Tropical Atlantic temperature seasonality at the end of the last interglacial
The end of the last interglacial period, ~118 kyr ago, was characterized by substantial ocean circulation and climate perturbations resulting from instabilities of polar ice sheets. These perturbations are crucial for a better understanding of future climate change. The seasonal temperature changes...
Published in: | Nature Communications |
---|---|
Main Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
ePublications@SCU
2015
|
Subjects: | |
Online Access: | https://epubs.scu.edu.au/esm_pubs/3362 https://doi.org/10.1038/ncomms7159 |
id |
ftsoutherncu:oai:epubs.scu.edu.au:esm_pubs-4390 |
---|---|
record_format |
openpolar |
spelling |
ftsoutherncu:oai:epubs.scu.edu.au:esm_pubs-4390 2023-05-15T17:32:42+02:00 Tropical Atlantic temperature seasonality at the end of the last interglacial Felis, Thomas Giry, Cyril Scholz, Denis Lohmann, Gerrit Pfeiffer, Madlene Pätzold, Jürgen Kölling, Martin Scheffers, Sander R 2015-01-01T08:00:00Z https://epubs.scu.edu.au/esm_pubs/3362 https://doi.org/10.1038/ncomms7159 unknown ePublications@SCU School of Environment, Science and Engineering Papers earth sciences climate science oceanography Environmental Sciences Marine Biology Terrestrial and Aquatic Ecology article 2015 ftsoutherncu https://doi.org/10.1038/ncomms7159 2019-08-06T13:11:44Z The end of the last interglacial period, ~118 kyr ago, was characterized by substantial ocean circulation and climate perturbations resulting from instabilities of polar ice sheets. These perturbations are crucial for a better understanding of future climate change. The seasonal temperature changes of the tropical ocean, however, which play an important role in seasonal climate extremes such as hurricanes, floods and droughts at the present day, are not well known for this period that led into the last glacial. Here we present a monthly resolved snapshot of reconstructed sea surface temperature in the tropical North Atlantic Ocean for 117.7±0.8 kyr ago, using coral Sr/Ca and δ18O records. We find that temperature seasonality was similar to today, which is consistent with the orbital insolation forcing. Our coral and climate model results suggest that temperature seasonality of the tropical surface ocean is controlled mainly by orbital insolation changes during interglacials. Article in Journal/Newspaper North Atlantic Southern Cross University: epublications@SCU Nature Communications 6 1 |
institution |
Open Polar |
collection |
Southern Cross University: epublications@SCU |
op_collection_id |
ftsoutherncu |
language |
unknown |
topic |
earth sciences climate science oceanography Environmental Sciences Marine Biology Terrestrial and Aquatic Ecology |
spellingShingle |
earth sciences climate science oceanography Environmental Sciences Marine Biology Terrestrial and Aquatic Ecology Felis, Thomas Giry, Cyril Scholz, Denis Lohmann, Gerrit Pfeiffer, Madlene Pätzold, Jürgen Kölling, Martin Scheffers, Sander R Tropical Atlantic temperature seasonality at the end of the last interglacial |
topic_facet |
earth sciences climate science oceanography Environmental Sciences Marine Biology Terrestrial and Aquatic Ecology |
description |
The end of the last interglacial period, ~118 kyr ago, was characterized by substantial ocean circulation and climate perturbations resulting from instabilities of polar ice sheets. These perturbations are crucial for a better understanding of future climate change. The seasonal temperature changes of the tropical ocean, however, which play an important role in seasonal climate extremes such as hurricanes, floods and droughts at the present day, are not well known for this period that led into the last glacial. Here we present a monthly resolved snapshot of reconstructed sea surface temperature in the tropical North Atlantic Ocean for 117.7±0.8 kyr ago, using coral Sr/Ca and δ18O records. We find that temperature seasonality was similar to today, which is consistent with the orbital insolation forcing. Our coral and climate model results suggest that temperature seasonality of the tropical surface ocean is controlled mainly by orbital insolation changes during interglacials. |
format |
Article in Journal/Newspaper |
author |
Felis, Thomas Giry, Cyril Scholz, Denis Lohmann, Gerrit Pfeiffer, Madlene Pätzold, Jürgen Kölling, Martin Scheffers, Sander R |
author_facet |
Felis, Thomas Giry, Cyril Scholz, Denis Lohmann, Gerrit Pfeiffer, Madlene Pätzold, Jürgen Kölling, Martin Scheffers, Sander R |
author_sort |
Felis, Thomas |
title |
Tropical Atlantic temperature seasonality at the end of the last interglacial |
title_short |
Tropical Atlantic temperature seasonality at the end of the last interglacial |
title_full |
Tropical Atlantic temperature seasonality at the end of the last interglacial |
title_fullStr |
Tropical Atlantic temperature seasonality at the end of the last interglacial |
title_full_unstemmed |
Tropical Atlantic temperature seasonality at the end of the last interglacial |
title_sort |
tropical atlantic temperature seasonality at the end of the last interglacial |
publisher |
ePublications@SCU |
publishDate |
2015 |
url |
https://epubs.scu.edu.au/esm_pubs/3362 https://doi.org/10.1038/ncomms7159 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
School of Environment, Science and Engineering Papers |
op_doi |
https://doi.org/10.1038/ncomms7159 |
container_title |
Nature Communications |
container_volume |
6 |
container_issue |
1 |
_version_ |
1766130935084875776 |