An Antarctic monitoring initiative for fast ice and comparison with the Arctic
While Arctic and Antarctic fast-ice observations are required by a number of interest groups for planning and logistical activities, or to support scientific research, obtaining those data is not trivial. Sea-ice extent is reasonably well observed using camera-based or satellite-borne instruments, h...
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ftcopernicus:oai:publications.copernicus.org:tcd9936 2023-05-15T13:36:36+02:00 An Antarctic monitoring initiative for fast ice and comparison with the Arctic Heil, P. Gerland, S. Granskog, M. A. 2018-09-26 application/pdf https://doi.org/10.5194/tcd-5-2437-2011 https://tc.copernicus.org/preprints/tc-2010-106/ eng eng doi:10.5194/tcd-5-2437-2011 https://tc.copernicus.org/preprints/tc-2010-106/ eISSN: 1994-0424 Text 2018 ftcopernicus https://doi.org/10.5194/tcd-5-2437-2011 2020-07-20T16:26:01Z While Arctic and Antarctic fast-ice observations are required by a number of interest groups for planning and logistical activities, or to support scientific research, obtaining those data is not trivial. Sea-ice extent is reasonably well observed using camera-based or satellite-borne instruments, however, in situ and satellite-based ice-thicknesss measurements remain a challenge. As the seasonal fast-ice thickness is directly linked to regional atmospheric and oceanographic conditions, monitoring of fast-ice thickness across a station network around Antarctica and in the Arctic is crucial to assess how climate change affects the polar system. The Antarctic Fast-Ice Network (AFIN) was recently established to provide the scientific community with fast-ice observations from sites operated by international contributors. Based on AFIN data a recent increase in interannual variability in annual maximum ice and snow thicknesses has been identified. Maximum Arctic fast-ice thickness generally exhibits a similar interannual variability, however, both positive and negative trends in ice thickness have been observed in the Arctic. Comparing the two hemispheres, we find that in the Arctic the fast ice establishes itself at a faster rate than in the Antarctic, where repeated cyclone action tends to intermittently remove the fast ice during autumn. Also, Arctic sites investigated here exhibit less snow cover than those from East Antarctic coastal sites. Text Antarc* Antarctic Antarctica Arctic Climate change Sea ice Copernicus Publications: E-Journals Arctic Antarctic The Antarctic |
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Copernicus Publications: E-Journals |
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English |
description |
While Arctic and Antarctic fast-ice observations are required by a number of interest groups for planning and logistical activities, or to support scientific research, obtaining those data is not trivial. Sea-ice extent is reasonably well observed using camera-based or satellite-borne instruments, however, in situ and satellite-based ice-thicknesss measurements remain a challenge. As the seasonal fast-ice thickness is directly linked to regional atmospheric and oceanographic conditions, monitoring of fast-ice thickness across a station network around Antarctica and in the Arctic is crucial to assess how climate change affects the polar system. The Antarctic Fast-Ice Network (AFIN) was recently established to provide the scientific community with fast-ice observations from sites operated by international contributors. Based on AFIN data a recent increase in interannual variability in annual maximum ice and snow thicknesses has been identified. Maximum Arctic fast-ice thickness generally exhibits a similar interannual variability, however, both positive and negative trends in ice thickness have been observed in the Arctic. Comparing the two hemispheres, we find that in the Arctic the fast ice establishes itself at a faster rate than in the Antarctic, where repeated cyclone action tends to intermittently remove the fast ice during autumn. Also, Arctic sites investigated here exhibit less snow cover than those from East Antarctic coastal sites. |
format |
Text |
author |
Heil, P. Gerland, S. Granskog, M. A. |
spellingShingle |
Heil, P. Gerland, S. Granskog, M. A. An Antarctic monitoring initiative for fast ice and comparison with the Arctic |
author_facet |
Heil, P. Gerland, S. Granskog, M. A. |
author_sort |
Heil, P. |
title |
An Antarctic monitoring initiative for fast ice and comparison with the Arctic |
title_short |
An Antarctic monitoring initiative for fast ice and comparison with the Arctic |
title_full |
An Antarctic monitoring initiative for fast ice and comparison with the Arctic |
title_fullStr |
An Antarctic monitoring initiative for fast ice and comparison with the Arctic |
title_full_unstemmed |
An Antarctic monitoring initiative for fast ice and comparison with the Arctic |
title_sort |
antarctic monitoring initiative for fast ice and comparison with the arctic |
publishDate |
2018 |
url |
https://doi.org/10.5194/tcd-5-2437-2011 https://tc.copernicus.org/preprints/tc-2010-106/ |
geographic |
Arctic Antarctic The Antarctic |
geographic_facet |
Arctic Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctica Arctic Climate change Sea ice |
genre_facet |
Antarc* Antarctic Antarctica Arctic Climate change Sea ice |
op_source |
eISSN: 1994-0424 |
op_relation |
doi:10.5194/tcd-5-2437-2011 https://tc.copernicus.org/preprints/tc-2010-106/ |
op_doi |
https://doi.org/10.5194/tcd-5-2437-2011 |
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1766081271551754240 |