Deep Ocean Storage of Heat and CO2 in the Fram Strait, Arctic Ocean During the Last Glacial Period ...
The Fram Strait is the only deep gateway between the Arctic Ocean and the Nordic Seas and thus is a key area to study past changes in ocean circulation and the marine carbon cycle. Here, we study deep ocean temperature, δ18O, carbonate chemistry (i.e., carbonate ion concentration [CO3 2−]), and nutr...
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2021
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ftdatacite:10.48350/157943 2024-09-15T17:53:20+00:00 Deep Ocean Storage of Heat and CO2 in the Fram Strait, Arctic Ocean During the Last Glacial Period ... Ezat, Mohamed M. Rasmussen, Tine L. Hain, Mathis P. Greaves, Mervyn Rae, James W. B. Zamelczyk, Katarzyna Marchitto, Thomas M. Szidat, Sönke Skinner, Luke C. 2021 https://dx.doi.org/10.48350/157943 https://boris.unibe.ch/157943/ unknown American Geophysical Union open access Creative Commons Attribution Non Commercial No Derivatives 4.0 International https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode cc-by-nc-nd-4.0 http://purl.org/coar/access_right/c_abf2 540 Chemistry Text ScholarlyArticle article-journal journal article 2021 ftdatacite https://doi.org/10.48350/157943 2024-09-02T10:17:31Z The Fram Strait is the only deep gateway between the Arctic Ocean and the Nordic Seas and thus is a key area to study past changes in ocean circulation and the marine carbon cycle. Here, we study deep ocean temperature, δ18O, carbonate chemistry (i.e., carbonate ion concentration [CO3 2−]), and nutrient content in the Fram Strait during the late glacial (35,000–19,000 years BP) and the Holocene based on benthic foraminiferal geochemistry and carbon cycle modeling. Our results indicate a thickening of Atlantic water penetrating into the northern Nordic Seas, forming a subsurface Atlantic intermediate water layer reaching to at least ∼2,600 m water depth during most of the late glacial period. The recirculating Atlantic layer was characterized by relatively high [CO3 2−] and low δ13C during the late glacial, and provides evidence for a Nordic Seas source to the glacial North Atlantic intermediate water flowing at 2,000–3,000 m water depth, most likely via the Denmark Strait. In addition, we discuss evidence ... Text Arctic Ocean Denmark Strait Foraminifera* Fram Strait Nordic Seas North Atlantic DataCite |
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540 Chemistry |
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540 Chemistry Ezat, Mohamed M. Rasmussen, Tine L. Hain, Mathis P. Greaves, Mervyn Rae, James W. B. Zamelczyk, Katarzyna Marchitto, Thomas M. Szidat, Sönke Skinner, Luke C. Deep Ocean Storage of Heat and CO2 in the Fram Strait, Arctic Ocean During the Last Glacial Period ... |
topic_facet |
540 Chemistry |
description |
The Fram Strait is the only deep gateway between the Arctic Ocean and the Nordic Seas and thus is a key area to study past changes in ocean circulation and the marine carbon cycle. Here, we study deep ocean temperature, δ18O, carbonate chemistry (i.e., carbonate ion concentration [CO3 2−]), and nutrient content in the Fram Strait during the late glacial (35,000–19,000 years BP) and the Holocene based on benthic foraminiferal geochemistry and carbon cycle modeling. Our results indicate a thickening of Atlantic water penetrating into the northern Nordic Seas, forming a subsurface Atlantic intermediate water layer reaching to at least ∼2,600 m water depth during most of the late glacial period. The recirculating Atlantic layer was characterized by relatively high [CO3 2−] and low δ13C during the late glacial, and provides evidence for a Nordic Seas source to the glacial North Atlantic intermediate water flowing at 2,000–3,000 m water depth, most likely via the Denmark Strait. In addition, we discuss evidence ... |
format |
Text |
author |
Ezat, Mohamed M. Rasmussen, Tine L. Hain, Mathis P. Greaves, Mervyn Rae, James W. B. Zamelczyk, Katarzyna Marchitto, Thomas M. Szidat, Sönke Skinner, Luke C. |
author_facet |
Ezat, Mohamed M. Rasmussen, Tine L. Hain, Mathis P. Greaves, Mervyn Rae, James W. B. Zamelczyk, Katarzyna Marchitto, Thomas M. Szidat, Sönke Skinner, Luke C. |
author_sort |
Ezat, Mohamed M. |
title |
Deep Ocean Storage of Heat and CO2 in the Fram Strait, Arctic Ocean During the Last Glacial Period ... |
title_short |
Deep Ocean Storage of Heat and CO2 in the Fram Strait, Arctic Ocean During the Last Glacial Period ... |
title_full |
Deep Ocean Storage of Heat and CO2 in the Fram Strait, Arctic Ocean During the Last Glacial Period ... |
title_fullStr |
Deep Ocean Storage of Heat and CO2 in the Fram Strait, Arctic Ocean During the Last Glacial Period ... |
title_full_unstemmed |
Deep Ocean Storage of Heat and CO2 in the Fram Strait, Arctic Ocean During the Last Glacial Period ... |
title_sort |
deep ocean storage of heat and co2 in the fram strait, arctic ocean during the last glacial period ... |
publisher |
American Geophysical Union |
publishDate |
2021 |
url |
https://dx.doi.org/10.48350/157943 https://boris.unibe.ch/157943/ |
genre |
Arctic Ocean Denmark Strait Foraminifera* Fram Strait Nordic Seas North Atlantic |
genre_facet |
Arctic Ocean Denmark Strait Foraminifera* Fram Strait Nordic Seas North Atlantic |
op_rights |
open access Creative Commons Attribution Non Commercial No Derivatives 4.0 International https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode cc-by-nc-nd-4.0 http://purl.org/coar/access_right/c_abf2 |
op_doi |
https://doi.org/10.48350/157943 |
_version_ |
1810295384079073280 |