Subtropical Arctic Ocean temperatures during the Palaeocene/Eocene thermal maximum
The Palaeocene/Eocene thermal maximum, ∼55 million years ago, was a brief period of widespread, extreme climatic warming, that was associated with massive atmospheric greenhouse gas input. Although aspects of the resulting environmental changes are well documented at low latitudes, no data were avai...
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Online Access: | http://hdl.handle.net/11577/1564703 https://doi.org/10.1038/nature04668 |
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ftunivpadovairis:oai:www.research.unipd.it:11577/1564703 2024-01-21T09:58:42+01:00 Subtropical Arctic Ocean temperatures during the Palaeocene/Eocene thermal maximum SLUIJS A SCHOUTEN S PAGANI M WOLTERING M BRINKHUIS H SINNINGHE DAMST J. S DICKENS G. R HUBER M REICHART G. J STEIN R MATTHIESSEN J LOURENS L. J PEDENTCHOUK N BACKMAN J MORAN K CLEMENS S CRONIN T EYNAUD F GATTACCECA J JAKOBSSON M JORDAN R KAMINSKI M KING J KOC N MARTINEZ N. C MCINROY D MOORE T. C O'REGAN M ONODERA J PLIKE H REA B SAKAMOTO T SMITH D. C ST JOHN K. E. K SUTO I SUZUKI N TAKAHASHI K WATANABE M YAMAMOTO M. RIO, DOMENICO Sluijs, A Schouten, S Pagani, M Woltering, M Brinkhuis, H SINNINGHE DAMST J., S DICKENS G., R Huber, M REICHART G., J Stein, R Matthiessen, J LOURENS L., J Pedentchouk, N Backman, J Moran, K Clemens, S Cronin, T Eynaud, F Gattacceca, J Jakobsson, M Jordan, R Kaminski, M King, J Koc, N MARTINEZ N., C Mcinroy, D MOORE T., C O'Regan, M Onodera, J Plike, H Rea, B Rio, Domenico Sakamoto, T SMITH D., C ST JOHN K. E., K Suto, I Suzuki, N Takahashi, K Watanabe, M Yamamoto, M. 2006 STAMPA http://hdl.handle.net/11577/1564703 https://doi.org/10.1038/nature04668 eng eng volume:441 firstpage:610 lastpage:613 numberofpages:4 journal:NATURE http://hdl.handle.net/11577/1564703 doi:10.1038/nature04668 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-33745272227 Arctic Region Dinoflagellida Geologic Sediment Greenhouse Effect Spore Temperature Time Factor Tropical Climate info:eu-repo/semantics/article 2006 ftunivpadovairis https://doi.org/10.1038/nature04668 2023-12-27T17:37:47Z The Palaeocene/Eocene thermal maximum, ∼55 million years ago, was a brief period of widespread, extreme climatic warming, that was associated with massive atmospheric greenhouse gas input. Although aspects of the resulting environmental changes are well documented at low latitudes, no data were available to quantify simultaneous changes in the Arctic region. Here we identify the Palaeocene/Eocene thermal maximum in a marine sedimentary sequence obtained during the Arctic Coring Expedition. We show that sea surface temperatures near the North Pole increased from ∼18°C to over 23°C during this event. Such warm values imply the absence of ice and thus exclude the influence of ice-albedo feedbacks on this Arctic warming. At the same time, sea level rose while anoxic and euxinic conditions developed in the ocean's bottom waters and photic zone, respectively. Increasing temperature and sea level match expectations based on palaeoclimate model simulations, but the absolute polar temperatures that we derive before, during and after the event are more than 10°C warmer than those model-predicted. This suggests that higher-than-modern greenhouse gas concentrations must have operated in conjunction with other feedback mechanisms-perhaps polar stratospheric clouds or hurricane-induced ocean mixing-to amplify early Palaeogene polar temperatures. © 2006 Nature Publishing Group. Article in Journal/Newspaper albedo Arctic Arctic Ocean North Pole Padua Research Archive (IRIS - Università degli Studi di Padova) Arctic Arctic Ocean North Pole Nature 441 7093 610 613 |
institution |
Open Polar |
collection |
Padua Research Archive (IRIS - Università degli Studi di Padova) |
op_collection_id |
ftunivpadovairis |
language |
English |
topic |
Arctic Region Dinoflagellida Geologic Sediment Greenhouse Effect Spore Temperature Time Factor Tropical Climate |
spellingShingle |
Arctic Region Dinoflagellida Geologic Sediment Greenhouse Effect Spore Temperature Time Factor Tropical Climate SLUIJS A SCHOUTEN S PAGANI M WOLTERING M BRINKHUIS H SINNINGHE DAMST J. S DICKENS G. R HUBER M REICHART G. J STEIN R MATTHIESSEN J LOURENS L. J PEDENTCHOUK N BACKMAN J MORAN K CLEMENS S CRONIN T EYNAUD F GATTACCECA J JAKOBSSON M JORDAN R KAMINSKI M KING J KOC N MARTINEZ N. C MCINROY D MOORE T. C O'REGAN M ONODERA J PLIKE H REA B SAKAMOTO T SMITH D. C ST JOHN K. E. K SUTO I SUZUKI N TAKAHASHI K WATANABE M YAMAMOTO M. RIO, DOMENICO Subtropical Arctic Ocean temperatures during the Palaeocene/Eocene thermal maximum |
