Arctic Low Cloud Changes as Observed by MISR and CALIOP: Implication for the Enhanced Autumnal Warming and Sea Ice Loss
Retreat of Arctic sea ice extent has led to more evaporation over open water in summer and subsequent cloud changes in autumn. Studying recent satellite cloud data over the Arctic Ocean, we find that low (0.5-2 km) cloud cover in October has been increasing significantly during 2000-2010 over the Be...
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ftnasantrs:oai:casi.ntrs.nasa.gov:20120013650 2023-05-15T14:33:57+02:00 Arctic Low Cloud Changes as Observed by MISR and CALIOP: Implication for the Enhanced Autumnal Warming and Sea Ice Loss Wu, Dong L. Lee, Jae N. Unclassified, Unlimited, Publicly available [2012] application/pdf http://hdl.handle.net/2060/20120013650 unknown Document ID: 20120013650 http://hdl.handle.net/2060/20120013650 Copyright, Distribution as joint owner in the copyright CASI Meteorology and Climatology GSFC.JA.01283.2012 2012 ftnasantrs 2019-07-21T06:20:10Z Retreat of Arctic sea ice extent has led to more evaporation over open water in summer and subsequent cloud changes in autumn. Studying recent satellite cloud data over the Arctic Ocean, we find that low (0.5-2 km) cloud cover in October has been increasing significantly during 2000-2010 over the Beaufort and East Siberian Sea (BESS). This change is consistent with the expected boundary-layer cloud response to the increasing Arctic evaporation accumulated during summer. Because low clouds have a net warming effect at the surface, October cloud increases may be responsible for the enhanced autumnal warming in surface air temperature, which effectively prolong the melt season and lead to a positive feedback to Arctic sea ice loss. Thus, the new satellite observations provide a critical support for the hypothesized positive feedback involving interactions between boundary-layer cloud, water vapor, temperature and sea ice in the Arctic Ocean. Other/Unknown Material Arctic Arctic Ocean East Siberian Sea Sea ice NASA Technical Reports Server (NTRS) Arctic Arctic Ocean East Siberian Sea ENVELOPE(166.000,166.000,74.000,74.000) |
institution |
Open Polar |
collection |
NASA Technical Reports Server (NTRS) |
op_collection_id |
ftnasantrs |
language |
unknown |
topic |
Meteorology and Climatology |
spellingShingle |
Meteorology and Climatology Wu, Dong L. Lee, Jae N. Arctic Low Cloud Changes as Observed by MISR and CALIOP: Implication for the Enhanced Autumnal Warming and Sea Ice Loss |
topic_facet |
Meteorology and Climatology |
description |
Retreat of Arctic sea ice extent has led to more evaporation over open water in summer and subsequent cloud changes in autumn. Studying recent satellite cloud data over the Arctic Ocean, we find that low (0.5-2 km) cloud cover in October has been increasing significantly during 2000-2010 over the Beaufort and East Siberian Sea (BESS). This change is consistent with the expected boundary-layer cloud response to the increasing Arctic evaporation accumulated during summer. Because low clouds have a net warming effect at the surface, October cloud increases may be responsible for the enhanced autumnal warming in surface air temperature, which effectively prolong the melt season and lead to a positive feedback to Arctic sea ice loss. Thus, the new satellite observations provide a critical support for the hypothesized positive feedback involving interactions between boundary-layer cloud, water vapor, temperature and sea ice in the Arctic Ocean. |
format |
Other/Unknown Material |
author |
Wu, Dong L. Lee, Jae N. |
author_facet |
Wu, Dong L. Lee, Jae N. |
author_sort |
Wu, Dong L. |
title |
Arctic Low Cloud Changes as Observed by MISR and CALIOP: Implication for the Enhanced Autumnal Warming and Sea Ice Loss |
title_short |
Arctic Low Cloud Changes as Observed by MISR and CALIOP: Implication for the Enhanced Autumnal Warming and Sea Ice Loss |
title_full |
Arctic Low Cloud Changes as Observed by MISR and CALIOP: Implication for the Enhanced Autumnal Warming and Sea Ice Loss |
title_fullStr |
Arctic Low Cloud Changes as Observed by MISR and CALIOP: Implication for the Enhanced Autumnal Warming and Sea Ice Loss |
title_full_unstemmed |
Arctic Low Cloud Changes as Observed by MISR and CALIOP: Implication for the Enhanced Autumnal Warming and Sea Ice Loss |
title_sort |
arctic low cloud changes as observed by misr and caliop: implication for the enhanced autumnal warming and sea ice loss |
publishDate |
2012 |
url |
http://hdl.handle.net/2060/20120013650 |
op_coverage |
Unclassified, Unlimited, Publicly available |
long_lat |
ENVELOPE(166.000,166.000,74.000,74.000) |
geographic |
Arctic Arctic Ocean East Siberian Sea |
geographic_facet |
Arctic Arctic Ocean East Siberian Sea |
genre |
Arctic Arctic Ocean East Siberian Sea Sea ice |
genre_facet |
Arctic Arctic Ocean East Siberian Sea Sea ice |
op_source |
CASI |
op_relation |
Document ID: 20120013650 http://hdl.handle.net/2060/20120013650 |
op_rights |
Copyright, Distribution as joint owner in the copyright |
_version_ |
1766307103767527424 |