Sea surface temperature reconstruction based on alkenones of sediment core M35003-4, supplement to: Rühlemann, Carsten; Mulitza, Stefan; Müller, Peter J; Wefer, Gerold; Zahn, Rainer (1999): Warming of the tropical Atlantic Ocean and slowdown of thermohaline circulation during the last deglaciation. Nature, 402(6761), 511-514
Evidence for abrupt climate changes on millennial and shorter timescales is widespread in marine and terrestrial climate records (Dansgard et al., 1993, doi:10.1038/364218a0; Bond et al., 1993, doi:10.1038/365143a0; Charles et al., 1996, doi:10.1016/0012-821X(96)00083-0, Bard et al., 1997, doi:10.10...
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ftdatacite:10.1594/pangaea.734784 2023-05-15T17:29:15+02:00 Sea surface temperature reconstruction based on alkenones of sediment core M35003-4, supplement to: Rühlemann, Carsten; Mulitza, Stefan; Müller, Peter J; Wefer, Gerold; Zahn, Rainer (1999): Warming of the tropical Atlantic Ocean and slowdown of thermohaline circulation during the last deglaciation. Nature, 402(6761), 511-514 Rühlemann, Carsten Mulitza, Stefan Müller, Peter J Wefer, Gerold Zahn, Rainer 1999 application/zip https://dx.doi.org/10.1594/pangaea.734784 https://doi.pangaea.de/10.1594/PANGAEA.734784 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1038/990069 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Gravity corer Kiel type M35/1 Meteor 1986 Collection article Supplementary Collection of Datasets 1999 ftdatacite https://doi.org/10.1594/pangaea.734784 https://doi.org/10.1038/990069 2021-11-05T12:55:41Z Evidence for abrupt climate changes on millennial and shorter timescales is widespread in marine and terrestrial climate records (Dansgard et al., 1993, doi:10.1038/364218a0; Bond et al., 1993, doi:10.1038/365143a0; Charles et al., 1996, doi:10.1016/0012-821X(96)00083-0, Bard et al., 1997, doi:10.1038/385707a0). Rapid reorganization of ocean circulation is considered to exert some control over these changes (Broecker et al., 1985, doi:10.1038/315021a0), as are shifts in the concentrations of atmospheric greenhouse gases (Broecker, 1994, doi:10.1038/372421a0). The response of the climate system to these two influences is fundamentally different: slowing of thermohaline overturn in the North Atlantic Ocean is expected to decrease northward heat transport by the ocean and to induce warming of the tropical Atlantic (Crowley, 1992, doi:10.1029/92PA01058; Manabe and Stouffer, 1997, doi:10.1029/96PA03932), whereas atmospheric greenhouse forcing should cause roughly synchronous global temperature changes (Manabe et al., 1991, doi:10.1175/1520-0442(1991)004<0785:TROACO>2.0.CO;2). So these two mechanisms of climate change should be distinguishable by the timing of surface-water temperature variations relative to changes in deep-water circulation. Here we present a high-temporal-resolution record of sea surface temperatures from the western tropical North Atlantic Ocean which spans the past 29,000 years, derived from measurements of temperature-sensitive alkenone unsaturation in sedimentary organic matter. We find significant warming is documented for Heinrich event H1 (16,900-15,400 calendar years bp) and the Younger Dryas event (12,900-11,600 cal. yr bp), which were periods of intense cooling in the northern North Atlantic. Temperature changes in the tropical and high-latitude North Atlantic are out of phase, suggesting that the thermohaline circulation was the important trigger for these rapid climate changes. Article in Journal/Newspaper North Atlantic DataCite Metadata Store (German National Library of Science and Technology) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Gravity corer Kiel type M35/1 Meteor 1986 |
spellingShingle |
Gravity corer Kiel type M35/1 Meteor 1986 Rühlemann, Carsten Mulitza, Stefan Müller, Peter J Wefer, Gerold Zahn, Rainer Sea surface temperature reconstruction based on alkenones of sediment core M35003-4, supplement to: Rühlemann, Carsten; Mulitza, Stefan; Müller, Peter J; Wefer, Gerold; Zahn, Rainer (1999): Warming of the tropical Atlantic Ocean and slowdown of thermohaline circulation during the last deglaciation. Nature, 402(6761), 511-514 |
topic_facet |
Gravity corer Kiel type M35/1 Meteor 1986 |
description |