topic_facet |
Arctic Region Dinoflagellida Geologic Sediment Greenhouse Effect Spore Temperature Time Factor Tropical Climate |
description |
The Palaeocene/Eocene thermal maximum, ∼55 million years ago, was a brief period of widespread, extreme climatic warming, that was associated with massive atmospheric greenhouse gas input. Although aspects of the resulting environmental changes are well documented at low latitudes, no data were available to quantify simultaneous changes in the Arctic region. Here we identify the Palaeocene/Eocene thermal maximum in a marine sedimentary sequence obtained during the Arctic Coring Expedition. We show that sea surface temperatures near the North Pole increased from ∼18°C to over 23°C during this event. Such warm values imply the absence of ice and thus exclude the influence of ice-albedo feedbacks on this Arctic warming. At the same time, sea level rose while anoxic and euxinic conditions developed in the ocean's bottom waters and photic zone, respectively. Increasing temperature and sea level match expectations based on palaeoclimate model simulations, but the absolute polar temperatures that we derive before, during and after the event are more than 10°C warmer than those model-predicted. This suggests that higher-than-modern greenhouse gas concentrations must have operated in conjunction with other feedback mechanisms-perhaps polar stratospheric clouds or hurricane-induced ocean mixing-to amplify early Palaeogene polar temperatures. © 2006 Nature Publishing Group. |
author2 |
Sluijs, A Schouten, S Pagani, M Woltering, M Brinkhuis, H SINNINGHE DAMST J., S DICKENS G., R Huber, M REICHART G., J Stein, R Matthiessen, J LOURENS L., J Pedentchouk, N Backman, J Moran, K Clemens, S Cronin, T Eynaud, F Gattacceca, J Jakobsson, M Jordan, R Kaminski, M King, J Koc, N MARTINEZ N., C Mcinroy, D MOORE T., C O'Regan, M Onodera, J Plike, H Rea, B Rio, Domenico Sakamoto, T SMITH D., C ST JOHN K. E., K Suto, I Suzuki, N Takahashi, K Watanabe, M Yamamoto, M. |
format |
Article in Journal/Newspaper |
author |
SLUIJS A SCHOUTEN S PAGANI M WOLTERING M BRINKHUIS H SINNINGHE DAMST J. S DICKENS G. R HUBER M REICHART G. J STEIN R MATTHIESSEN J LOURENS L. J PEDENTCHOUK N BACKMAN J MORAN K CLEMENS S CRONIN T EYNAUD F GATTACCECA J JAKOBSSON M JORDAN R KAMINSKI M KING J KOC N MARTINEZ N. C MCINROY D MOORE T. C O'REGAN M ONODERA J PLIKE H REA B SAKAMOTO T SMITH D. C ST JOHN K. E. K SUTO I SUZUKI N TAKAHASHI K WATANABE M YAMAMOTO M. RIO, DOMENICO |
author_facet |
SLUIJS A SCHOUTEN S PAGANI M WOLTERING M BRINKHUIS H SINNINGHE DAMST J. S DICKENS G. R HUBER M REICHART G. J STEIN R MATTHIESSEN J LOURENS L. J PEDENTCHOUK N BACKMAN J MORAN K CLEMENS S CRONIN T EYNAUD F GATTACCECA J JAKOBSSON M JORDAN R KAMINSKI M KING J KOC N MARTINEZ N. C MCINROY D MOORE T. C O'REGAN M ONODERA J PLIKE H REA B SAKAMOTO T SMITH D. C ST JOHN K. E. K SUTO I SUZUKI N TAKAHASHI K WATANABE M YAMAMOTO M. RIO, DOMENICO |
author_sort |
SLUIJS A |
title |
Subtropical Arctic Ocean temperatures during the Palaeocene/Eocene thermal maximum |
title_short |
Subtropical Arctic Ocean temperatures during the Palaeocene/Eocene thermal maximum |
title_full |
Subtropical Arctic Ocean temperatures during the Palaeocene/Eocene thermal maximum |
title_fullStr |
Subtropical Arctic Ocean temperatures during the Palaeocene/Eocene thermal maximum |
title_full_unstemmed |
Subtropical Arctic Ocean temperatures during the Palaeocene/Eocene thermal maximum |
title_sort |
subtropical arctic ocean temperatures during the palaeocene/eocene thermal maximum |
publishDate |
2006 |
url |
http://hdl.handle.net/11577/1564703 https://doi.org/10.1038/nature04668 |
geographic |
Arctic Arctic Ocean North Pole |
geographic_facet |
Arctic Arctic Ocean North Pole |
genre |
albedo Arctic Arctic Ocean North Pole |
genre_facet |
albedo Arctic Arctic Ocean North Pole |
op_relation |
volume:441 firstpage:610 lastpage:613 numberofpages:4 journal:NATURE http://hdl.handle.net/11577/1564703 doi:10.1038/nature04668 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-33745272227 |
op_doi |
https://doi.org/10.1038/nature04668 |
container_title |
Nature |
container_volume |
441 |
container_issue |
7093 |
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610 |
op_container_end_page |
613 |
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1788703060468432896 |