On the use of electromagnetic induction sounding to determine winter and spring sea ice thickness in the Antarctic
The suitability of using a portable electromagnetic induction (EMI) sounding device for determining sea ice thickness under winter and spring conditions in the Antarctic is evaluated. Ice thickness estimates from the instrument are compared with drilled measurements along a series of transects on Ea...
Published in: | Cold Regions Science and Technology |
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Language: | English |
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Elsevier Science BV
1999
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Online Access: | https://doi.org/10.1016/S0165-232X(99)00003-8 http://ecite.utas.edu.au/35685 |
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ftunivtasecite:oai:ecite.utas.edu.au:35685 2023-05-15T14:03:55+02:00 On the use of electromagnetic induction sounding to determine winter and spring sea ice thickness in the Antarctic Worby, AP Griffin, PW Lytle, VI Massom, RA 1999 https://doi.org/10.1016/S0165-232X(99)00003-8 http://ecite.utas.edu.au/35685 en eng Elsevier Science BV http://dx.doi.org/10.1016/S0165-232X(99)00003-8 Worby, AP and Griffin, PW and Lytle, VI and Massom, RA, On the use of electromagnetic induction sounding to determine winter and spring sea ice thickness in the Antarctic, Cold Regions Science and Technology, 29, (1) pp. 49-58. ISSN 0165-232X (1999) [Refereed Article] http://ecite.utas.edu.au/35685 Earth Sciences Physical Geography and Environmental Geoscience Glaciology Refereed Article PeerReviewed 1999 ftunivtasecite https://doi.org/10.1016/S0165-232X(99)00003-8 2019-12-13T21:14:09Z The suitability of using a portable electromagnetic induction (EMI) sounding device for determining sea ice thickness under winter and spring conditions in the Antarctic is evaluated. Ice thickness estimates from the instrument are compared with drilled measurements along a series of transects on East Antarctic pack ice and fast ice. The data indicate that the instrument estimates the undeformed sea ice thickness to within 10% of drilled thickness measurements; however, thickness estimates over deformed ice show much larger deviations. Sea ice conductivity profiles along each transect were calculated using ice core salinity data and ice-snow interface temperatures. The analysis indicates that first-year Antarctic sea ice generally has a higher conductivity (35-75 mS m-1) than reported for Arctic sea ice. However, this does not adversely affect the EMI sounding technique for determining sea ice thickness as this conductivity is still significantly less than for seawater, and the ice effectively remains transparent to the EM field. The EMI instrument used in this experiment was fitted with an ice thickness processing module (PM) which provided accurate estimates of sea ice thickness once correctly calibrated. The results from these preliminary experiments over winter and spring Antarctic sea ice indicate that EMI sounding has great potential to provide thickness data over the undeformed component of the Antarctic pack ice at this time of year. Article in Journal/Newspaper Antarc* Antarctic Arctic ice core Sea ice eCite UTAS (University of Tasmania) Antarctic Arctic The Antarctic Cold Regions Science and Technology 29 1 49 58 |
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Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Earth Sciences Physical Geography and Environmental Geoscience Glaciology |
spellingShingle |
Earth Sciences Physical Geography and Environmental Geoscience Glaciology Worby, AP Griffin, PW Lytle, VI Massom, RA On the use of electromagnetic induction sounding to determine winter and spring sea ice thickness in the Antarctic |
topic_facet |
Earth Sciences Physical Geography and Environmental Geoscience Glaciology |
description |
The suitability of using a portable electromagnetic induction (EMI) sounding device for determining sea ice thickness under winter and spring conditions in the Antarctic is evaluated. Ice thickness estimates from the instrument are compared with drilled measurements along a series of transects on East Antarctic pack ice and fast ice. The data indicate that the instrument estimates the undeformed sea ice thickness to within 10% of drilled thickness measurements; however, thickness estimates over deformed ice show much larger deviations. Sea ice conductivity profiles along each transect were calculated using ice core salinity data and ice-snow interface temperatures. The analysis indicates that first-year Antarctic sea ice generally has a higher conductivity (35-75 mS m-1) than reported for Arctic sea ice. However, this does not adversely affect the EMI sounding technique for determining sea ice thickness as this conductivity is still significantly less than for seawater, and the ice effectively remains transparent to the EM field. The EMI instrument used in this experiment was fitted with an ice thickness processing module (PM) which provided accurate estimates of sea ice thickness once correctly calibrated. The results from these preliminary experiments over winter and spring Antarctic sea ice indicate that EMI sounding has great potential to provide thickness data over the undeformed component of the Antarctic pack ice at this time of year. |
format |
Article in Journal/Newspaper |
author |
Worby, AP Griffin, PW Lytle, VI Massom, RA |
author_facet |
Worby, AP Griffin, PW Lytle, VI Massom, RA |
author_sort |
Worby, AP |
title |
On the use of electromagnetic induction sounding to determine winter and spring sea ice thickness in the Antarctic |
title_short |
On the use of electromagnetic induction sounding to determine winter and spring sea ice thickness in the Antarctic |
title_full |
On the use of electromagnetic induction sounding to determine winter and spring sea ice thickness in the Antarctic |
title_fullStr |
On the use of electromagnetic induction sounding to determine winter and spring sea ice thickness in the Antarctic |
title_full_unstemmed |
On the use of electromagnetic induction sounding to determine winter and spring sea ice thickness in the Antarctic |
title_sort |
on the use of electromagnetic induction sounding to determine winter and spring sea ice thickness in the antarctic |
publisher |
Elsevier Science BV |
publishDate |
1999 |
url |
https://doi.org/10.1016/S0165-232X(99)00003-8 http://ecite.utas.edu.au/35685 |
geographic |
Antarctic Arctic The Antarctic |
geographic_facet |
Antarctic Arctic The Antarctic |
genre |
Antarc* Antarctic Arctic ice core Sea ice |
genre_facet |
Antarc* Antarctic Arctic ice core Sea ice |
op_relation |
http://dx.doi.org/10.1016/S0165-232X(99)00003-8 Worby, AP and Griffin, PW and Lytle, VI and Massom, RA, On the use of electromagnetic induction sounding to determine winter and spring sea ice thickness in the Antarctic, Cold Regions Science and Technology, 29, (1) pp. 49-58. ISSN 0165-232X (1999) [Refereed Article] http://ecite.utas.edu.au/35685 |
op_doi |
https://doi.org/10.1016/S0165-232X(99)00003-8 |
container_title |
Cold Regions Science and Technology |
container_volume |
29 |
container_issue |
1 |
container_start_page |
49 |
op_container_end_page |
58 |
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1766274788737679360 |