Glacial shortcut of Arctic sea-ice transport
Due to the lack of data, the extent, thickness and drift patterns of sea ice and icebergs in the glacial Arctic remains poorly constrained. Earlier studies are contradictory proposing either a cessation of the marine cryosphere or an ice drift system operating like present-day. Here we examine the m...
Published in: | Earth and Planetary Science Letters |
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Online Access: | https://epic.awi.de/id/eprint/31338/ https://epic.awi.de/id/eprint/31338/1/staerz_et_al_2012-2.pdf http://www.sciencedirect.com/science/article/pii/S0012821X12005298 https://hdl.handle.net/10013/epic.40143 https://hdl.handle.net/10013/epic.40143.d001 |
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ftawi:oai:epic.awi.de:31338 2023-05-15T14:27:44+02:00 Glacial shortcut of Arctic sea-ice transport Stärz, Michael Gong, Xun Stein, Rüdiger Darby, Dennis A. Kauker, Frank Lohmann, Gerrit 2012-12-01 application/pdf https://epic.awi.de/id/eprint/31338/ https://epic.awi.de/id/eprint/31338/1/staerz_et_al_2012-2.pdf http://www.sciencedirect.com/science/article/pii/S0012821X12005298 https://hdl.handle.net/10013/epic.40143 https://hdl.handle.net/10013/epic.40143.d001 unknown Elsevier https://epic.awi.de/id/eprint/31338/1/staerz_et_al_2012-2.pdf https://hdl.handle.net/10013/epic.40143.d001 Stärz, M. , Gong, X. orcid:0000-0001-9308-4431 , Stein, R. orcid:0000-0002-4453-9564 , Darby, D. A. , Kauker, F. orcid:0000-0002-7976-3005 and Lohmann, G. orcid:0000-0003-2089-733X (2012) Glacial shortcut of Arctic sea-ice transport , Earth and Planetary Science Letters, 357-35 , pp. 257-267 . doi:10.1016/j.epsl.2012.09.033 <https://doi.org/10.1016/j.epsl.2012.09.033> , hdl:10013/epic.40143 EPIC3Earth and Planetary Science Letters, Elsevier, 357-35, pp. 257-267 Article isiRev 2012 ftawi https://doi.org/10.1016/j.epsl.2012.09.033 2021-12-24T15:38:00Z Due to the lack of data, the extent, thickness and drift patterns of sea ice and icebergs in the glacial Arctic remains poorly constrained. Earlier studies are contradictory proposing either a cessation of the marine cryosphere or an ice drift system operating like present-day. Here we examine the marine Arctic cryosphere during the Last Glacial Maximum (LGM) using a high-resolution, regional ocean-sea ice model. Whereas modern sea ice in the western Arctic Basin can circulate in the Beaufort Gyre for decades, our model studies present an extreme shortcut of glacial ice drift. In more detail, our results show a clockwise sea-ice drift in the western Arctic Basin that merges into a direct trans-Arctic path towards Fram Strait. This is consistent with dated ice plow marks on the seafloor, which show the orientation of iceberg drift in this direction. Also ice-transported iron-oxide grains deposited in Fram Strait, can be matched by their chemical composition to similar grains found in potential sources from the entire circum-Arctic. The model results indicate that the pattern of Arctic sea-ice drift during the LGM is established by wind fields and seems to be a general feature of the glacial ocean. Our model results do not indicate a cessation in ice drift during the LGM. Article in Journal/Newspaper Arctic Arctic Basin arctic cryosphere Arctic Fram Strait Iceberg* Sea ice Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Earth and Planetary Science Letters 357-358 257 267 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Due to the lack of data, the extent, thickness and drift patterns of sea ice and icebergs in the glacial Arctic remains poorly constrained. Earlier studies are contradictory proposing either a cessation of the marine cryosphere or an ice drift system operating like present-day. Here we examine the marine Arctic cryosphere during the Last Glacial Maximum (LGM) using a high-resolution, regional ocean-sea ice model. Whereas modern sea ice in the western Arctic Basin can circulate in the Beaufort Gyre for decades, our model studies present an extreme shortcut of glacial ice drift. In more detail, our results show a clockwise sea-ice drift in the western Arctic Basin that merges into a direct trans-Arctic path towards Fram Strait. This is consistent with dated ice plow marks on the seafloor, which show the orientation of iceberg drift in this direction. Also ice-transported iron-oxide grains deposited in Fram Strait, can be matched by their chemical composition to similar grains found in potential sources from the entire circum-Arctic. The model results indicate that the pattern of Arctic sea-ice drift during the LGM is established by wind fields and seems to be a general feature of the glacial ocean. Our model results do not indicate a cessation in ice drift during the LGM. |
format |
Article in Journal/Newspaper |
author |
Stärz, Michael Gong, Xun Stein, Rüdiger Darby, Dennis A. Kauker, Frank Lohmann, Gerrit |
spellingShingle |
Stärz, Michael Gong, Xun Stein, Rüdiger Darby, Dennis A. Kauker, Frank Lohmann, Gerrit Glacial shortcut of Arctic sea-ice transport |
author_facet |
Stärz, Michael Gong, Xun Stein, Rüdiger Darby, Dennis A. Kauker, Frank Lohmann, Gerrit |
author_sort |
Stärz, Michael |
title |
Glacial shortcut of Arctic sea-ice transport |
title_short |
Glacial shortcut of Arctic sea-ice transport |
title_full |
Glacial shortcut of Arctic sea-ice transport |
title_fullStr |
Glacial shortcut of Arctic sea-ice transport |
title_full_unstemmed |
Glacial shortcut of Arctic sea-ice transport |
title_sort |
glacial shortcut of arctic sea-ice transport |
publisher |
Elsevier |
publishDate |
2012 |
url |
https://epic.awi.de/id/eprint/31338/ https://epic.awi.de/id/eprint/31338/1/staerz_et_al_2012-2.pdf http://www.sciencedirect.com/science/article/pii/S0012821X12005298 https://hdl.handle.net/10013/epic.40143 https://hdl.handle.net/10013/epic.40143.d001 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic Basin arctic cryosphere Arctic Fram Strait Iceberg* Sea ice |
genre_facet |
Arctic Arctic Basin arctic cryosphere Arctic Fram Strait Iceberg* Sea ice |
op_source |
EPIC3Earth and Planetary Science Letters, Elsevier, 357-35, pp. 257-267 |
op_relation |
https://epic.awi.de/id/eprint/31338/1/staerz_et_al_2012-2.pdf https://hdl.handle.net/10013/epic.40143.d001 Stärz, M. , Gong, X. orcid:0000-0001-9308-4431 , Stein, R. orcid:0000-0002-4453-9564 , Darby, D. A. , Kauker, F. orcid:0000-0002-7976-3005 and Lohmann, G. orcid:0000-0003-2089-733X (2012) Glacial shortcut of Arctic sea-ice transport , Earth and Planetary Science Letters, 357-35 , pp. 257-267 . doi:10.1016/j.epsl.2012.09.033 <https://doi.org/10.1016/j.epsl.2012.09.033> , hdl:10013/epic.40143 |
op_doi |
https://doi.org/10.1016/j.epsl.2012.09.033 |
container_title |
Earth and Planetary Science Letters |
container_volume |
357-358 |
container_start_page |
257 |
op_container_end_page |
267 |
_version_ |
1766301634731704320 |