Preferential Summer Melt of Deeper Ridge Keels in the Central Arctic Ocean from Multibeam Sonar Data
Sea-ice ridges constitute a large fraction of the total Arctic sea-ice volume (up to 40%); nevertheless, they are the least studied part of the Arctic ice pack. Here we investigate sea-ice melt rates using rare underwater multibeam data that cover a period of one month during the advanced melt stage...
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2023
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Online Access: | http://dx.doi.org/10.22541/essoar.168053228.81924666/v1 |
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crwinnower:10.22541/essoar.168053228.81924666/v1 2024-06-02T08:00:43+00:00 Preferential Summer Melt of Deeper Ridge Keels in the Central Arctic Ocean from Multibeam Sonar Data Salganik, Evgenii Lange, Benjamin Allen Katlein, Christian Matero, Ilkka S. O. Anhaus, Philipp Muilwijk, Morven Høyland, Knut Vilhelm Granskog, Mats Anders 2023 http://dx.doi.org/10.22541/essoar.168053228.81924666/v1 unknown Authorea, Inc. posted-content 2023 crwinnower https://doi.org/10.22541/essoar.168053228.81924666/v1 2024-05-07T14:19:20Z Sea-ice ridges constitute a large fraction of the total Arctic sea-ice volume (up to 40%); nevertheless, they are the least studied part of the Arctic ice pack. Here we investigate sea-ice melt rates using rare underwater multibeam data that cover a period of one month during the advanced melt stage in the Arctic summer. We show that the degree of bottom melt increases with ice draft for first-year and second-year level ice, and a first-year ice ridge keel, with an average of 0.45 m, 0.55 m, and 0.95 m of total snow and ice melt in the observation period, respectively. While bottom melt rates of ridge keels are 3-4 times higher than first-year level ice, surface melt rates are almost identical. Our estimate attributes 57% of the ridge keel melt variability to keel draft (36%), slope (32%), and width (27%). Other/Unknown Material Arctic Arctic Ocean ice pack Sea ice The Winnower Arctic Arctic Ocean |
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Open Polar |
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The Winnower |
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crwinnower |
language |
unknown |
description |
Sea-ice ridges constitute a large fraction of the total Arctic sea-ice volume (up to 40%); nevertheless, they are the least studied part of the Arctic ice pack. Here we investigate sea-ice melt rates using rare underwater multibeam data that cover a period of one month during the advanced melt stage in the Arctic summer. We show that the degree of bottom melt increases with ice draft for first-year and second-year level ice, and a first-year ice ridge keel, with an average of 0.45 m, 0.55 m, and 0.95 m of total snow and ice melt in the observation period, respectively. While bottom melt rates of ridge keels are 3-4 times higher than first-year level ice, surface melt rates are almost identical. Our estimate attributes 57% of the ridge keel melt variability to keel draft (36%), slope (32%), and width (27%). |
format |
Other/Unknown Material |
author |
Salganik, Evgenii Lange, Benjamin Allen Katlein, Christian Matero, Ilkka S. O. Anhaus, Philipp Muilwijk, Morven Høyland, Knut Vilhelm Granskog, Mats Anders |
spellingShingle |
Salganik, Evgenii Lange, Benjamin Allen Katlein, Christian Matero, Ilkka S. O. Anhaus, Philipp Muilwijk, Morven Høyland, Knut Vilhelm Granskog, Mats Anders Preferential Summer Melt of Deeper Ridge Keels in the Central Arctic Ocean from Multibeam Sonar Data |
author_facet |
Salganik, Evgenii Lange, Benjamin Allen Katlein, Christian Matero, Ilkka S. O. Anhaus, Philipp Muilwijk, Morven Høyland, Knut Vilhelm Granskog, Mats Anders |
author_sort |
Salganik, Evgenii |
title |
Preferential Summer Melt of Deeper Ridge Keels in the Central Arctic Ocean from Multibeam Sonar Data |
title_short |
Preferential Summer Melt of Deeper Ridge Keels in the Central Arctic Ocean from Multibeam Sonar Data |
title_full |
Preferential Summer Melt of Deeper Ridge Keels in the Central Arctic Ocean from Multibeam Sonar Data |
title_fullStr |
Preferential Summer Melt of Deeper Ridge Keels in the Central Arctic Ocean from Multibeam Sonar Data |
title_full_unstemmed |
Preferential Summer Melt of Deeper Ridge Keels in the Central Arctic Ocean from Multibeam Sonar Data |
title_sort |
preferential summer melt of deeper ridge keels in the central arctic ocean from multibeam sonar data |
publisher |
Authorea, Inc. |
publishDate |
2023 |
url |
http://dx.doi.org/10.22541/essoar.168053228.81924666/v1 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean ice pack Sea ice |
genre_facet |
Arctic Arctic Ocean ice pack Sea ice |
op_doi |
https://doi.org/10.22541/essoar.168053228.81924666/v1 |
_version_ |
1800744843307122688 |