Twentieth century δ13C variability in surface water dissolved inorganic carbon recorded by coralline algae in the northern North Pacific Ocean and the Bering Sea
The oxygen isotopic composition and Mg/Ca ratios in the skeletons of long-lived coralline algae record ambient seawater temperature over time. Similarly, the carbon isotopic composition in the skeletons record δ13C values of ambient seawater dissolved inorganic carbon. Here, we measured δ13C in the...
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2011
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00027917 2023-05-15T13:14:53+02:00 Twentieth century δ13C variability in surface water dissolved inorganic carbon recorded by coralline algae in the northern North Pacific Ocean and the Bering Sea Williams, B. Halfar, J. Steneck, R. S. Wortmann, U. G. Hetzinger, S. Adey, W. Lebednik, P. Joachimski, M. 2011-01 electronic https://doi.org/10.5194/bg-8-165-2011 https://noa.gwlb.de/receive/cop_mods_00027917 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00027872/bg-8-165-2011.pdf https://bg.copernicus.org/articles/8/165/2011/bg-8-165-2011.pdf eng eng Copernicus Publications Biogeosciences -- http://www.bibliothek.uni-regensburg.de/ezeit/?2158181 -- http://www.copernicus.org/EGU/bg/bg.html -- 1726-4189 https://doi.org/10.5194/bg-8-165-2011 https://noa.gwlb.de/receive/cop_mods_00027917 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00027872/bg-8-165-2011.pdf https://bg.copernicus.org/articles/8/165/2011/bg-8-165-2011.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2011 ftnonlinearchiv https://doi.org/10.5194/bg-8-165-2011 2022-02-08T22:48:26Z The oxygen isotopic composition and Mg/Ca ratios in the skeletons of long-lived coralline algae record ambient seawater temperature over time. Similarly, the carbon isotopic composition in the skeletons record δ13C values of ambient seawater dissolved inorganic carbon. Here, we measured δ13C in the coralline alga Clathromorphum nereostratum to test the feasibility of reconstructing the intrusion of anthropogenic CO2 into the northern North Pacific Ocean and Bering Sea. The δ13C was measured in the high Mg-calcite skeleton of three C. nereostratum specimens from two islands 500 km apart in the Aleutian archipelago. In the records spanning 1887 to 2003, the average decadal rate of decline in δ13C values increased from 0.03‰ yr−1 in the 1960s to 0.095‰ yr−1 in the 1990s, which was higher than expected due to solely the δ13C-Suess effect. Deeper water in this region exhibits higher concentrations of CO2 and low δ13C values. Transport of deeper water into surface water (i.e., upwelling) increases when the Aleutian Low is intensified. We hypothesized that the acceleration of the δ13C decline may result from increased upwelling from the 1960s to 1990s, which in turn was driven by increased intensity of the Aleutian Low. Detrended δ13C records also varied on 4–7 year and bidecadal timescales supporting an atmospheric teleconnection of tropical climate patterns to the northern North Pacific Ocean and Bering Sea manifested as changes in upwelling. Article in Journal/Newspaper aleutian low Bering Sea Niedersächsisches Online-Archiv NOA Bering Sea Pacific Biogeosciences 8 1 165 174 |
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Niedersächsisches Online-Archiv NOA |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Williams, B. Halfar, J. Steneck, R. S. Wortmann, U. G. Hetzinger, S. Adey, W. Lebednik, P. Joachimski, M. Twentieth century δ13C variability in surface water dissolved inorganic carbon recorded by coralline algae in the northern North Pacific Ocean and the Bering Sea |
topic_facet |
article Verlagsveröffentlichung |
description |
The oxygen isotopic composition and Mg/Ca ratios in the skeletons of long-lived coralline algae record ambient seawater temperature over time. Similarly, the carbon isotopic composition in the skeletons record δ13C values of ambient seawater dissolved inorganic carbon. Here, we measured δ13C in the coralline alga Clathromorphum nereostratum to test the feasibility of reconstructing the intrusion of anthropogenic CO2 into the northern North Pacific Ocean and Bering Sea. The δ13C was measured in the high Mg-calcite skeleton of three C. nereostratum specimens from two islands 500 km apart in the Aleutian archipelago. In the records spanning 1887 to 2003, the average decadal rate of decline in δ13C values increased from 0.03‰ yr−1 in the 1960s to 0.095‰ yr−1 in the 1990s, which was higher than expected due to solely the δ13C-Suess effect. Deeper water in this region exhibits higher concentrations of CO2 and low δ13C values. Transport of deeper water into surface water (i.e., upwelling) increases when the Aleutian Low is intensified. We hypothesized that the acceleration of the δ13C decline may result from increased upwelling from the 1960s to 1990s, which in turn was driven by increased intensity of the Aleutian Low. Detrended δ13C records also varied on 4–7 year and bidecadal timescales supporting an atmospheric teleconnection of tropical climate patterns to the northern North Pacific Ocean and Bering Sea manifested as changes in upwelling. |
format |
Article in Journal/Newspaper |
author |
Williams, B. Halfar, J. Steneck, R. S. Wortmann, U. G. Hetzinger, S. Adey, W. Lebednik, P. Joachimski, M. |
author_facet |
Williams, B. Halfar, J. Steneck, R. S. Wortmann, U. G. Hetzinger, S. Adey, W. Lebednik, P. Joachimski, M. |
author_sort |
Williams, B. |
title |
Twentieth century δ13C variability in surface water dissolved inorganic carbon recorded by coralline algae in the northern North Pacific Ocean and the Bering Sea |
title_short |
Twentieth century δ13C variability in surface water dissolved inorganic carbon recorded by coralline algae in the northern North Pacific Ocean and the Bering Sea |
title_full |
Twentieth century δ13C variability in surface water dissolved inorganic carbon recorded by coralline algae in the northern North Pacific Ocean and the Bering Sea |
title_fullStr |
Twentieth century δ13C variability in surface water dissolved inorganic carbon recorded by coralline algae in the northern North Pacific Ocean and the Bering Sea |
title_full_unstemmed |
Twentieth century δ13C variability in surface water dissolved inorganic carbon recorded by coralline algae in the northern North Pacific Ocean and the Bering Sea |
title_sort |
twentieth century δ13c variability in surface water dissolved inorganic carbon recorded by coralline algae in the northern north pacific ocean and the bering sea |
publisher |
Copernicus Publications |
publishDate |
2011 |
url |
https://doi.org/10.5194/bg-8-165-2011 https://noa.gwlb.de/receive/cop_mods_00027917 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00027872/bg-8-165-2011.pdf https://bg.copernicus.org/articles/8/165/2011/bg-8-165-2011.pdf |
geographic |
Bering Sea Pacific |
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Bering Sea Pacific |
genre |
aleutian low Bering Sea |
genre_facet |
aleutian low Bering Sea |
op_relation |
Biogeosciences -- http://www.bibliothek.uni-regensburg.de/ezeit/?2158181 -- http://www.copernicus.org/EGU/bg/bg.html -- 1726-4189 https://doi.org/10.5194/bg-8-165-2011 https://noa.gwlb.de/receive/cop_mods_00027917 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00027872/bg-8-165-2011.pdf https://bg.copernicus.org/articles/8/165/2011/bg-8-165-2011.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/bg-8-165-2011 |
container_title |
Biogeosciences |
container_volume |
8 |
container_issue |
1 |
container_start_page |
165 |
op_container_end_page |
174 |
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