Cloud phase and the surface energy balance of the arctic an investigation of mixed-phase clouds
This study examines the phase relationship (liquid versus ice) in Arctic clouds Although it is recognized that clouds are fundamental components of the surface energy balance, the nature of Arctic cloud phase is poorly understood and may have important implications for feedbacks associated with the...
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Monterey California. Naval Postgraduate School
2008
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ftnavalpschool:oai:calhoun.nps.edu:10945/4212 2024-06-09T07:43:01+00:00 Cloud phase and the surface energy balance of the arctic an investigation of mixed-phase clouds Kripchak, Kristopher J. Guest, Peter Naval Postgraduate School (U.S.) Meteorology Murphree, Tom 2008-03 xviii, 63 p. : ill. application/pdf https://hdl.handle.net/10945/4212 en_US eng Monterey California. Naval Postgraduate School 227343966 https://hdl.handle.net/10945/4212 Clouds Arctic regions Meteorology Atmospheric radiation Terrestrial radiation Ocean-atmosphere interaction Thesis 2008 ftnavalpschool 2024-05-15T01:05:57Z This study examines the phase relationship (liquid versus ice) in Arctic clouds Although it is recognized that clouds are fundamental components of the surface energy balance, the nature of Arctic cloud phase is poorly understood and may have important implications for feedbacks associated with the rapid disappearance of sea ice. This study uses the annual cycle of cloud, radiation, and meteorological measurements made as part of the Surface Heat Budget of the Arctic Ocean field program to derive empirical relationships for cloud liquid fraction as a function of observed variables. Relative to each other, single-layer liquid, ice, and mixed-phase clouds occurred 17.6%, 39.4%, and 42.9% of the time, respectively. The dominant role that mixed-phase clouds play in the surface energy balance of the Arctic was confirmed, emphasizing the need for their correct parameterization in models at all scales. A linear fit of liquid fraction to cloud base temperature between -36oC and +2oC predicts 35% of the fraction variance. Including the observed variables of cloud base height and surface wind speed as predictors predicts another 10%. Approved for public release; distribution is unlimited. US Air Force (USAF) author. http://archive.org/details/cloudphasendsurf109454212 Thesis Arctic Arctic Ocean Sea ice Surface Heat Budget of the Arctic Ocean Naval Postgraduate School: Calhoun Arctic Arctic Ocean |
institution |
Open Polar |
collection |
Naval Postgraduate School: Calhoun |
op_collection_id |
ftnavalpschool |
language |
English |
topic |
Clouds Arctic regions Meteorology Atmospheric radiation Terrestrial radiation Ocean-atmosphere interaction |
spellingShingle |
Clouds Arctic regions Meteorology Atmospheric radiation Terrestrial radiation Ocean-atmosphere interaction Kripchak, Kristopher J. Cloud phase and the surface energy balance of the arctic an investigation of mixed-phase clouds |
topic_facet |
Clouds Arctic regions Meteorology Atmospheric radiation Terrestrial radiation Ocean-atmosphere interaction |
description |
This study examines the phase relationship (liquid versus ice) in Arctic clouds Although it is recognized that clouds are fundamental components of the surface energy balance, the nature of Arctic cloud phase is poorly understood and may have important implications for feedbacks associated with the rapid disappearance of sea ice. This study uses the annual cycle of cloud, radiation, and meteorological measurements made as part of the Surface Heat Budget of the Arctic Ocean field program to derive empirical relationships for cloud liquid fraction as a function of observed variables. Relative to each other, single-layer liquid, ice, and mixed-phase clouds occurred 17.6%, 39.4%, and 42.9% of the time, respectively. The dominant role that mixed-phase clouds play in the surface energy balance of the Arctic was confirmed, emphasizing the need for their correct parameterization in models at all scales. A linear fit of liquid fraction to cloud base temperature between -36oC and +2oC predicts 35% of the fraction variance. Including the observed variables of cloud base height and surface wind speed as predictors predicts another 10%. Approved for public release; distribution is unlimited. US Air Force (USAF) author. http://archive.org/details/cloudphasendsurf109454212 |
author2 |
Guest, Peter Naval Postgraduate School (U.S.) Meteorology Murphree, Tom |
format |
Thesis |
author |
Kripchak, Kristopher J. |
author_facet |
Kripchak, Kristopher J. |
author_sort |
Kripchak, Kristopher J. |
title |
Cloud phase and the surface energy balance of the arctic an investigation of mixed-phase clouds |
title_short |
Cloud phase and the surface energy balance of the arctic an investigation of mixed-phase clouds |
title_full |
Cloud phase and the surface energy balance of the arctic an investigation of mixed-phase clouds |
title_fullStr |
Cloud phase and the surface energy balance of the arctic an investigation of mixed-phase clouds |
title_full_unstemmed |
Cloud phase and the surface energy balance of the arctic an investigation of mixed-phase clouds |
title_sort |
cloud phase and the surface energy balance of the arctic an investigation of mixed-phase clouds |
publisher |
Monterey California. Naval Postgraduate School |
publishDate |
2008 |
url |
https://hdl.handle.net/10945/4212 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Sea ice Surface Heat Budget of the Arctic Ocean |
genre_facet |
Arctic Arctic Ocean Sea ice Surface Heat Budget of the Arctic Ocean |
op_relation |
227343966 https://hdl.handle.net/10945/4212 |
_version_ |
1801371750668173312 |