Investigations on fossil bivalves and wood from Seymour Island, Antarctica
Quasi-periodic variation in sea-surface temperature, precipitation, and sea-level pressure in the equatorial Pacific known as the El Niño - Southern Oscillation (ENSO) is an important mode of interannual variability in global climate. A collapse of the tropical Pacific onto a state resembling a so-c...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.771390 2023-05-15T13:42:10+02:00 Investigations on fossil bivalves and wood from Seymour Island, Antarctica Ivany, Linda C Brey, Thomas Huber, Matthew Buick, Devin P Schöne, Bernd R LATITUDE: -64.280000 * LONGITUDE: -56.740000 2011-11-15 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.771390 https://doi.org/10.1594/PANGAEA.771390 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.771390 https://doi.org/10.1594/PANGAEA.771390 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Ivany, Linda C; Brey, Thomas; Huber, Matthew; Buick, Devin P; Schöne, Bernd R (2011): El Niño in the Eocene greenhouse recorded by fossil bivalves and wood from Antarctica. Geophysical Research Letters, 38, L16709, https://doi.org/10.1029/2011GL048635 Antarctic Peninsula HAND Long-term Ecological Research at AWI LTER Sampling by hand Seymour_Island Dataset 2011 ftpangaea https://doi.org/10.1594/PANGAEA.771390 https://doi.org/10.1029/2011GL048635 2023-01-20T07:32:20Z Quasi-periodic variation in sea-surface temperature, precipitation, and sea-level pressure in the equatorial Pacific known as the El Niño - Southern Oscillation (ENSO) is an important mode of interannual variability in global climate. A collapse of the tropical Pacific onto a state resembling a so-called 'permanent El Niño', with a preferentially warmed eastern equatorial Pacific, flatter thermocline, and reduced interannual variability, in a warmer world is predicted by prevailing ENSO theory. If correct, future warming will be accompanied by a shift toward persistent conditions resembling El Niño years today, with major implications for global hydrological cycles and consequent impacts on socioeconomic and ecological systems. However, much uncertainty remains about how interannual variability will be affected. Here, we present multi-annual records of climate derived from growth increment widths in fossil bivalves and co-occurring driftwood from the Antarctic peninsula that demonstrate significant variability in the quasi-biennial and 3-6 year bands consistent with ENSO, despite early Eocene (~50 Mya) greenhouse conditions with global average temperature -10 degrees higher than today. A coupled climate model suggests an ENSO signal and teleconnections to this region during the Eocene, much like today. The presence of ENSO variation during this markedly warmer interval argues for the persistence of robust interannual variability in our future greenhouse world. Dataset Antarc* Antarctic Antarctic Peninsula Antarctica Seymour Island PANGAEA - Data Publisher for Earth & Environmental Science Antarctic Antarctic Peninsula Pacific Seymour ENVELOPE(-56.767,-56.767,-64.283,-64.283) Seymour Island ENVELOPE(-56.750,-56.750,-64.283,-64.283) The Antarctic ENVELOPE(-56.740000,-56.740000,-64.280000,-64.280000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Antarctic Peninsula HAND Long-term Ecological Research at AWI LTER Sampling by hand Seymour_Island |
spellingShingle |
Antarctic Peninsula HAND Long-term Ecological Research at AWI LTER Sampling by hand Seymour_Island Ivany, Linda C Brey, Thomas Huber, Matthew Buick, Devin P Schöne, Bernd R Investigations on fossil bivalves and wood from Seymour Island, Antarctica |
topic_facet |
Antarctic Peninsula HAND Long-term Ecological Research at AWI LTER Sampling by hand Seymour_Island |
description |
Quasi-periodic variation in sea-surface temperature, precipitation, and sea-level pressure in the equatorial Pacific known as the El Niño - Southern Oscillation (ENSO) is an important mode of interannual variability in global climate. A collapse of the tropical Pacific onto a state resembling a so-called 'permanent El Niño', with a preferentially warmed eastern equatorial Pacific, flatter thermocline, and reduced interannual variability, in a warmer world is predicted by prevailing ENSO theory. If correct, future warming will be accompanied by a shift toward persistent conditions resembling El Niño years today, with major implications for global hydrological cycles and consequent impacts on socioeconomic and ecological systems. However, much uncertainty remains about how interannual variability will be affected. Here, we present multi-annual records of climate derived from growth increment widths in fossil bivalves and co-occurring driftwood from the Antarctic peninsula that demonstrate significant variability in the quasi-biennial and 3-6 year bands consistent with ENSO, despite early Eocene (~50 Mya) greenhouse conditions with global average temperature -10 degrees higher than today. A coupled climate model suggests an ENSO signal and teleconnections to this region during the Eocene, much like today. The presence of ENSO variation during this markedly warmer interval argues for the persistence of robust interannual variability in our future greenhouse world. |
format |
Dataset |
author |
Ivany, Linda C Brey, Thomas Huber, Matthew Buick, Devin P Schöne, Bernd R |
author_facet |
Ivany, Linda C Brey, Thomas Huber, Matthew Buick, Devin P Schöne, Bernd R |
author_sort |
Ivany, Linda C |
title |
Investigations on fossil bivalves and wood from Seymour Island, Antarctica |
title_short |
Investigations on fossil bivalves and wood from Seymour Island, Antarctica |
title_full |
Investigations on fossil bivalves and wood from Seymour Island, Antarctica |
title_fullStr |
Investigations on fossil bivalves and wood from Seymour Island, Antarctica |
title_full_unstemmed |
Investigations on fossil bivalves and wood from Seymour Island, Antarctica |
title_sort |
investigations on fossil bivalves and wood from seymour island, antarctica |
publisher |
PANGAEA |
publishDate |
2011 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.771390 https://doi.org/10.1594/PANGAEA.771390 |
op_coverage |
LATITUDE: -64.280000 * LONGITUDE: -56.740000 |
long_lat |
ENVELOPE(-56.767,-56.767,-64.283,-64.283) ENVELOPE(-56.750,-56.750,-64.283,-64.283) ENVELOPE(-56.740000,-56.740000,-64.280000,-64.280000) |
geographic |
Antarctic Antarctic Peninsula Pacific Seymour Seymour Island The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula Pacific Seymour Seymour Island The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Seymour Island |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Seymour Island |
op_source |
Supplement to: Ivany, Linda C; Brey, Thomas; Huber, Matthew; Buick, Devin P; Schöne, Bernd R (2011): El Niño in the Eocene greenhouse recorded by fossil bivalves and wood from Antarctica. Geophysical Research Letters, 38, L16709, https://doi.org/10.1029/2011GL048635 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.771390 https://doi.org/10.1594/PANGAEA.771390 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.771390 https://doi.org/10.1029/2011GL048635 |
_version_ |
1766164145166614528 |