:19830006551 2023-05-15T18:18:13+02:00 Short-term climatic fluctuations forced by thermal anomalies Hanna, A. F. Unclassified, Unlimited, Publicly available Nov 1, 1982 application/pdf http://hdl.handle.net/2060/19830006551 unknown Document ID: 19830006551 Accession ID: 83N14822 http://hdl.handle.net/2060/19830006551 No Copyright CASI METEOROLOGY AND CLIMATOLOGY NASA-CR-169685 NAS 1.26:169685 ASP-360 (ISSN 0067-0340) 1982 ftnasantrs 2019-07-21T10:08:53Z A 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. Other/Unknown Material Sea ice NASA Technical Reports Server (NTRS)
institution Open Polar
collection NASA Technical Reports Server (NTRS)
op_collection_id ftnasantrs
language unknown
topic METEOROLOGY AND CLIMATOLOGY
spellingShingle METEOROLOGY AND CLIMATOLOGY
Hanna, A. F.
Short-term climatic fluctuations forced by thermal anomalies
topic_facet METEOROLOGY AND CLIMATOLOGY
description A 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.
format Other/Unknown Material
author Hanna, A. F.
author_facet Hanna, A. F.
author_sort Hanna, A. F.
title Short-term climatic fluctuations forced by thermal anomalies
title_short Short-term climatic fluctuations forced by thermal anomalies
title_full Short-term climatic fluctuations forced by thermal anomalies
title_fullStr Short-term climatic fluctuations forced by thermal anomalies
title_full_unstemmed Short-term climatic fluctuations forced by thermal anomalies
title_sort short-term climatic fluctuations forced by thermal anomalies
publishDate 1982
url http://hdl.handle.net/2060/19830006551
op_coverage Unclassified, Unlimited, Publicly available
genre Sea ice
genre_facet Sea ice
op_source CASI
op_relation Document ID: 19830006551
Accession ID: 83N14822
http://hdl.handle.net/2060/19830006551
op_rights No Copyright
_version_ 1766194729137995776

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