Aerosol effects on cloud emissivity and surface longwave heating in the Arctic
Increases in anthropogenic aerosols in the atmosphere tend to increase the reflectance of solar (shortwave) radiation from water clouds, which can lead to lower surface temperatures. Here we discuss an opposing effect whereby aerosols increase the longwave emissivity of thin clouds, which adds to th...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.528.421 2023-05-15T14:45:30+02:00 Aerosol effects on cloud emissivity and surface longwave heating in the Arctic Timothy J. Garrett Lawrence F. Radke The Pennsylvania State University CiteSeerX Archives 2002 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.528.421 http://gacp.giss.nasa.gov/publications/special/garrett.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.528.421 http://gacp.giss.nasa.gov/publications/special/garrett.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://gacp.giss.nasa.gov/publications/special/garrett.pdf text 2002 ftciteseerx 2016-01-08T10:27:32Z Increases in anthropogenic aerosols in the atmosphere tend to increase the reflectance of solar (shortwave) radiation from water clouds, which can lead to lower surface temperatures. Here we discuss an opposing effect whereby aerosols increase the longwave emissivity of thin clouds, which adds to the warming of the Earths surface. The latter effect may be particularly important in the Arctic, especially during the winter and early spring when thin stratus clouds are ubiquitous, relatively high levels of anthropogenic pollution are common, and there is little solar radiation. Clouds affect the climate of the Arctic primarily by increasing the amount of solar radiation reflected to space, and by absorbing and emitting longwave (thermal) and shortwave (solar) radiation. Globally, the net radiative impact of clouds is to cool the troposphere and the Text Arctic Unknown Arctic |
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English |
description |
Increases in anthropogenic aerosols in the atmosphere tend to increase the reflectance of solar (shortwave) radiation from water clouds, which can lead to lower surface temperatures. Here we discuss an opposing effect whereby aerosols increase the longwave emissivity of thin clouds, which adds to the warming of the Earths surface. The latter effect may be particularly important in the Arctic, especially during the winter and early spring when thin stratus clouds are ubiquitous, relatively high levels of anthropogenic pollution are common, and there is little solar radiation. Clouds affect the climate of the Arctic primarily by increasing the amount of solar radiation reflected to space, and by absorbing and emitting longwave (thermal) and shortwave (solar) radiation. Globally, the net radiative impact of clouds is to cool the troposphere and the |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Timothy J. Garrett Lawrence F. Radke |
spellingShingle |
Timothy J. Garrett Lawrence F. Radke Aerosol effects on cloud emissivity and surface longwave heating in the Arctic |
author_facet |
Timothy J. Garrett Lawrence F. Radke |
author_sort |
Timothy J. Garrett |
title |
Aerosol effects on cloud emissivity and surface longwave heating in the Arctic |
title_short |
Aerosol effects on cloud emissivity and surface longwave heating in the Arctic |
title_full |
Aerosol effects on cloud emissivity and surface longwave heating in the Arctic |
title_fullStr |
Aerosol effects on cloud emissivity and surface longwave heating in the Arctic |
title_full_unstemmed |
Aerosol effects on cloud emissivity and surface longwave heating in the Arctic |
title_sort |
aerosol effects on cloud emissivity and surface longwave heating in the arctic |
publishDate |
2002 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.528.421 http://gacp.giss.nasa.gov/publications/special/garrett.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
http://gacp.giss.nasa.gov/publications/special/garrett.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.528.421 http://gacp.giss.nasa.gov/publications/special/garrett.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766316895602999296 |