Diagnosing the extreme surface melt event over southwestern Greenland in 2007
Abstract. Analysis of passive microwave brightness temperatures from the space-borne Special Sensor Microwave Imager (SSM/I) documents a record surface snowmelt over high elevations (above 2000 m) of the Greenland ice sheet during summer of 2007. To interpret this record, results from the SSM/I are...
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2008
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ftcolumbiauniv:oai:academiccommons.columbia.edu:10.7916/D8PN95KW 2023-05-15T16:27:13+02:00 Diagnosing the extreme surface melt event over southwestern Greenland in 2007 Tedesco, Marco Serreze, M. Fettweis, X. 2008 https://doi.org/10.7916/D8PN95KW English eng European Geosciences Union https://doi.org/10.7916/D8PN95KW Albedo Meltwater Climatic geomorphology Atmospheric physics Ice sheets Geology Geomorphology Hydrology Climatic changes Atmosphere Articles 2008 ftcolumbiauniv https://doi.org/10.7916/D8PN95KW 2019-04-04T08:14:19Z Abstract. Analysis of passive microwave brightness temperatures from the space-borne Special Sensor Microwave Imager (SSM/I) documents a record surface snowmelt over high elevations (above 2000 m) of the Greenland ice sheet during summer of 2007. To interpret this record, results from the SSM/I are examined in conjunction with fields from the National Centers for Environmental Prediction/National Center for Atmospheric Research reanalysis and output from a regional climate model. The record surface melt reflects unusually warm conditions, seen in positive summertime anomalies of surface air temperatures, downwelling longwave radiation, 1000–500 hPa atmospheric thickness, and the net surface energy flux, linked in turn to southerly airflow over the ice sheet. Low snow accumulation may have contributed to the record through promoting anomalously low surface albedo. Article in Journal/Newspaper Greenland Ice Sheet Columbia University: Academic Commons Greenland |
institution |
Open Polar |
collection |
Columbia University: Academic Commons |
op_collection_id |
ftcolumbiauniv |
language |
English |
topic |
Albedo Meltwater Climatic geomorphology Atmospheric physics Ice sheets Geology Geomorphology Hydrology Climatic changes Atmosphere |
spellingShingle |
Albedo Meltwater Climatic geomorphology Atmospheric physics Ice sheets Geology Geomorphology Hydrology Climatic changes Atmosphere Tedesco, Marco Serreze, M. Fettweis, X. Diagnosing the extreme surface melt event over southwestern Greenland in 2007 |
topic_facet |
Albedo Meltwater Climatic geomorphology Atmospheric physics Ice sheets Geology Geomorphology Hydrology Climatic changes Atmosphere |
description |
Abstract. Analysis of passive microwave brightness temperatures from the space-borne Special Sensor Microwave Imager (SSM/I) documents a record surface snowmelt over high elevations (above 2000 m) of the Greenland ice sheet during summer of 2007. To interpret this record, results from the SSM/I are examined in conjunction with fields from the National Centers for Environmental Prediction/National Center for Atmospheric Research reanalysis and output from a regional climate model. The record surface melt reflects unusually warm conditions, seen in positive summertime anomalies of surface air temperatures, downwelling longwave radiation, 1000–500 hPa atmospheric thickness, and the net surface energy flux, linked in turn to southerly airflow over the ice sheet. Low snow accumulation may have contributed to the record through promoting anomalously low surface albedo. |
format |
Article in Journal/Newspaper |
author |
Tedesco, Marco Serreze, M. Fettweis, X. |
author_facet |
Tedesco, Marco Serreze, M. Fettweis, X. |
author_sort |
Tedesco, Marco |
title |
Diagnosing the extreme surface melt event over southwestern Greenland in 2007 |
title_short |
Diagnosing the extreme surface melt event over southwestern Greenland in 2007 |
title_full |
Diagnosing the extreme surface melt event over southwestern Greenland in 2007 |
title_fullStr |
Diagnosing the extreme surface melt event over southwestern Greenland in 2007 |
title_full_unstemmed |
Diagnosing the extreme surface melt event over southwestern Greenland in 2007 |
title_sort |
diagnosing the extreme surface melt event over southwestern greenland in 2007 |
publisher |
European Geosciences Union |
publishDate |
2008 |
url |
https://doi.org/10.7916/D8PN95KW |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Ice Sheet |
genre_facet |
Greenland Ice Sheet |
op_relation |
https://doi.org/10.7916/D8PN95KW |
op_doi |
https://doi.org/10.7916/D8PN95KW |
_version_ |
1766016341643362304 |