Arctic Ocean glacial history

Martin Jakobsson; Karin Andreassen; Lilja Rún Bjarnadóttir; Dayton Dove; Julian A. Dowdeswell; John H.  England; Svend Visby Funder; Kelly  Hogan; Ólafur  Ingólfsson; Anne  Jennings; Nikolaj Krog  Larsen; Nina  Kirchner; Jon Y.  Landvik; Larry  Mayer; Naja  Mikkelsen; Per  Möller; Frank  Niessen; Johan  Nilsson; Matt O'Regan; Leonid  Polyak; Niels  Nørgaard-Pedersen; Ruediger  Stein

doi:10.1016/j.quascirev.2013.07.033

Arctic Ocean glacial history

Martin Jakobsson, Karin Andreassen , Lilja Rún Bjarnadóttir , Dayton Dove, Julian A. Dowdeswell, John H. England, Svend Visby Funder, Kelly Hogan, Ólafur Ingólfsson, Anne Jennings, Nikolaj Krog Larsen, Nina Kirchner, Jon Y. Landvik, Larry Mayer, Naja Mikkelsen, Per Möller, Frank Niessen, Johan Nilsson, Matt O'Regan, Leonid PolyakNiels Nørgaard-Pedersen, Ruediger Stein

131 Citationer (Scopus)

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Abstract

While there are numerous hypotheses concerning glacial-interglacial environmental and climatic regime shifts in the Arctic Ocean, a holistic view on the Northern Hemisphere's late Quaternary ice-sheet extent and their impact on ocean and sea-ice dynamics remains to be established. Here we aim to provide a step in this direction by presenting an overview of Arctic Ocean glacial history, based on the present state-of-the-art knowledge gained from field work and chronological studies, and with a specific focus on ice-sheet extent and environmental conditions during the Last Glacial Maximum (LGM). The maximum Quaternary extension of ice sheets is discussed and compared to LGM. We bring together recent results from the circum-Arctic continental margins and the deep central basin; extent of ice sheets and ice streams bordering the Arctic Ocean as well as evidence for ice shelves extending into the central deep basin. Discrepancies between new results and published LGM ice-sheet reconstructions in the high Arctic are highlighted and outstanding questions are identified. Finally, we address the ability to simulate the Arctic Ocean ice sheet complexes and their dynamics, including ice streams and ice shelves, using presently available ice-sheet models. Our review shows that while we are able to firmly reject some of the earlier hypotheses formulated to describe Arctic Ocean glacial conditions, we still lack information from key areas to compile the holistic Arctic Ocean glacial history.

Originalsprog	Engelsk
Tidsskrift	Quaternary Science Reviews
Vol/bind	92
Sider (fra-til)	40-67
Antal sider	28
ISSN	0277-3791
DOI	https://doi.org/10.1016/j.quascirev.2013.07.033
Status	Udgivet - 15 maj 2014

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10.1016/j.quascirev.2013.07.033Licens: CC BY

Jakobsson_2014_Arctic_OceanForlagets udgivne version, 9,46 MBLicens: CC BY

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Jakobsson, M., Andreassen , K., Bjarnadóttir , L. R., Dove, D., Dowdeswell, J. A., England, J. H., Funder, S. V., Hogan, K., Ingólfsson, Ó., Jennings, A., Larsen, N. K., Kirchner, N., Landvik, J. Y., Mayer, L., Mikkelsen, N., Möller, P., Niessen, F., Nilsson, J., O'Regan, M., ... Stein, R. (2014). Arctic Ocean glacial history. Quaternary Science Reviews, 92, 40-67. https://doi.org/10.1016/j.quascirev.2013.07.033

Jakobsson, M, Andreassen , K, Bjarnadóttir , LR, Dove, D, Dowdeswell, JA, England, JH, Funder, SV, Hogan, K, Ingólfsson, Ó, Jennings, A, Larsen, NK, Kirchner, N, Landvik, JY, Mayer, L, Mikkelsen, N, Möller, P, Niessen, F, Nilsson, J, O'Regan, M, Polyak, L, Nørgaard-Pedersen, N & Stein, R 2014, 'Arctic Ocean glacial history', Quaternary Science Reviews, bind 92, s. 40-67. https://doi.org/10.1016/j.quascirev.2013.07.033

