Simulated global carbon cycle changes for an isolated Arctic Ocean during the Eocene-Oligocene
We use the box model BICYCLE-SE to simulate the effect of a much shallower Greenland-Scotland-Ridge, as it has been during the Eocene and Oligocene, on the global carbon cycle. Applying the boundary conditions (geometry of boxes, water fluxes, salinity) connected with a lagoonal Eocene setting of th...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.942949 2023-05-15T14:22:57+02:00 Simulated global carbon cycle changes for an isolated Arctic Ocean during the Eocene-Oligocene Köhler, Peter Knorr, Gregor 2022-04-01 application/gzip, 28.7 kBytes https://doi.pangaea.de/10.1594/PANGAEA.942949 en eng PANGAEA Köhler, Peter; Knorr, Gregor (submitted): The role of an isolated Arctic Ocean during the Eocene-Oligocene for the global carbon cycle. https://doi.pangaea.de/10.1594/PANGAEA.942949 Access constraints: access rights needed info:eu-repo/semantics/restrictedAccess Arctic Ocean Carbon cycle CO2 Eocene-Oligocene Transition Greenland-Scotland Ridge modelling Dataset 2022 ftpangaea 2022-05-11T11:18:09Z We use the box model BICYCLE-SE to simulate the effect of a much shallower Greenland-Scotland-Ridge, as it has been during the Eocene and Oligocene, on the global carbon cycle. Applying the boundary conditions (geometry of boxes, water fluxes, salinity) connected with a lagoonal Eocene setting of the Arctic Ocean increases atmospheric CO2 concentration by 200 ppm. A further 60 ppm increase is caused by the effect of the long-term changes in mean oceanic concentration of magnesium and calcium. Depending on the assumed Eocene or Oligocene temperatures atmospheric CO2 concentration of 450–770 ppm can thus be simulated. Furthermore, in our simulations the calcite saturation horizon in the Eocene Arctic Ocean is much shallower than today. The fraction of calcite in the sedimentary mixed layer as function of water depth in the Arctic, Atlantic, and Pacific are analysed for the regional to global effects of these changes in the carbon cycle. Dataset Arctic Arctic Arctic Ocean Greenland Greenland-Scotland Ridge PANGAEA - Data Publisher for Earth & Environmental Science Arctic Arctic Ocean Greenland Pacific |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Arctic Ocean Carbon cycle CO2 Eocene-Oligocene Transition Greenland-Scotland Ridge modelling |
spellingShingle |
Arctic Ocean Carbon cycle CO2 Eocene-Oligocene Transition Greenland-Scotland Ridge modelling Köhler, Peter Knorr, Gregor Simulated global carbon cycle changes for an isolated Arctic Ocean during the Eocene-Oligocene |
topic_facet |
Arctic Ocean Carbon cycle CO2 Eocene-Oligocene Transition Greenland-Scotland Ridge modelling |
description |
We use the box model BICYCLE-SE to simulate the effect of a much shallower Greenland-Scotland-Ridge, as it has been during the Eocene and Oligocene, on the global carbon cycle. Applying the boundary conditions (geometry of boxes, water fluxes, salinity) connected with a lagoonal Eocene setting of the Arctic Ocean increases atmospheric CO2 concentration by 200 ppm. A further 60 ppm increase is caused by the effect of the long-term changes in mean oceanic concentration of magnesium and calcium. Depending on the assumed Eocene or Oligocene temperatures atmospheric CO2 concentration of 450–770 ppm can thus be simulated. Furthermore, in our simulations the calcite saturation horizon in the Eocene Arctic Ocean is much shallower than today. The fraction of calcite in the sedimentary mixed layer as function of water depth in the Arctic, Atlantic, and Pacific are analysed for the regional to global effects of these changes in the carbon cycle. |
format |
Dataset |
author |
Köhler, Peter Knorr, Gregor |
author_facet |
Köhler, Peter Knorr, Gregor |
author_sort |
Köhler, Peter |
title |
Simulated global carbon cycle changes for an isolated Arctic Ocean during the Eocene-Oligocene |
title_short |
Simulated global carbon cycle changes for an isolated Arctic Ocean during the Eocene-Oligocene |
title_full |
Simulated global carbon cycle changes for an isolated Arctic Ocean during the Eocene-Oligocene |
title_fullStr |
Simulated global carbon cycle changes for an isolated Arctic Ocean during the Eocene-Oligocene |
title_full_unstemmed |
Simulated global carbon cycle changes for an isolated Arctic Ocean during the Eocene-Oligocene |
title_sort |
simulated global carbon cycle changes for an isolated arctic ocean during the eocene-oligocene |
publisher |
PANGAEA |
publishDate |
2022 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.942949 |
geographic |
Arctic Arctic Ocean Greenland Pacific |
geographic_facet |
Arctic Arctic Ocean Greenland Pacific |
genre |
Arctic Arctic Arctic Ocean Greenland Greenland-Scotland Ridge |
genre_facet |
Arctic Arctic Arctic Ocean Greenland Greenland-Scotland Ridge |
op_relation |
Köhler, Peter; Knorr, Gregor (submitted): The role of an isolated Arctic Ocean during the Eocene-Oligocene for the global carbon cycle. https://doi.pangaea.de/10.1594/PANGAEA.942949 |
op_rights |
Access constraints: access rights needed info:eu-repo/semantics/restrictedAccess |
_version_ |
1766295451161591808 |