Quaternary sedimentation in the Arctic Ocean : Recent advances and further challenges
This paper reviews current knowledge of sedimentation patterns in the Arctic Ocean during the pronounced climatic cycles of the last several hundred thousand years, an especially relevant time period that provides long-term context for present climate change. The review is largely based on data coll...
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ftstockholmuniv:oai:DiVA.org:su-67228 2023-05-15T14:35:08+02:00 Quaternary sedimentation in the Arctic Ocean : Recent advances and further challenges Polyak, Leonid Jakobsson, Martin 2011 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-67228 https://doi.org/10.5670/oceanog.2011.55 eng eng Institutionen för geologiska vetenskaper Bird Polar Research Center, Ohio State University The Oceanography Society Oceanography, 1042-8275, 2011, 24:3, s. 52-64 http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-67228 doi:10.5670/oceanog.2011.55 ISI:000295394700010 info:eu-repo/semantics/openAccess Oceanography Hydrology and Water Resources Oceanografi hydrologi och vattenresurser Geology Geologi Geophysics Geofysik Article in journal info:eu-repo/semantics/article text 2011 ftstockholmuniv https://doi.org/10.5670/oceanog.2011.55 2023-02-23T21:42:14Z This paper reviews current knowledge of sedimentation patterns in the Arctic Ocean during the pronounced climatic cycles of the last several hundred thousand years, an especially relevant time period that provides long-term context for present climate change. The review is largely based on data collected during recent research icebreaker cruises to the Arctic Ocean, with a focus on the 2005 Healy-Oden TransArctic Expedition (HOTRAX) and 2007 Lomonosov Ridge Off Greenland (LOMROG) expedition. The sediment cores and geophysical seafloor mapping data collected enable reconstruction of past oceanic environments. Evaluation of these data suggests that the two major Arctic Ocean circulation systems, the Trans-Polar Drift and the Beaufort Gyre, persisted throughout most of the Late to Middle Quaternary, approximately the last 0.5 to 0.7 million years. Extreme conditions, nonanalogous to modern environments, also occurred in the past, especially during Pleistocene glacial intervals. Some of these intervals likely featured much thickened and/or concentrated sea ice and incursions of ice shelves and armadas of megasized icebergs from the margins to the center of the Arctic Ocean. In contrast, much warmer conditions with reduced sea ice extent existed during interglacial periods. Characterization of ice conditions during these intervals is critical for evaluating the present and projected future reduction of Arctic sea ice. Oceanography, Arctic Ocean, Sediments, Cenozoic, Paloceanograpgy Article in Journal/Newspaper Arctic Arctic Ocean Climate change Greenland Ice Shelves Iceberg* Lomonosov Ridge oden Sea ice Stockholm University: Publications (DiVA) Arctic Arctic Ocean Greenland Oceanography 24 3 52 64 |
institution |
Open Polar |
collection |
Stockholm University: Publications (DiVA) |
op_collection_id |
ftstockholmuniv |
language |
English |
topic |
Oceanography Hydrology and Water Resources Oceanografi hydrologi och vattenresurser Geology Geologi Geophysics Geofysik |
spellingShingle |
Oceanography Hydrology and Water Resources Oceanografi hydrologi och vattenresurser Geology Geologi Geophysics Geofysik Polyak, Leonid Jakobsson, Martin Quaternary sedimentation in the Arctic Ocean : Recent advances and further challenges |
topic_facet |
Oceanography Hydrology and Water Resources Oceanografi hydrologi och vattenresurser Geology Geologi Geophysics Geofysik |
description |
This paper reviews current knowledge of sedimentation patterns in the Arctic Ocean during the pronounced climatic cycles of the last several hundred thousand years, an especially relevant time period that provides long-term context for present climate change. The review is largely based on data collected during recent research icebreaker cruises to the Arctic Ocean, with a focus on the 2005 Healy-Oden TransArctic Expedition (HOTRAX) and 2007 Lomonosov Ridge Off Greenland (LOMROG) expedition. The sediment cores and geophysical seafloor mapping data collected enable reconstruction of past oceanic environments. Evaluation of these data suggests that the two major Arctic Ocean circulation systems, the Trans-Polar Drift and the Beaufort Gyre, persisted throughout most of the Late to Middle Quaternary, approximately the last 0.5 to 0.7 million years. Extreme conditions, nonanalogous to modern environments, also occurred in the past, especially during Pleistocene glacial intervals. Some of these intervals likely featured much thickened and/or concentrated sea ice and incursions of ice shelves and armadas of megasized icebergs from the margins to the center of the Arctic Ocean. In contrast, much warmer conditions with reduced sea ice extent existed during interglacial periods. Characterization of ice conditions during these intervals is critical for evaluating the present and projected future reduction of Arctic sea ice. Oceanography, Arctic Ocean, Sediments, Cenozoic, Paloceanograpgy |
format |
Article in Journal/Newspaper |
author |
Polyak, Leonid Jakobsson, Martin |
author_facet |
Polyak, Leonid Jakobsson, Martin |
author_sort |
Polyak, Leonid |
title |
Quaternary sedimentation in the Arctic Ocean : Recent advances and further challenges |
title_short |
Quaternary sedimentation in the Arctic Ocean : Recent advances and further challenges |
title_full |
Quaternary sedimentation in the Arctic Ocean : Recent advances and further challenges |
title_fullStr |
Quaternary sedimentation in the Arctic Ocean : Recent advances and further challenges |
title_full_unstemmed |
Quaternary sedimentation in the Arctic Ocean : Recent advances and further challenges |
title_sort |
quaternary sedimentation in the arctic ocean : recent advances and further challenges |
publisher |
Institutionen för geologiska vetenskaper |
publishDate |
2011 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-67228 https://doi.org/10.5670/oceanog.2011.55 |
geographic |
Arctic Arctic Ocean Greenland |
geographic_facet |
Arctic Arctic Ocean Greenland |
genre |
Arctic Arctic Ocean Climate change Greenland Ice Shelves Iceberg* Lomonosov Ridge oden Sea ice |
genre_facet |
Arctic Arctic Ocean Climate change Greenland Ice Shelves Iceberg* Lomonosov Ridge oden Sea ice |
op_relation |
Oceanography, 1042-8275, 2011, 24:3, s. 52-64 http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-67228 doi:10.5670/oceanog.2011.55 ISI:000295394700010 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5670/oceanog.2011.55 |
container_title |
Oceanography |
container_volume |
24 |
container_issue |
3 |
container_start_page |
52 |
op_container_end_page |
64 |
_version_ |
1766308011304812544 |