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abstract = "While there are numerous hypotheses concerning glacial-interglacial environmental and climatic regime shifts in the Arctic Ocean, a holistic view on the Northern Hemisphere's late Quaternary ice-sheet extent and their impact on ocean and sea-ice dynamics remains to be established. Here we aim to provide a step in this direction by presenting an overview of Arctic Ocean glacial history, based on the present state-of-the-art knowledge gained from field work and chronological studies, and with a specific focus on ice-sheet extent and environmental conditions during the Last Glacial Maximum (LGM). The maximum Quaternary extension of ice sheets is discussed and compared to LGM. We bring together recent results from the circum-Arctic continental margins and the deep central basin; extent of ice sheets and ice streams bordering the Arctic Ocean as well as evidence for ice shelves extending into the central deep basin. Discrepancies between new results and published LGM ice-sheet reconstructions in the high Arctic are highlighted and outstanding questions are identified. Finally, we address the ability to simulate the Arctic Ocean ice sheet complexes and their dynamics, including ice streams and ice shelves, using presently available ice-sheet models. Our review shows that while we are able to firmly reject some of the earlier hypotheses formulated to describe Arctic Ocean glacial conditions, we still lack information from key areas to compile the holistic Arctic Ocean glacial history.",

author = "Martin Jakobsson and Karin Andreassen and Bjarnad{\'o}ttir, {Lilja R{\'u}n} and Dayton Dove and Dowdeswell, {Julian A.} and England, {John H.} and Funder, {Svend Visby} and Kelly Hogan and {\'O}lafur Ing{\'o}lfsson and Anne Jennings and Larsen, {Nikolaj Krog} and Nina Kirchner and Landvik, {Jon Y.} and Larry Mayer and Naja Mikkelsen and Per M{\"o}ller and Frank Niessen and Johan Nilsson and Matt O'Regan and Leonid Polyak and Niels N{\o}rgaard-Pedersen and Ruediger Stein",

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AU - Jakobsson, Martin

AU - Andreassen , Karin

AU - Bjarnadóttir , Lilja Rún

AU - Dove, Dayton

AU - Dowdeswell, Julian A.

AU - England, John H.

AU - Funder, Svend Visby

AU - Hogan, Kelly

AU - Ingólfsson, Ólafur

AU - Jennings, Anne

AU - Larsen, Nikolaj Krog

AU - Kirchner, Nina

AU - Landvik, Jon Y.

AU - Mayer, Larry

AU - Mikkelsen, Naja

AU - Möller, Per

AU - Niessen, Frank

AU - Nilsson, Johan

AU - O'Regan, Matt

AU - Polyak, Leonid

AU - Nørgaard-Pedersen, Niels

AU - Stein, Ruediger

PY - 2014/5/15

Y1 - 2014/5/15

N2 - While there are numerous hypotheses concerning glacial-interglacial environmental and climatic regime shifts in the Arctic Ocean, a holistic view on the Northern Hemisphere's late Quaternary ice-sheet extent and their impact on ocean and sea-ice dynamics remains to be established. Here we aim to provide a step in this direction by presenting an overview of Arctic Ocean glacial history, based on the present state-of-the-art knowledge gained from field work and chronological studies, and with a specific focus on ice-sheet extent and environmental conditions during the Last Glacial Maximum (LGM). The maximum Quaternary extension of ice sheets is discussed and compared to LGM. We bring together recent results from the circum-Arctic continental margins and the deep central basin; extent of ice sheets and ice streams bordering the Arctic Ocean as well as evidence for ice shelves extending into the central deep basin. Discrepancies between new results and published LGM ice-sheet reconstructions in the high Arctic are highlighted and outstanding questions are identified. Finally, we address the ability to simulate the Arctic Ocean ice sheet complexes and their dynamics, including ice streams and ice shelves, using presently available ice-sheet models. Our review shows that while we are able to firmly reject some of the earlier hypotheses formulated to describe Arctic Ocean glacial conditions, we still lack information from key areas to compile the holistic Arctic Ocean glacial history.

AB - While there are numerous hypotheses concerning glacial-interglacial environmental and climatic regime shifts in the Arctic Ocean, a holistic view on the Northern Hemisphere's late Quaternary ice-sheet extent and their impact on ocean and sea-ice dynamics remains to be established. Here we aim to provide a step in this direction by presenting an overview of Arctic Ocean glacial history, based on the present state-of-the-art knowledge gained from field work and chronological studies, and with a specific focus on ice-sheet extent and environmental conditions during the Last Glacial Maximum (LGM). The maximum Quaternary extension of ice sheets is discussed and compared to LGM. We bring together recent results from the circum-Arctic continental margins and the deep central basin; extent of ice sheets and ice streams bordering the Arctic Ocean as well as evidence for ice shelves extending into the central deep basin. Discrepancies between new results and published LGM ice-sheet reconstructions in the high Arctic are highlighted and outstanding questions are identified. Finally, we address the ability to simulate the Arctic Ocean ice sheet complexes and their dynamics, including ice streams and ice shelves, using presently available ice-sheet models. Our review shows that while we are able to firmly reject some of the earlier hypotheses formulated to describe Arctic Ocean glacial conditions, we still lack information from key areas to compile the holistic Arctic Ocean glacial history.

U2 - 10.1016/j.quascirev.2013.07.033

DO - 10.1016/j.quascirev.2013.07.033

M3 - Review

SN - 0277-3791

VL - 92

SP - 40

EP - 67

JO - Quaternary Science Reviews

JF - Quaternary Science Reviews

ER -

Arctic Ocean glacial history

Abstract

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