Latest Pliocene and earliest Pleistocene multi-proxy records of IODP Site 306-U1314
The global climate has been dominated by glacial-interglacial variations since the intensification of Northern Hemisphere glaciation 2.7 million years ago. Although the Atlantic meridional overturning circulation has exerted strong influence on recent climatic changes, there is controversy over its...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.922223 2023-05-15T16:50:15+02:00 Latest Pliocene and earliest Pleistocene multi-proxy records of IODP Site 306-U1314 Hayashi, Tatsuya Yamanaka, Toshiro Hikasa, Yuki Sato, Masahiko Kuwahara, Yoshihiro Ohno, Masao LATITUDE: 56.364000 * LONGITUDE: -27.888000 * DATE/TIME START: 2005-04-07T00:00:00 * DATE/TIME END: 2005-04-10T00:00:00 2020-09-02 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.922223 https://doi.org/10.1594/PANGAEA.922223 en eng PANGAEA Hayashi, Tatsuya; Yamanaka, Toshiro; Hikasa, Yuki; Sato, Masahiko; Kuwahara, Yoshihiro; Ohno, Masao (2020): Latest Pliocene Northern Hemisphere glaciation amplified by intensified Atlantic meridional overturning circulation. Communications Earth & Environment, 1, 25, https://doi.org/10.1038/s43247-020-00023-4 https://doi.pangaea.de/10.1594/PANGAEA.922223 https://doi.org/10.1594/PANGAEA.922223 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Integrated Ocean Drilling Program / International Ocean Discovery Program IODP Dataset 2020 ftpangaea https://doi.org/10.1594/PANGAEA.922223 2023-01-20T07:34:38Z The global climate has been dominated by glacial-interglacial variations since the intensification of Northern Hemisphere glaciation 2.7 million years ago. Although the Atlantic meridional overturning circulation has exerted strong influence on recent climatic changes, there is controversy over its influence on Northern Hemisphere glaciation because its deep limb, North Atlantic Deep Water, was thought to have weakened. Here we show that Northern Hemisphere glaciation was amplified by the intensified Atlantic meridional overturning circulation, based on multi-proxy records from the subpolar North Atlantic. We found that the Iceland-Scotland Overflow Water, contributing North Atlantic Deep Water, significantly increased after 2.7 million years ago and was actively maintained even in early stages of individual glacials, in contrast with late stages when it drastically decreased because of iceberg melting. Probably, the active Nordic Seas overturning during the early stages of glacials facilitated the efficient growth of ice sheets and amplified glacial oscillations. Dataset Iceland Nordic Seas North Atlantic Deep Water North Atlantic PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-27.888000,-27.888000,56.364000,56.364000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Integrated Ocean Drilling Program / International Ocean Discovery Program IODP |
spellingShingle |
Integrated Ocean Drilling Program / International Ocean Discovery Program IODP Hayashi, Tatsuya Yamanaka, Toshiro Hikasa, Yuki Sato, Masahiko Kuwahara, Yoshihiro Ohno, Masao Latest Pliocene and earliest Pleistocene multi-proxy records of IODP Site 306-U1314 |
topic_facet |
Integrated Ocean Drilling Program / International Ocean Discovery Program IODP |
description |
The global climate has been dominated by glacial-interglacial variations since the intensification of Northern Hemisphere glaciation 2.7 million years ago. Although the Atlantic meridional overturning circulation has exerted strong influence on recent climatic changes, there is controversy over its influence on Northern Hemisphere glaciation because its deep limb, North Atlantic Deep Water, was thought to have weakened. Here we show that Northern Hemisphere glaciation was amplified by the intensified Atlantic meridional overturning circulation, based on multi-proxy records from the subpolar North Atlantic. We found that the Iceland-Scotland Overflow Water, contributing North Atlantic Deep Water, significantly increased after 2.7 million years ago and was actively maintained even in early stages of individual glacials, in contrast with late stages when it drastically decreased because of iceberg melting. Probably, the active Nordic Seas overturning during the early stages of glacials facilitated the efficient growth of ice sheets and amplified glacial oscillations. |
format |
Dataset |
author |
Hayashi, Tatsuya Yamanaka, Toshiro Hikasa, Yuki Sato, Masahiko Kuwahara, Yoshihiro Ohno, Masao |
author_facet |
Hayashi, Tatsuya Yamanaka, Toshiro Hikasa, Yuki Sato, Masahiko Kuwahara, Yoshihiro Ohno, Masao |
author_sort |
Hayashi, Tatsuya |
title |
Latest Pliocene and earliest Pleistocene multi-proxy records of IODP Site 306-U1314 |
title_short |
Latest Pliocene and earliest Pleistocene multi-proxy records of IODP Site 306-U1314 |
title_full |
Latest Pliocene and earliest Pleistocene multi-proxy records of IODP Site 306-U1314 |
title_fullStr |
Latest Pliocene and earliest Pleistocene multi-proxy records of IODP Site 306-U1314 |
title_full_unstemmed |
Latest Pliocene and earliest Pleistocene multi-proxy records of IODP Site 306-U1314 |
title_sort |
latest pliocene and earliest pleistocene multi-proxy records of iodp site 306-u1314 |
publisher |
PANGAEA |
publishDate |
2020 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.922223 https://doi.org/10.1594/PANGAEA.922223 |
op_coverage |
LATITUDE: 56.364000 * LONGITUDE: -27.888000 * DATE/TIME START: 2005-04-07T00:00:00 * DATE/TIME END: 2005-04-10T00:00:00 |
long_lat |
ENVELOPE(-27.888000,-27.888000,56.364000,56.364000) |
genre |
Iceland Nordic Seas North Atlantic Deep Water North Atlantic |
genre_facet |
Iceland Nordic Seas North Atlantic Deep Water North Atlantic |
op_relation |
Hayashi, Tatsuya; Yamanaka, Toshiro; Hikasa, Yuki; Sato, Masahiko; Kuwahara, Yoshihiro; Ohno, Masao (2020): Latest Pliocene Northern Hemisphere glaciation amplified by intensified Atlantic meridional overturning circulation. Communications Earth & Environment, 1, 25, https://doi.org/10.1038/s43247-020-00023-4 https://doi.pangaea.de/10.1594/PANGAEA.922223 https://doi.org/10.1594/PANGAEA.922223 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.922223 |
_version_ |
1766040423718977536 |