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Titel |
Diagnosing the extreme surface melt event over southwestern Greenland in 2007 |
VerfasserIn |
M. Tedesco, M. Serreze, X. Fettweis |
Medientyp |
Artikel
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Sprache |
Englisch
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ISSN |
1994-0416
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Digitales Dokument |
URL |
Erschienen |
In: The Cryosphere ; 2, no. 2 ; Nr. 2, no. 2 (2008-11-19), S.159-166 |
Datensatznummer |
250000532
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Publikation (Nr.) |
copernicus.org/tc-2-159-2008.pdf |
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Zusammenfassung |
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. |
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