Indirect measurements of the mass balance of summer Arctic sea ice with an electromagnetic induction technique
In the framework of the Surface Heat Budget of the Arctic Ocean (SHEBA) study indirect, non-invasive ice mass-balance measurements were carried out at a drifting station in the northern Chukchi Sea between May and August of 1998. Ice thickness was derived from electromagnetic-induction (EM) measurem...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.568.5212 2023-05-15T14:57:12+02:00 Indirect measurements of the mass balance of summer Arctic sea ice with an electromagnetic induction technique H. Eicken W. B. Tucker Iii D. K. Perovich The Pennsylvania State University CiteSeerX Archives 2001 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.568.5212 http://www2.gi.alaska.edu/~eicken/he_publ/ETP01.pdf en eng Arctic http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.568.5212 http://www2.gi.alaska.edu/~eicken/he_publ/ETP01.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www2.gi.alaska.edu/~eicken/he_publ/ETP01.pdf text 2001 ftciteseerx 2016-01-08T12:22:31Z In the framework of the Surface Heat Budget of the Arctic Ocean (SHEBA) study indirect, non-invasive ice mass-balance measurements were carried out at a drifting station in the northern Chukchi Sea between May and August of 1998. Ice thickness was derived from electromagnetic-induction (EM) measurements of apparent conductivity along 13 profiles (60 to 900 m long). As shown through sensitivity studies with a 1-D model, the apparent conductivity data from individual points can be inverted to yield estimates of ice thickness and ablation with an accuracy of approximately 0.05 m (for 2 m thick level ice). Ablation rates ranged between 8 and 18 mm d-1, with total ablation amounting to roughly 0.9 to 1.2 m. Measurements of thickness and melt rates along different profiles in undeformed multi-year ice corresponded closely, indicating that the sampling statistics are adequate. The roughness of undeformed ice has been found to increase during the summer due to deepening of melt ponds and enhanced bottom melt. Ice under melt ponds was disproportionately thinner, most likely a result of thicker snow cover reducing winter accretion. 1. Text Arctic Arctic Ocean Chukchi Chukchi Sea Sea ice Surface Heat Budget of the Arctic Ocean Unknown Arctic Arctic Ocean Chukchi Sea |
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ftciteseerx |
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English |
description |
In the framework of the Surface Heat Budget of the Arctic Ocean (SHEBA) study indirect, non-invasive ice mass-balance measurements were carried out at a drifting station in the northern Chukchi Sea between May and August of 1998. Ice thickness was derived from electromagnetic-induction (EM) measurements of apparent conductivity along 13 profiles (60 to 900 m long). As shown through sensitivity studies with a 1-D model, the apparent conductivity data from individual points can be inverted to yield estimates of ice thickness and ablation with an accuracy of approximately 0.05 m (for 2 m thick level ice). Ablation rates ranged between 8 and 18 mm d-1, with total ablation amounting to roughly 0.9 to 1.2 m. Measurements of thickness and melt rates along different profiles in undeformed multi-year ice corresponded closely, indicating that the sampling statistics are adequate. The roughness of undeformed ice has been found to increase during the summer due to deepening of melt ponds and enhanced bottom melt. Ice under melt ponds was disproportionately thinner, most likely a result of thicker snow cover reducing winter accretion. 1. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
H. Eicken W. B. Tucker Iii D. K. Perovich |
spellingShingle |
H. Eicken W. B. Tucker Iii D. K. Perovich Indirect measurements of the mass balance of summer Arctic sea ice with an electromagnetic induction technique |
author_facet |
H. Eicken W. B. Tucker Iii D. K. Perovich |
author_sort |
H. Eicken |
title |
Indirect measurements of the mass balance of summer Arctic sea ice with an electromagnetic induction technique |
title_short |
Indirect measurements of the mass balance of summer Arctic sea ice with an electromagnetic induction technique |
title_full |
Indirect measurements of the mass balance of summer Arctic sea ice with an electromagnetic induction technique |
title_fullStr |
Indirect measurements of the mass balance of summer Arctic sea ice with an electromagnetic induction technique |
title_full_unstemmed |
Indirect measurements of the mass balance of summer Arctic sea ice with an electromagnetic induction technique |
title_sort |
indirect measurements of the mass balance of summer arctic sea ice with an electromagnetic induction technique |
publisher |
Arctic |
publishDate |
2001 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.568.5212 http://www2.gi.alaska.edu/~eicken/he_publ/ETP01.pdf |
geographic |
Arctic Arctic Ocean Chukchi Sea |
geographic_facet |
Arctic Arctic Ocean Chukchi Sea |
genre |
Arctic Arctic Ocean Chukchi Chukchi Sea Sea ice Surface Heat Budget of the Arctic Ocean |
genre_facet |
Arctic Arctic Ocean Chukchi Chukchi Sea Sea ice Surface Heat Budget of the Arctic Ocean |
op_source |
http://www2.gi.alaska.edu/~eicken/he_publ/ETP01.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.568.5212 http://www2.gi.alaska.edu/~eicken/he_publ/ETP01.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766329281312456704 |