Late Cenozoic Paleoceanography of the Central Arctic Ocean
The Arctic Ocean is the smallest and perhaps least accessible of the worlds oceans. It occupies only 26% of the global ocean area, and less than 10% of its volume [1]. However, it exerts a disproportionately large influence on the global climate system through a complex set of positive and negative...
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ftunivcardiff:oai:https://orca.cardiff.ac.uk:10758 2023-08-27T04:06:43+02:00 Late Cenozoic Paleoceanography of the Central Arctic Ocean O'Regan, Matt 2011 application/pdf https://orca.cardiff.ac.uk/id/eprint/10758/ http://iopscience.iop.org/1755-1315/14/1/012002/ https://orca.cardiff.ac.uk/id/eprint/10758/1/O%27Regan_2011_IOP_Conf_Proceedings.pdf https://doi.org/10.1088/1755-1315/14/1/012002 en eng IOP Publishing https://orca.cardiff.ac.uk/id/eprint/10758/1/O%27Regan_2011_IOP_Conf_Proceedings.pdf O'Regan, Matt 2011. Late Cenozoic Paleoceanography of the Central Arctic Ocean. IOP Conference Series: Earth and Environmental Science 14 (1) , 012002. 10.1088/1755-1315/14/1/012002 https://doi.org/10.1088/1755-1315%2F14%2F1%2F012002 file https://orca.cardiff.ac.uk/id/eprint/10758/1/O%27Regan_2011_IOP_Conf_Proceedings.pdf doi:10.1088/1755-1315/14/1/012002 GC Oceanography QE Geology Article PeerReviewed 2011 ftunivcardiff https://doi.org/10.1088/1755-1315/14/1/012002 2023-08-10T22:33:33Z The Arctic Ocean is the smallest and perhaps least accessible of the worlds oceans. It occupies only 26% of the global ocean area, and less than 10% of its volume [1]. However, it exerts a disproportionately large influence on the global climate system through a complex set of positive and negative feedback mechanisms directly or indirectly related to terrestrial ice and snow cover and sea ice. Increasingly, the northern high latitude cryosphere is seen as an exceptionally fragile part of the global climate system, a fact exemplified by observed reductions in sea ice extent during the past decades [2]. The paleoceanographic evolution of the Arctic Ocean can provide important insights into the physical forcing mechanisms that affect the form, intensity and permanence of ice in the high Arctic, and its sensitivity to these mechanisms in vastly different climate states of the past. However, marine records capturing the late Cenozoic paleoceanography of the Arctic are limited – most notably because only a single deep borehole exists from the central parts of this Ocean. This paper reviews the principal late Cenozoic (Neogene/Quaternary) results from the Arctic Coring Expedition to the Lomonosov Ridge and in light of recent data and observations on modern sea ice, outlines emerging questions related to three main themes: 1) the establishment of the 'modern' Arctic Ocean and the opening of the Fram Strait 2) the inception of perennial sea ice 3) The Quaternary intensification of Northern Hemisphere glaciations. Article in Journal/Newspaper Arctic Arctic Arctic Ocean Fram Strait Lomonosov Ridge Sea ice Cardiff University: ORCA (Online Research @ Cardiff) Arctic Arctic Ocean IOP Conference Series: Earth and Environmental Science 14 012002 |
institution |
Open Polar |
collection |
Cardiff University: ORCA (Online Research @ Cardiff) |
op_collection_id |
ftunivcardiff |
language |
English |
topic |
GC Oceanography QE Geology |
spellingShingle |
GC Oceanography QE Geology O'Regan, Matt Late Cenozoic Paleoceanography of the Central Arctic Ocean |
topic_facet |
GC Oceanography QE Geology |
description |
The Arctic Ocean is the smallest and perhaps least accessible of the worlds oceans. It occupies only 26% of the global ocean area, and less than 10% of its volume [1]. However, it exerts a disproportionately large influence on the global climate system through a complex set of positive and negative feedback mechanisms directly or indirectly related to terrestrial ice and snow cover and sea ice. Increasingly, the northern high latitude cryosphere is seen as an exceptionally fragile part of the global climate system, a fact exemplified by observed reductions in sea ice extent during the past decades [2]. The paleoceanographic evolution of the Arctic Ocean can provide important insights into the physical forcing mechanisms that affect the form, intensity and permanence of ice in the high Arctic, and its sensitivity to these mechanisms in vastly different climate states of the past. However, marine records capturing the late Cenozoic paleoceanography of the Arctic are limited – most notably because only a single deep borehole exists from the central parts of this Ocean. This paper reviews the principal late Cenozoic (Neogene/Quaternary) results from the Arctic Coring Expedition to the Lomonosov Ridge and in light of recent data and observations on modern sea ice, outlines emerging questions related to three main themes: 1) the establishment of the 'modern' Arctic Ocean and the opening of the Fram Strait 2) the inception of perennial sea ice 3) The Quaternary intensification of Northern Hemisphere glaciations. |
format |
Article in Journal/Newspaper |
author |
O'Regan, Matt |
author_facet |
O'Regan, Matt |
author_sort |
O'Regan, Matt |
title |
Late Cenozoic Paleoceanography of the Central Arctic Ocean |
title_short |
Late Cenozoic Paleoceanography of the Central Arctic Ocean |
title_full |
Late Cenozoic Paleoceanography of the Central Arctic Ocean |
title_fullStr |
Late Cenozoic Paleoceanography of the Central Arctic Ocean |
title_full_unstemmed |
Late Cenozoic Paleoceanography of the Central Arctic Ocean |
title_sort |
late cenozoic paleoceanography of the central arctic ocean |
publisher |
IOP Publishing |
publishDate |
2011 |
url |
https://orca.cardiff.ac.uk/id/eprint/10758/ http://iopscience.iop.org/1755-1315/14/1/012002/ https://orca.cardiff.ac.uk/id/eprint/10758/1/O%27Regan_2011_IOP_Conf_Proceedings.pdf https://doi.org/10.1088/1755-1315/14/1/012002 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Arctic Ocean Fram Strait Lomonosov Ridge Sea ice |
genre_facet |
Arctic Arctic Arctic Ocean Fram Strait Lomonosov Ridge Sea ice |
op_relation |
https://orca.cardiff.ac.uk/id/eprint/10758/1/O%27Regan_2011_IOP_Conf_Proceedings.pdf O'Regan, Matt 2011. Late Cenozoic Paleoceanography of the Central Arctic Ocean. IOP Conference Series: Earth and Environmental Science 14 (1) , 012002. 10.1088/1755-1315/14/1/012002 https://doi.org/10.1088/1755-1315%2F14%2F1%2F012002 file https://orca.cardiff.ac.uk/id/eprint/10758/1/O%27Regan_2011_IOP_Conf_Proceedings.pdf doi:10.1088/1755-1315/14/1/012002 |
op_doi |
https://doi.org/10.1088/1755-1315/14/1/012002 |
container_title |
IOP Conference Series: Earth and Environmental Science |
container_volume |
14 |
container_start_page |
012002 |
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1775347527945551872 |