A numerical, analytical and observational study of the effect of clouds on surface wind and wind stress during the central Arctic winter
Results of measurements from several Arctic field programs and numerical models show that clouds affect wind stress during the central Arctic winter by changing the longwave cooling of the surface and cloud layers. The longwave cooling alters the thermodynamic structure of the lower atmosphere which...
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Monterey, California. Naval Postgraduate School
1992
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Online Access: | https://hdl.handle.net/10945/23734 |
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ftnavalpschool:oai:calhoun.nps.edu:10945/23734 2024-06-09T07:42:51+00:00 A numerical, analytical and observational study of the effect of clouds on surface wind and wind stress during the central Arctic winter Guest, Peter Staples Davidson, Kenneth Meteorology Naval Postgraduate School 1992-03 177 p.;28 cm. application/pdf https://hdl.handle.net/10945/23734 en_US eng Monterey, California. Naval Postgraduate School https://hdl.handle.net/10945/23734 Arctic clouds Arctic wind stress Arctic longwave radiation Arctic winter CEAREX Arctic boundary layer Arctic surface layer ice movement pack ice Thesis 1992 ftnavalpschool 2024-05-15T00:51:48Z Results of measurements from several Arctic field programs and numerical models show that clouds affect wind stress during the central Arctic winter by changing the longwave cooling of the surface and cloud layers. The longwave cooling alters the thermodynamic structure of the lower atmosphere which in turn affects the efficiency of momentum transfer to the surface. For typical Arctic conditions, wind stress is changed by about 40% one hour after a cloud condition change, due to changes in both the surface layer stability and surface layer wind speed. The actual wind stress effect due to clouds during this time is a function of wind speed, thermal wind, atmospheric boundary layer depth, magnitude of radiation change, snow age and, sometimes, snow depth. After several hours, surface heat fluxes are no longer important, but the structure of the atmosphere has been permanently altered. This affects the wind stress by about 10% to 20% during certain situations, but can vary depending on the initial atmospheric structure. Measurements of these effects show variations in wind stress associated with clouds. Operational and research studies of ice and ocean dynamics will benefit from consideration of cloud effects on wind stress. Approved for public release; distribution is unlimited. Meteorologist, Naval Postgraduate School http://archive.org/details/anumericalnalyti1094523734 Thesis Arctic Naval Postgraduate School: Calhoun Arctic |
institution |
Open Polar |
collection |
Naval Postgraduate School: Calhoun |
op_collection_id |
ftnavalpschool |
language |
English |
topic |
Arctic clouds Arctic wind stress Arctic longwave radiation Arctic winter CEAREX Arctic boundary layer Arctic surface layer ice movement pack ice |
spellingShingle |
Arctic clouds Arctic wind stress Arctic longwave radiation Arctic winter CEAREX Arctic boundary layer Arctic surface layer ice movement pack ice Guest, Peter Staples A numerical, analytical and observational study of the effect of clouds on surface wind and wind stress during the central Arctic winter |
topic_facet |
Arctic clouds Arctic wind stress Arctic longwave radiation Arctic winter CEAREX Arctic boundary layer Arctic surface layer ice movement pack ice |
description |
Results of measurements from several Arctic field programs and numerical models show that clouds affect wind stress during the central Arctic winter by changing the longwave cooling of the surface and cloud layers. The longwave cooling alters the thermodynamic structure of the lower atmosphere which in turn affects the efficiency of momentum transfer to the surface. For typical Arctic conditions, wind stress is changed by about 40% one hour after a cloud condition change, due to changes in both the surface layer stability and surface layer wind speed. The actual wind stress effect due to clouds during this time is a function of wind speed, thermal wind, atmospheric boundary layer depth, magnitude of radiation change, snow age and, sometimes, snow depth. After several hours, surface heat fluxes are no longer important, but the structure of the atmosphere has been permanently altered. This affects the wind stress by about 10% to 20% during certain situations, but can vary depending on the initial atmospheric structure. Measurements of these effects show variations in wind stress associated with clouds. Operational and research studies of ice and ocean dynamics will benefit from consideration of cloud effects on wind stress. Approved for public release; distribution is unlimited. Meteorologist, Naval Postgraduate School http://archive.org/details/anumericalnalyti1094523734 |
author2 |
Davidson, Kenneth Meteorology Naval Postgraduate School |
format |
Thesis |
author |
Guest, Peter Staples |
author_facet |
Guest, Peter Staples |
author_sort |
Guest, Peter Staples |
title |
A numerical, analytical and observational study of the effect of clouds on surface wind and wind stress during the central Arctic winter |
title_short |
A numerical, analytical and observational study of the effect of clouds on surface wind and wind stress during the central Arctic winter |
title_full |
A numerical, analytical and observational study of the effect of clouds on surface wind and wind stress during the central Arctic winter |
title_fullStr |
A numerical, analytical and observational study of the effect of clouds on surface wind and wind stress during the central Arctic winter |
title_full_unstemmed |
A numerical, analytical and observational study of the effect of clouds on surface wind and wind stress during the central Arctic winter |
title_sort |
numerical, analytical and observational study of the effect of clouds on surface wind and wind stress during the central arctic winter |
publisher |
Monterey, California. Naval Postgraduate School |
publishDate |
1992 |
url |
https://hdl.handle.net/10945/23734 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
https://hdl.handle.net/10945/23734 |
_version_ |
1801371550323048448 |