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| Titel |
Albedo of the ice covered Weddell and Bellingshausen Seas |
| VerfasserIn |
A. I. Weiss, J. C. King, T. A. Lachlan-Cope, R. S. Ladkin |
| 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 ; 6, no. 2 ; Nr. 6, no. 2 (2012-04-11), S.479-491 |
| Datensatznummer |
250003493
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| Publikation (Nr.) |
 copernicus.org/tc-6-479-2012.pdf |
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| Zusammenfassung |
| This study investigates the surface albedo of the sea ice areas adjacent to
the Antarctic Peninsula during the austral summer. Aircraft measurements of
the surface albedo, which were conducted in the sea ice areas of the Weddell
and Bellingshausen Seas show significant differences between these two
regions. The averaged surface albedo varied between 0.13 and 0.81.
The ice cover of the Bellingshausen Sea consisted mainly of first
year ice and the sea surface showed an averaged sea ice albedo of αi = 0.64 ± 0.2 (± standard deviation). The mean sea ice
albedo of the pack ice area in the western Weddell Sea was αi = 0.75 ± 0.05. In the southern Weddell Sea, where new,
young sea ice prevailed, a mean albedo value of αi = 0.38 ± 0.08
was observed. Relatively warm open water and thin, newly formed ice had the
lowest albedo values, whereas relatively cold and snow covered pack ice had
the highest albedo values. All sea ice areas consisted of a mixture of a
large range of different sea ice types. An investigation of commonly used
parameterizations of albedo as a function of surface temperature in the
Weddell and Bellingshausen Sea ice areas showed that the albedo
parameterizations do not work well for areas with new, young ice. |
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