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Regional synthesis of Mediterranean atmospheric circulation during the last glacial maximum

Regional synthesis of Mediterranean atmospheric circulation during the last glacial maximum
Regional synthesis of Mediterranean atmospheric circulation during the last glacial maximum
Atmospheric circulation leaves few direct traces in the geological record, making reconstructions of this crucial element of the climate system inherently difficult. We produced a regional Mediterranean synthesis of paleo-proxy data from the sea surface to alpine altitudes. This provides a detailed observational context for change in the three-dimensional structure of atmospheric circulation between the Last Glacial Maximum (LGM, ?23,000 to 19,000 years ago) and the present. The synthesis reveals evidence for frequent cold polar air incursions, topographically channeled into the northwestern Mediterranean. Anomalously steep vertical temperature gradients in the central Mediterranean imply local convective precipitation. We find the LGM patterns to be analogous, though amplified, to previously reconstructed phases of enhanced meridional winter circulation during the Maunder Minimum (the Little Ice Age).
0036-8075
1338-1340
Kuhlemann, J.
0dd68a2e-3e12-4e41-b842-2aba8e68c64b
Rohling, E.J.
a2a27ef2-fcce-4c71-907b-e692b5ecc685
Kumrei, I.
fe69cfac-ba89-4c09-b57a-916f7ba93c26
Kubik, P.
083f31b8-a767-4943-951a-bb722640dff9
Ivy-Ochs, S.
819fba8b-c484-4873-bbe2-e05959657eb0
Kucera, M.
1dfd204d-24e1-4e03-b465-c60bb4ac74f7
Kuhlemann, J.
0dd68a2e-3e12-4e41-b842-2aba8e68c64b
Rohling, E.J.
a2a27ef2-fcce-4c71-907b-e692b5ecc685
Kumrei, I.
fe69cfac-ba89-4c09-b57a-916f7ba93c26
Kubik, P.
083f31b8-a767-4943-951a-bb722640dff9
Ivy-Ochs, S.
819fba8b-c484-4873-bbe2-e05959657eb0
Kucera, M.
1dfd204d-24e1-4e03-b465-c60bb4ac74f7

Kuhlemann, J., Rohling, E.J., Kumrei, I., Kubik, P., Ivy-Ochs, S. and Kucera, M. (2008) Regional synthesis of Mediterranean atmospheric circulation during the last glacial maximum. Science, 321 (5894), 1338-1340. (doi:10.1126/science.1157638).

Record type: Article

Abstract

Atmospheric circulation leaves few direct traces in the geological record, making reconstructions of this crucial element of the climate system inherently difficult. We produced a regional Mediterranean synthesis of paleo-proxy data from the sea surface to alpine altitudes. This provides a detailed observational context for change in the three-dimensional structure of atmospheric circulation between the Last Glacial Maximum (LGM, ?23,000 to 19,000 years ago) and the present. The synthesis reveals evidence for frequent cold polar air incursions, topographically channeled into the northwestern Mediterranean. Anomalously steep vertical temperature gradients in the central Mediterranean imply local convective precipitation. We find the LGM patterns to be analogous, though amplified, to previously reconstructed phases of enhanced meridional winter circulation during the Maunder Minimum (the Little Ice Age).

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More information

e-pub ahead of print date: 31 July 2008
Published date: 5 September 2008
Organisations: Ocean and Earth Science

Identifiers

Local EPrints ID: 55559
URI: http://eprints.soton.ac.uk/id/eprint/55559
ISSN: 0036-8075
PURE UUID: 84edb40b-6d49-43c1-8bbc-2df7275bedf9
ORCID for E.J. Rohling: ORCID iD orcid.org/0000-0001-5349-2158

Catalogue record

Date deposited: 04 Aug 2008
Last modified: 16 Mar 2024 02:46

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Contributors

Author: J. Kuhlemann
Author: E.J. Rohling ORCID iD
Author: I. Kumrei
Author: P. Kubik
Author: S. Ivy-Ochs
Author: M. Kucera

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