Greenland, Canadian and Icelandic land-ice albedo grids (2000–2016)
Albedo, Latin for ‘whiteness’, is a term used to describe the amount of sunlight reflected by the ground. Fresh snow albedo can exceed 85%, making it among the most reflective natural substances. Warm conditions promote snow crystal metamorphosis that, like the presence of liquid water, bring snow a...
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ftjgeusbullet:oai:geusjournals.org:article/4414 2023-05-15T16:21:08+02:00 Greenland, Canadian and Icelandic land-ice albedo grids (2000–2016) Box, Jason E. van As, Dirk Steffen, Konrad 2017-07-31 application/pdf https://geusbulletin.org/index.php/geusb/article/view/4414 https://doi.org/10.34194/geusb.v38.4414 eng eng Geological Survey of Denmark and Greenland (GEUS) https://geusbulletin.org/index.php/geusb/article/view/4414/10135 https://geusbulletin.org/index.php/geusb/article/view/4414 doi:10.34194/geusb.v38.4414 GEUS Bulletin; Vol. 38 (2017): Review of Survey activities 2016; 53-56 2597-2154 2597-2162 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Rapid Communication. Peer-reviewed Article. 2017 ftjgeusbullet https://doi.org/10.34194/geusb.v38.4414 2022-03-15T17:22:06Z Albedo, Latin for ‘whiteness’, is a term used to describe the amount of sunlight reflected by the ground. Fresh snow albedo can exceed 85%, making it among the most reflective natural substances. Warm conditions promote snow crystal metamorphosis that, like the presence of liquid water, bring snow albedo down below 65%. With the darkening, caused by the metamorphosis, absorbed solar energy thus increases by roughly a factor of two. Seasonal snow melts over the lower reaches of a glacier leading to the exposure of bare ice with albedo below 55%. Impurities such as dust, black carbon or microbes can bring glacier-ice albedo below 30%, meaning that snow ablation gives way to impurity-rich, bare glacier ice which increases absorbed sunlight by more than a factor of three. Article in Journal/Newspaper glacier Greenland GEUS Bulletin (Geological Survey of Denmark and Greenland) Greenland Geological Survey of Denmark and Greenland Bulletin 53 56 |
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GEUS Bulletin (Geological Survey of Denmark and Greenland) |
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ftjgeusbullet |
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English |
description |
Albedo, Latin for ‘whiteness’, is a term used to describe the amount of sunlight reflected by the ground. Fresh snow albedo can exceed 85%, making it among the most reflective natural substances. Warm conditions promote snow crystal metamorphosis that, like the presence of liquid water, bring snow albedo down below 65%. With the darkening, caused by the metamorphosis, absorbed solar energy thus increases by roughly a factor of two. Seasonal snow melts over the lower reaches of a glacier leading to the exposure of bare ice with albedo below 55%. Impurities such as dust, black carbon or microbes can bring glacier-ice albedo below 30%, meaning that snow ablation gives way to impurity-rich, bare glacier ice which increases absorbed sunlight by more than a factor of three. |
format |
Article in Journal/Newspaper |
author |
Box, Jason E. van As, Dirk Steffen, Konrad |
spellingShingle |
Box, Jason E. van As, Dirk Steffen, Konrad Greenland, Canadian and Icelandic land-ice albedo grids (2000–2016) |
author_facet |
Box, Jason E. van As, Dirk Steffen, Konrad |
author_sort |
Box, Jason E. |
title |
Greenland, Canadian and Icelandic land-ice albedo grids (2000–2016) |
title_short |
Greenland, Canadian and Icelandic land-ice albedo grids (2000–2016) |
title_full |
Greenland, Canadian and Icelandic land-ice albedo grids (2000–2016) |
title_fullStr |
Greenland, Canadian and Icelandic land-ice albedo grids (2000–2016) |
title_full_unstemmed |
Greenland, Canadian and Icelandic land-ice albedo grids (2000–2016) |
title_sort |
greenland, canadian and icelandic land-ice albedo grids (2000–2016) |
publisher |
Geological Survey of Denmark and Greenland (GEUS) |
publishDate |
2017 |
url |
https://geusbulletin.org/index.php/geusb/article/view/4414 https://doi.org/10.34194/geusb.v38.4414 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
glacier Greenland |
genre_facet |
glacier Greenland |
op_source |
GEUS Bulletin; Vol. 38 (2017): Review of Survey activities 2016; 53-56 2597-2154 2597-2162 |
op_relation |
https://geusbulletin.org/index.php/geusb/article/view/4414/10135 https://geusbulletin.org/index.php/geusb/article/view/4414 doi:10.34194/geusb.v38.4414 |
op_doi |
https://doi.org/10.34194/geusb.v38.4414 |
container_title |
Geological Survey of Denmark and Greenland Bulletin |
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53 |
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56 |
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1766009143811899392 |