© Author(s) 2009. This work is distributed under the Creative Commons Attribution 3.0 License. Atmospheric Chemistry and Physics Large surface radiative forcing from topographic blowing snow residuals measured in the High Arctic at Eureka
Abstract. Ice crystals, also known as diamond dust, are sus-pended in the boundary layer air under clear sky conditions during most of the Arctic winter in Northern Canada. Oc-casionally ice crystal events can produce significantly thick layers with optical depths in excess of 2.0 even in the ab-sen...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.646.9908 2023-05-15T15:00:02+02:00 © Author(s) 2009. This work is distributed under the Creative Commons Attribution 3.0 License. Atmospheric Chemistry and Physics Large surface radiative forcing from topographic blowing snow residuals measured in the High Arctic at Eureka G. Lesins L. Bourdages T. J. Duck J. R. Drummond E. W. Eloranta V. P. Walden The Pennsylvania State University CiteSeerX Archives 2009 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.646.9908 http://www.atmos-chem-phys.net/9/1847/2009/acp-9-1847-2009.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.646.9908 http://www.atmos-chem-phys.net/9/1847/2009/acp-9-1847-2009.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.atmos-chem-phys.net/9/1847/2009/acp-9-1847-2009.pdf Correspondence to G. Lesins text 2009 ftciteseerx 2016-01-08T16:13:12Z Abstract. Ice crystals, also known as diamond dust, are sus-pended in the boundary layer air under clear sky conditions during most of the Arctic winter in Northern Canada. Oc-casionally ice crystal events can produce significantly thick layers with optical depths in excess of 2.0 even in the ab-sence of liquid water clouds. Four case studies of high opti-cal depth ice crystal events at Eureka in the Nunavut Terri-tory of Canada during the winter of 2006/07 are presented. They show that the measured ice crystal surface infrared downward radiative forcing ranged from 8 to 36 W m−2 in the wavelength band from 5.6 to 20µm for 532 nm opti-cal depths ranging from 0.2 to 1.7. MODIS infrared and visible images and the operational radiosonde wind profile were used to show that these high optical depth events were caused by surface snow being blown off 600 to 800 m high mountain ridges about 20 to 30 km North-West of Eureka and advected by the winds towards Eureka as they settled towards the ground within the highly stable boundary layer. This work presents the first study that demonstrates the im-portant role that surrounding topography plays in determin-ing the occurrence of high optical depth ice crystal events from residual blowing snow that becomes a source of bound-ary layer ice crystals distinct from the classical diamond dust phenomenon. Text Arctic Eureka Nunavut Unknown Arctic Canada Eureka ENVELOPE(-85.940,-85.940,79.990,79.990) Nunavut |
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language |
English |
topic |
Correspondence to G. Lesins |
spellingShingle |
Correspondence to G. Lesins G. Lesins L. Bourdages T. J. Duck J. R. Drummond E. W. Eloranta V. P. Walden © Author(s) 2009. This work is distributed under the Creative Commons Attribution 3.0 License. Atmospheric Chemistry and Physics Large surface radiative forcing from topographic blowing snow residuals measured in the High Arctic at Eureka |
topic_facet |
Correspondence to G. Lesins |
description |
Abstract. Ice crystals, also known as diamond dust, are sus-pended in the boundary layer air under clear sky conditions during most of the Arctic winter in Northern Canada. Oc-casionally ice crystal events can produce significantly thick layers with optical depths in excess of 2.0 even in the ab-sence of liquid water clouds. Four case studies of high opti-cal depth ice crystal events at Eureka in the Nunavut Terri-tory of Canada during the winter of 2006/07 are presented. They show that the measured ice crystal surface infrared downward radiative forcing ranged from 8 to 36 W m−2 in the wavelength band from 5.6 to 20µm for 532 nm opti-cal depths ranging from 0.2 to 1.7. MODIS infrared and visible images and the operational radiosonde wind profile were used to show that these high optical depth events were caused by surface snow being blown off 600 to 800 m high mountain ridges about 20 to 30 km North-West of Eureka and advected by the winds towards Eureka as they settled towards the ground within the highly stable boundary layer. This work presents the first study that demonstrates the im-portant role that surrounding topography plays in determin-ing the occurrence of high optical depth ice crystal events from residual blowing snow that becomes a source of bound-ary layer ice crystals distinct from the classical diamond dust phenomenon. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
G. Lesins L. Bourdages T. J. Duck J. R. Drummond E. W. Eloranta V. P. Walden |
author_facet |
G. Lesins L. Bourdages T. J. Duck J. R. Drummond E. W. Eloranta V. P. Walden |
author_sort |
G. Lesins |
title |
© Author(s) 2009. This work is distributed under the Creative Commons Attribution 3.0 License. Atmospheric Chemistry and Physics Large surface radiative forcing from topographic blowing snow residuals measured in the High Arctic at Eureka |
title_short |
© Author(s) 2009. This work is distributed under the Creative Commons Attribution 3.0 License. Atmospheric Chemistry and Physics Large surface radiative forcing from topographic blowing snow residuals measured in the High Arctic at Eureka |
title_full |
© Author(s) 2009. This work is distributed under the Creative Commons Attribution 3.0 License. Atmospheric Chemistry and Physics Large surface radiative forcing from topographic blowing snow residuals measured in the High Arctic at Eureka |
title_fullStr |
© Author(s) 2009. This work is distributed under the Creative Commons Attribution 3.0 License. Atmospheric Chemistry and Physics Large surface radiative forcing from topographic blowing snow residuals measured in the High Arctic at Eureka |
title_full_unstemmed |
© Author(s) 2009. This work is distributed under the Creative Commons Attribution 3.0 License. Atmospheric Chemistry and Physics Large surface radiative forcing from topographic blowing snow residuals measured in the High Arctic at Eureka |
title_sort |
© author(s) 2009. this work is distributed under the creative commons attribution 3.0 license. atmospheric chemistry and physics large surface radiative forcing from topographic blowing snow residuals measured in the high arctic at eureka |
publishDate |
2009 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.646.9908 http://www.atmos-chem-phys.net/9/1847/2009/acp-9-1847-2009.pdf |
long_lat |
ENVELOPE(-85.940,-85.940,79.990,79.990) |
geographic |
Arctic Canada Eureka Nunavut |
geographic_facet |
Arctic Canada Eureka Nunavut |
genre |
Arctic Eureka Nunavut |
genre_facet |
Arctic Eureka Nunavut |
op_source |
http://www.atmos-chem-phys.net/9/1847/2009/acp-9-1847-2009.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.646.9908 http://www.atmos-chem-phys.net/9/1847/2009/acp-9-1847-2009.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766332144793157632 |