Evidence for abrupt climate changes on millennial and shorter timescales is widespread in marine and terrestrial climate records (Dansgard et al., 1993, doi:10.1038/364218a0; Bond et al., 1993, doi:10.1038/365143a0; Charles et al., 1996, doi:10.1016/0012-821X(96)00083-0, Bard et al., 1997, doi:10.1038/385707a0). Rapid reorganization of ocean circulation is considered to exert some control over these changes (Broecker et al., 1985, doi:10.1038/315021a0), as are shifts in the concentrations of atmospheric greenhouse gases (Broecker, 1994, doi:10.1038/372421a0). The response of the climate system to these two influences is fundamentally different: slowing of thermohaline overturn in the North Atlantic Ocean is expected to decrease northward heat transport by the ocean and to induce warming of the tropical Atlantic (Crowley, 1992, doi:10.1029/92PA01058; Manabe and Stouffer, 1997, doi:10.1029/96PA03932), whereas atmospheric greenhouse forcing should cause roughly synchronous global temperature changes (Manabe et al., 1991, doi:10.1175/1520-0442(1991)004<0785:TROACO>2.0.CO;2). So these two mechanisms of climate change should be distinguishable by the timing of surface-water temperature variations relative to changes in deep-water circulation. Here we present a high-temporal-resolution record of sea surface temperatures from the western tropical North Atlantic Ocean which spans the past 29,000 years, derived from measurements of temperature-sensitive alkenone unsaturation in sedimentary organic matter. We find significant warming is documented for Heinrich event H1 (16,900-15,400 calendar years bp) and the Younger Dryas event (12,900-11,600 cal. yr bp), which were periods of intense cooling in the northern North Atlantic. Temperature changes in the tropical and high-latitude North Atlantic are out of phase, suggesting that the thermohaline circulation was the important trigger for these rapid climate changes. |
format |
Article in Journal/Newspaper |
author |
Rühlemann, Carsten Mulitza, Stefan Müller, Peter J Wefer, Gerold Zahn, Rainer |
author_facet |
Rühlemann, Carsten Mulitza, Stefan Müller, Peter J Wefer, Gerold Zahn, Rainer |
author_sort |
Rühlemann, Carsten |
title |
Sea surface temperature reconstruction based on alkenones of sediment core M35003-4, supplement to: Rühlemann, Carsten; Mulitza, Stefan; Müller, Peter J; Wefer, Gerold; Zahn, Rainer (1999): Warming of the tropical Atlantic Ocean and slowdown of thermohaline circulation during the last deglaciation. Nature, 402(6761), 511-514 |
title_short |
Sea surface temperature reconstruction based on alkenones of sediment core M35003-4, supplement to: Rühlemann, Carsten; Mulitza, Stefan; Müller, Peter J; Wefer, Gerold; Zahn, Rainer (1999): Warming of the tropical Atlantic Ocean and slowdown of thermohaline circulation during the last deglaciation. Nature, 402(6761), 511-514 |
title_full |
Sea surface temperature reconstruction based on alkenones of sediment core M35003-4, supplement to: Rühlemann, Carsten; Mulitza, Stefan; Müller, Peter J; Wefer, Gerold; Zahn, Rainer (1999): Warming of the tropical Atlantic Ocean and slowdown of thermohaline circulation during the last deglaciation. Nature, 402(6761), 511-514 |
title_fullStr |
Sea surface temperature reconstruction based on alkenones of sediment core M35003-4, supplement to: Rühlemann, Carsten; Mulitza, Stefan; Müller, Peter J; Wefer, Gerold; Zahn, Rainer (1999): Warming of the tropical Atlantic Ocean and slowdown of thermohaline circulation during the last deglaciation. Nature, 402(6761), 511-514 |
title_full_unstemmed |
Sea surface temperature reconstruction based on alkenones of sediment core M35003-4, supplement to: Rühlemann, Carsten; Mulitza, Stefan; Müller, Peter J; Wefer, Gerold; Zahn, Rainer (1999): Warming of the tropical Atlantic Ocean and slowdown of thermohaline circulation during the last deglaciation. Nature, 402(6761), 511-514 |
title_sort |
sea surface temperature reconstruction based on alkenones of sediment core m35003-4, supplement to: rühlemann, carsten; mulitza, stefan; müller, peter j; wefer, gerold; zahn, rainer (1999): warming of the tropical atlantic ocean and slowdown of thermohaline circulation during the last deglaciation. nature, 402(6761), 511-514 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
1999 |
url |
https://dx.doi.org/10.1594/pangaea.734784 https://doi.pangaea.de/10.1594/PANGAEA.734784 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://dx.doi.org/10.1038/990069 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.734784 https://doi.org/10.1038/990069 |
_version_ |
1766122909481304064 |