An astronomically dated record of Earth’s climate and its predictability over the last 66 million years
Much of our understanding of Earth's past climate comes from the measurement of oxygen and carbon isotope variations in deep-sea benthic foraminifera. Yet, long intervals in existing records lack the temporal resolution and age control needed to thoroughly categorize climate states of the Cenoz...
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ftcdlib:oai:escholarship.org:ark:/13030/qt6vh4j5s2 2023-10-01T03:56:41+02:00 An astronomically dated record of Earth’s climate and its predictability over the last 66 million years Westerhold, Thomas Marwan, Norbert Drury, Anna Joy Liebrand, Diederik Agnini, Claudia Anagnostou, Eleni Barnet, James SK Bohaty, Steven M De Vleeschouwer, David Florindo, Fabio Frederichs, Thomas Hodell, David A Holbourn, Ann E Kroon, Dick Lauretano, Vittoria Littler, Kate Lourens, Lucas J Lyle, Mitchell Pälike, Heiko Röhl, Ursula Tian, Jun Wilkens, Roy H Wilson, Paul A Zachos, James C 1383 - 1387 2020-09-11 application/pdf https://escholarship.org/uc/item/6vh4j5s2 unknown eScholarship, University of California qt6vh4j5s2 https://escholarship.org/uc/item/6vh4j5s2 public Science, vol 369, iss 6509 Climate Action General Science & Technology article 2020 ftcdlib 2023-09-04T18:04:49Z Much of our understanding of Earth's past climate comes from the measurement of oxygen and carbon isotope variations in deep-sea benthic foraminifera. Yet, long intervals in existing records lack the temporal resolution and age control needed to thoroughly categorize climate states of the Cenozoic era and to study their dynamics. Here, we present a new, highly resolved, astronomically dated, continuous composite of benthic foraminifer isotope records developed in our laboratories. Four climate states-Hothouse, Warmhouse, Coolhouse, Icehouse-are identified on the basis of their distinctive response to astronomical forcing depending on greenhouse gas concentrations and polar ice sheet volume. Statistical analysis of the nonlinear behavior encoded in our record reveals the key role that polar ice volume plays in the predictability of Cenozoic climate dynamics. Article in Journal/Newspaper Ice Sheet University of California: eScholarship |
institution |
Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
unknown |
topic |
Climate Action General Science & Technology |
spellingShingle |
Climate Action General Science & Technology Westerhold, Thomas Marwan, Norbert Drury, Anna Joy Liebrand, Diederik Agnini, Claudia Anagnostou, Eleni Barnet, James SK Bohaty, Steven M De Vleeschouwer, David Florindo, Fabio Frederichs, Thomas Hodell, David A Holbourn, Ann E Kroon, Dick Lauretano, Vittoria Littler, Kate Lourens, Lucas J Lyle, Mitchell Pälike, Heiko Röhl, Ursula Tian, Jun Wilkens, Roy H Wilson, Paul A Zachos, James C An astronomically dated record of Earth’s climate and its predictability over the last 66 million years |
topic_facet |
Climate Action General Science & Technology |
description |
Much of our understanding of Earth's past climate comes from the measurement of oxygen and carbon isotope variations in deep-sea benthic foraminifera. Yet, long intervals in existing records lack the temporal resolution and age control needed to thoroughly categorize climate states of the Cenozoic era and to study their dynamics. Here, we present a new, highly resolved, astronomically dated, continuous composite of benthic foraminifer isotope records developed in our laboratories. Four climate states-Hothouse, Warmhouse, Coolhouse, Icehouse-are identified on the basis of their distinctive response to astronomical forcing depending on greenhouse gas concentrations and polar ice sheet volume. Statistical analysis of the nonlinear behavior encoded in our record reveals the key role that polar ice volume plays in the predictability of Cenozoic climate dynamics. |
format |
Article in Journal/Newspaper |
author |
Westerhold, Thomas Marwan, Norbert Drury, Anna Joy Liebrand, Diederik Agnini, Claudia Anagnostou, Eleni Barnet, James SK Bohaty, Steven M De Vleeschouwer, David Florindo, Fabio Frederichs, Thomas Hodell, David A Holbourn, Ann E Kroon, Dick Lauretano, Vittoria Littler, Kate Lourens, Lucas J Lyle, Mitchell Pälike, Heiko Röhl, Ursula Tian, Jun Wilkens, Roy H Wilson, Paul A Zachos, James C |
author_facet |
Westerhold, Thomas Marwan, Norbert Drury, Anna Joy Liebrand, Diederik Agnini, Claudia Anagnostou, Eleni Barnet, James SK Bohaty, Steven M De Vleeschouwer, David Florindo, Fabio Frederichs, Thomas Hodell, David A Holbourn, Ann E Kroon, Dick Lauretano, Vittoria Littler, Kate Lourens, Lucas J Lyle, Mitchell Pälike, Heiko Röhl, Ursula Tian, Jun Wilkens, Roy H Wilson, Paul A Zachos, James C |
author_sort |
Westerhold, Thomas |
title |
An astronomically dated record of Earth’s climate and its predictability over the last 66 million years |
title_short |
An astronomically dated record of Earth’s climate and its predictability over the last 66 million years |
title_full |
An astronomically dated record of Earth’s climate and its predictability over the last 66 million years |
title_fullStr |
An astronomically dated record of Earth’s climate and its predictability over the last 66 million years |
title_full_unstemmed |
An astronomically dated record of Earth’s climate and its predictability over the last 66 million years |
title_sort |
astronomically dated record of earth’s climate and its predictability over the last 66 million years |
publisher |
eScholarship, University of California |
publishDate |
2020 |
url |
https://escholarship.org/uc/item/6vh4j5s2 |
op_coverage |
1383 - 1387 |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
Science, vol 369, iss 6509 |
op_relation |
qt6vh4j5s2 https://escholarship.org/uc/item/6vh4j5s2 |
op_rights |
public |
_version_ |
1778526760485257216 |