Quantifying changes in the global thermohaline circulation: A circum-Antarctic perspective
Summary The Circum-Antarctic Ocean plays a particularly important role in the present-day global ocean circulation system, connecting the three major ocean basins, and acting as the intermediary of global water-mass exchange. As the global “blender ” of water masses, changes in its tracer inventory...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.590.7714 2023-05-15T13:53:08+02:00 Quantifying changes in the global thermohaline circulation: A circum-Antarctic perspective S. L. Goldstein D. Zylberberg K. Pahnke S. R. Hemming T. Van De Flierdt The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.590.7714 http://pubs.usgs.gov/of/2007/1047/ea/of2007-1047ea209.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.590.7714 http://pubs.usgs.gov/of/2007/1047/ea/of2007-1047ea209.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://pubs.usgs.gov/of/2007/1047/ea/of2007-1047ea209.pdf text ftciteseerx 2016-01-08T13:30:48Z Summary The Circum-Antarctic Ocean plays a particularly important role in the present-day global ocean circulation system, connecting the three major ocean basins, and acting as the intermediary of global water-mass exchange. As the global “blender ” of water masses, changes in its tracer inventory through time reflect the vigor of the global thermohaline circulation (THC) system. Nd isotopes provide a unique potential to quantify present and past ocean circulation changes, as the only quasi-conservative paleocirculation tracer. We present the first Nd isotope record representing the Circum-Antarctic over the last 28 kyr. First order implications include shutdown of the THC during Heinrich Event 1 and during the early part of MIS 2, and a distinct but less intense weakening during the Younger Dryas, but increased THC vigor during the Last Glacial Maximum. Ongoing work with greater temporal resolution and on complementary records will allow quantification of THC intensity through time. Text Antarc* Antarctic Antarctic Ocean Unknown Antarctic Antarctic Ocean |
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Unknown |
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ftciteseerx |
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English |
description |
Summary The Circum-Antarctic Ocean plays a particularly important role in the present-day global ocean circulation system, connecting the three major ocean basins, and acting as the intermediary of global water-mass exchange. As the global “blender ” of water masses, changes in its tracer inventory through time reflect the vigor of the global thermohaline circulation (THC) system. Nd isotopes provide a unique potential to quantify present and past ocean circulation changes, as the only quasi-conservative paleocirculation tracer. We present the first Nd isotope record representing the Circum-Antarctic over the last 28 kyr. First order implications include shutdown of the THC during Heinrich Event 1 and during the early part of MIS 2, and a distinct but less intense weakening during the Younger Dryas, but increased THC vigor during the Last Glacial Maximum. Ongoing work with greater temporal resolution and on complementary records will allow quantification of THC intensity through time. |
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The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
S. L. Goldstein D. Zylberberg K. Pahnke S. R. Hemming T. Van De Flierdt |
spellingShingle |
S. L. Goldstein D. Zylberberg K. Pahnke S. R. Hemming T. Van De Flierdt Quantifying changes in the global thermohaline circulation: A circum-Antarctic perspective |
author_facet |
S. L. Goldstein D. Zylberberg K. Pahnke S. R. Hemming T. Van De Flierdt |
author_sort |
S. L. Goldstein |
title |
Quantifying changes in the global thermohaline circulation: A circum-Antarctic perspective |
title_short |
Quantifying changes in the global thermohaline circulation: A circum-Antarctic perspective |
title_full |
Quantifying changes in the global thermohaline circulation: A circum-Antarctic perspective |
title_fullStr |
Quantifying changes in the global thermohaline circulation: A circum-Antarctic perspective |
title_full_unstemmed |
Quantifying changes in the global thermohaline circulation: A circum-Antarctic perspective |
title_sort |
quantifying changes in the global thermohaline circulation: a circum-antarctic perspective |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.590.7714 http://pubs.usgs.gov/of/2007/1047/ea/of2007-1047ea209.pdf |
geographic |
Antarctic Antarctic Ocean |
geographic_facet |
Antarctic Antarctic Ocean |
genre |
Antarc* Antarctic Antarctic Ocean |
genre_facet |
Antarc* Antarctic Antarctic Ocean |
op_source |
http://pubs.usgs.gov/of/2007/1047/ea/of2007-1047ea209.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.590.7714 http://pubs.usgs.gov/of/2007/1047/ea/of2007-1047ea209.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766258089083797504 |