October Cloud Increases Over the Arctic Ocean as Observed by MISR and CALIPSO
The Beaufort and East Siberian Sea (BESS) shows a large increase in surface air temperature (SAT) in the recent decade for months of Sep-Nov, and NASA's Terra satellite have provided valuable measurements for this important decade of the intensified Arctic warming. In particular, MISR data sinc...
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ftnasantrs:oai:casi.ntrs.nasa.gov:20110023327 2023-05-15T14:37:41+02:00 October Cloud Increases Over the Arctic Ocean as Observed by MISR and CALIPSO Lee, Jae N. Wu, Dong L. Unclassified, Unlimited, Publicly available September 25, 2011 application/pdf http://hdl.handle.net/2060/20110023327 unknown Document ID: 20110023327 http://hdl.handle.net/2060/20110023327 No Copyright CASI Meteorology and Climatology GSFC.ABS.5372.2011 2011 International Arctic Scientific Science Committee (IASC) Atmosphere Working Group Workshop on Arctic Measurements; 26-27 Sep. 2011; Potsdam; Germany 2011 ftnasantrs 2019-07-21T00:56:49Z The Beaufort and East Siberian Sea (BESS) shows a large increase in surface air temperature (SAT) in the recent decade for months of Sep-Nov, and NASA's Terra satellite have provided valuable measurements for this important decade of the intensified Arctic warming. In particular, MISR data since 2000 and CALIPSO cloud measurements since 2006 reveal a significant increase of low cloud cover in October, which is largest in the daylight Arctic months (March-October). Causes of the warming remain unclear; but increased absorption of summer solar radiation and autumn low cloud formation have been suggested as a positive ice-temperature-cloud feedback in the Arctic. The observed increase of low cloud cover supports the theorized positive ice-temperature-cloud feedback, whereby more open water in the Arctic Ocean increases summer absorption of solar radiation, and subsequent evaporation, which leads to more low clouds in autumn. Trapping longwave radiation, these clouds effectively lengthen the melt season and reduce perennial ice pack formation, making sea ice more vulnerable to the next melt season Other/Unknown Material Arctic Arctic Ocean East Siberian Sea ice pack 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 Lee, Jae N. Wu, Dong L. October Cloud Increases Over the Arctic Ocean as Observed by MISR and CALIPSO |
topic_facet |
Meteorology and Climatology |
description |
The Beaufort and East Siberian Sea (BESS) shows a large increase in surface air temperature (SAT) in the recent decade for months of Sep-Nov, and NASA's Terra satellite have provided valuable measurements for this important decade of the intensified Arctic warming. In particular, MISR data since 2000 and CALIPSO cloud measurements since 2006 reveal a significant increase of low cloud cover in October, which is largest in the daylight Arctic months (March-October). Causes of the warming remain unclear; but increased absorption of summer solar radiation and autumn low cloud formation have been suggested as a positive ice-temperature-cloud feedback in the Arctic. The observed increase of low cloud cover supports the theorized positive ice-temperature-cloud feedback, whereby more open water in the Arctic Ocean increases summer absorption of solar radiation, and subsequent evaporation, which leads to more low clouds in autumn. Trapping longwave radiation, these clouds effectively lengthen the melt season and reduce perennial ice pack formation, making sea ice more vulnerable to the next melt season |
format |
Other/Unknown Material |
author |
Lee, Jae N. Wu, Dong L. |
author_facet |
Lee, Jae N. Wu, Dong L. |
author_sort |
Lee, Jae N. |
title |
October Cloud Increases Over the Arctic Ocean as Observed by MISR and CALIPSO |
title_short |
October Cloud Increases Over the Arctic Ocean as Observed by MISR and CALIPSO |
title_full |
October Cloud Increases Over the Arctic Ocean as Observed by MISR and CALIPSO |
title_fullStr |
October Cloud Increases Over the Arctic Ocean as Observed by MISR and CALIPSO |
title_full_unstemmed |
October Cloud Increases Over the Arctic Ocean as Observed by MISR and CALIPSO |
title_sort |
october cloud increases over the arctic ocean as observed by misr and calipso |
publishDate |
2011 |
url |
http://hdl.handle.net/2060/20110023327 |
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 ice pack Sea ice |
genre_facet |
Arctic Arctic Ocean East Siberian Sea ice pack Sea ice |
op_source |
CASI |
op_relation |
Document ID: 20110023327 http://hdl.handle.net/2060/20110023327 |
op_rights |
No Copyright |
_version_ |
1766309903316549632 |