Albedo of ice types in northeast Greenland's ablation zone
Ice types, albedos and impurity content are characterized for the ablation zone of the Greenland ice sheet in Kronprinz Christians Land (808 N, 248 W). Along this ice margin the width of the ablation zone is only about 8 km. The emergence and melting of old ice in the ablation zone creates a surface...
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Arctic Data Center
2016
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dataone:urn:uuid:450f522e-b085-4e8f-bf75-56d72d37ae35 2024-06-03T18:46:22+00:00 Albedo of ice types in northeast Greenland's ablation zone ENVELOPE(-24.5,-24.017,79.933,79.9) BEGINDATE: 2006-08-02T00:00:00Z ENDDATE: 2006-08-10T00:00:00Z 2016-01-19T00:00:00Z https://search.dataone.org/view/urn:uuid:450f522e-b085-4e8f-bf75-56d72d37ae35 unknown Arctic Data Center Arctic Dataset 2016 dataone:urn:node:ARCTIC 2024-06-03T18:07:04Z Ice types, albedos and impurity content are characterized for the ablation zone of the Greenland ice sheet in Kronprinz Christians Land (808 N, 248 W). Along this ice margin the width of the ablation zone is only about 8 km. The emergence and melting of old ice in the ablation zone creates a surface layer of dust that was originally deposited with snowfall high on the ice sheet. This debris cover is augmented by locally derived wind-blown sediment. Subsequently, the surface dust particles often aggregate together to form centimetre-scale clumps that melt into the ice, creating cryoconite holes. The debris in the cryoconite holes becomes hidden from sunlight, raising the area-averaged albedo relative to surfaces with uniform debris cover. Spectral and broadband albedos were obtained for snow, ice hummocks, debris-covered ice, cryoconite-studded ice and barren tundra surfaces. Broadband ice albedos varied from 0.2 (for ice with heavy loading of uniform debris) to 0.6 (for ice hummocks with cryoconite holes). The cryoconite material itself has albedo 0.1 when wet. Dataset albedo Arctic Greenland Ice Sheet Tundra Arctic Data Center (via DataONE) Arctic Greenland ENVELOPE(-24.5,-24.017,79.933,79.9) |
institution |
Open Polar |
collection |
Arctic Data Center (via DataONE) |
op_collection_id |
dataone:urn:node:ARCTIC |
language |
unknown |
topic |
Arctic |
spellingShingle |
Arctic Albedo of ice types in northeast Greenland's ablation zone |
topic_facet |
Arctic |
description |
Ice types, albedos and impurity content are characterized for the ablation zone of the Greenland ice sheet in Kronprinz Christians Land (808 N, 248 W). Along this ice margin the width of the ablation zone is only about 8 km. The emergence and melting of old ice in the ablation zone creates a surface layer of dust that was originally deposited with snowfall high on the ice sheet. This debris cover is augmented by locally derived wind-blown sediment. Subsequently, the surface dust particles often aggregate together to form centimetre-scale clumps that melt into the ice, creating cryoconite holes. The debris in the cryoconite holes becomes hidden from sunlight, raising the area-averaged albedo relative to surfaces with uniform debris cover. Spectral and broadband albedos were obtained for snow, ice hummocks, debris-covered ice, cryoconite-studded ice and barren tundra surfaces. Broadband ice albedos varied from 0.2 (for ice with heavy loading of uniform debris) to 0.6 (for ice hummocks with cryoconite holes). The cryoconite material itself has albedo 0.1 when wet. |
format |
Dataset |
title |
Albedo of ice types in northeast Greenland's ablation zone |
title_short |
Albedo of ice types in northeast Greenland's ablation zone |
title_full |
Albedo of ice types in northeast Greenland's ablation zone |
title_fullStr |
Albedo of ice types in northeast Greenland's ablation zone |
title_full_unstemmed |
Albedo of ice types in northeast Greenland's ablation zone |
title_sort |
albedo of ice types in northeast greenland's ablation zone |
publisher |
Arctic Data Center |
publishDate |
2016 |
url |
https://search.dataone.org/view/urn:uuid:450f522e-b085-4e8f-bf75-56d72d37ae35 |
op_coverage |
ENVELOPE(-24.5,-24.017,79.933,79.9) BEGINDATE: 2006-08-02T00:00:00Z ENDDATE: 2006-08-10T00:00:00Z |
long_lat |
ENVELOPE(-24.5,-24.017,79.933,79.9) |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
albedo Arctic Greenland Ice Sheet Tundra |
genre_facet |
albedo Arctic Greenland Ice Sheet Tundra |
_version_ |
1800867288128159744 |