The Impact of Bare Ice Duration and Geo‐Topographical Factors on the Darkening of the Greenland Ice Sheet
Dark (low albedo) surface ice on the Greenland Ice Sheet enhances melting and subsequent runoff, a major mass loss contributor during the ablation season. The accumulation of both biological (e.g., glacier ice algae) and abiotic (e.g., mineral dust) light-absorbing particulates are important darkeni...
Published in: | Geophysical Research Letters |
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Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
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2024
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Online Access: | https://gfzpublic.gfz-potsdam.de/pubman/item/item_5025725 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5025725_1/component/file_5025729/5025725.pdf |
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ftgfzpotsdam:oai:gfzpublic.gfz-potsdam.de:item_5025725 2024-06-02T08:07:03+00:00 The Impact of Bare Ice Duration and Geo‐Topographical Factors on the Darkening of the Greenland Ice Sheet Feng, S. Cook, J. Naegeli, K. Anesio, A. Benning, L. Tranter, M. 2024 application/pdf https://gfzpublic.gfz-potsdam.de/pubman/item/item_5025725 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5025725_1/component/file_5025729/5025725.pdf unknown info:eu-repo/semantics/altIdentifier/doi/10.1029/2023GL104894 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5025725 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5025725_1/component/file_5025729/5025725.pdf info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ Geophysical Research Letters info:eu-repo/semantics/article 2024 ftgfzpotsdam https://doi.org/10.1029/2023GL104894 2024-05-07T05:00:05Z Dark (low albedo) surface ice on the Greenland Ice Sheet enhances melting and subsequent runoff, a major mass loss contributor during the ablation season. The accumulation of both biological (e.g., glacier ice algae) and abiotic (e.g., mineral dust) light-absorbing particulates are important darkening factors, that are potentially influenced by the duration of snow-free, bare ice (a phenological factor), and other geo-topographical factors such as elevation, slope, aspect and the distance from the ice margin. Here, we present the first medium-resolution (30 m) analysis of the phenological and geo-topographical controls on the distribution of dark ice in SE and SW Greenland from statistical analysis of data derived from a harmonized satellite albedo product and ArcticDEM. The duration of bare ice primarily controls the distribution of dark surface ice, allowing for algae growth on inland ice surfaces in particular, whereas geo-topographical factors are only secondary controls. Article in Journal/Newspaper glacier Greenland ice algae Ice Sheet GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) Greenland Geophysical Research Letters 51 1 |
institution |
Open Polar |
collection |
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) |
op_collection_id |
ftgfzpotsdam |
language |
unknown |
description |
Dark (low albedo) surface ice on the Greenland Ice Sheet enhances melting and subsequent runoff, a major mass loss contributor during the ablation season. The accumulation of both biological (e.g., glacier ice algae) and abiotic (e.g., mineral dust) light-absorbing particulates are important darkening factors, that are potentially influenced by the duration of snow-free, bare ice (a phenological factor), and other geo-topographical factors such as elevation, slope, aspect and the distance from the ice margin. Here, we present the first medium-resolution (30 m) analysis of the phenological and geo-topographical controls on the distribution of dark ice in SE and SW Greenland from statistical analysis of data derived from a harmonized satellite albedo product and ArcticDEM. The duration of bare ice primarily controls the distribution of dark surface ice, allowing for algae growth on inland ice surfaces in particular, whereas geo-topographical factors are only secondary controls. |
format |
Article in Journal/Newspaper |
author |
Feng, S. Cook, J. Naegeli, K. Anesio, A. Benning, L. Tranter, M. |
spellingShingle |
Feng, S. Cook, J. Naegeli, K. Anesio, A. Benning, L. Tranter, M. The Impact of Bare Ice Duration and Geo‐Topographical Factors on the Darkening of the Greenland Ice Sheet |
author_facet |
Feng, S. Cook, J. Naegeli, K. Anesio, A. Benning, L. Tranter, M. |
author_sort |
Feng, S. |
title |
The Impact of Bare Ice Duration and Geo‐Topographical Factors on the Darkening of the Greenland Ice Sheet |
title_short |
The Impact of Bare Ice Duration and Geo‐Topographical Factors on the Darkening of the Greenland Ice Sheet |
title_full |
The Impact of Bare Ice Duration and Geo‐Topographical Factors on the Darkening of the Greenland Ice Sheet |
title_fullStr |
The Impact of Bare Ice Duration and Geo‐Topographical Factors on the Darkening of the Greenland Ice Sheet |
title_full_unstemmed |
The Impact of Bare Ice Duration and Geo‐Topographical Factors on the Darkening of the Greenland Ice Sheet |
title_sort |
impact of bare ice duration and geo‐topographical factors on the darkening of the greenland ice sheet |
publishDate |
2024 |
url |
https://gfzpublic.gfz-potsdam.de/pubman/item/item_5025725 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5025725_1/component/file_5025729/5025725.pdf |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
glacier Greenland ice algae Ice Sheet |
genre_facet |
glacier Greenland ice algae Ice Sheet |
op_source |
Geophysical Research Letters |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2023GL104894 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5025725 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5025725_1/component/file_5025729/5025725.pdf |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1029/2023GL104894 |
container_title |
Geophysical Research Letters |
container_volume |
51 |
container_issue |
1 |
_version_ |
1800752060224765952 |