Stable oxygen isotope record of benthic foraminifera from the tropical Atlantic, supplement to: Rühlemann, Carsten; Mulitza, Stefan; Lohmann, Gerrit; Paul, André; Prange, Matthias; Wefer, Gerold (2004): Intermediate depth warming in the tropical Atlantic related to weakened thermohaline circulation: Combining paleoclimate and modeling data for the last deglaciation. Paleoceanography, 19(1), PA1025
Benthic foraminiferal oxygen isotope ratios from two sediment cores recovered at 426 and 1299 m water depth in the eastern and western tropical Atlantic show that a slowdown of the thermohaline circulation (THC) during Heinrich event H1 and the Younger Dryas was accompanied by rapid and intense warm...
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ftdatacite:10.1594/pangaea.737914 2023-05-15T17:35:20+02:00 Stable oxygen isotope record of benthic foraminifera from the tropical Atlantic, supplement to: Rühlemann, Carsten; Mulitza, Stefan; Lohmann, Gerrit; Paul, André; Prange, Matthias; Wefer, Gerold (2004): Intermediate depth warming in the tropical Atlantic related to weakened thermohaline circulation: Combining paleoclimate and modeling data for the last deglaciation. Paleoceanography, 19(1), PA1025 Rühlemann, Carsten Mulitza, Stefan Lohmann, Gerrit Paul, André Prange, Matthias Wefer, Gerold 2004 application/zip https://dx.doi.org/10.1594/pangaea.737914 https://doi.pangaea.de/10.1594/PANGAEA.737914 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1029/2003pa000948 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Drilling/drill rig Gravity corer Kiel type Leg175 M35/1 Joides Resolution Meteor 1986 Center for Marine Environmental Sciences MARUM Supplementary Collection of Datasets Collection article 2004 ftdatacite https://doi.org/10.1594/pangaea.737914 https://doi.org/10.1029/2003pa000948 2022-02-08T16:24:46Z Benthic foraminiferal oxygen isotope ratios from two sediment cores recovered at 426 and 1299 m water depth in the eastern and western tropical Atlantic show that a slowdown of the thermohaline circulation (THC) during Heinrich event H1 and the Younger Dryas was accompanied by rapid and intense warming of intermediate depth waters. Millennial-scale covariations of low paleosalinities in the subpolar North Atlantic with decreased benthic oxygen isotope ratios in the eastern tropical Atlantic throughout the past 10,000 years suggest that THC weakening might be related to middepth warming during the Holocene period as well. Climate model experiments simulating a strong reduction of the THC in the Atlantic Ocean under present-day and glacial conditions reveal that the increase of temperature in the middepth tropical and South Atlantic is a common feature for both climatic states, caused by a reduced ventilation of cold intermediate and deep waters in conjunction with downward mixing of heat from the thermocline. From the similarity of the paleoclimatic records with the model simulations, we infer that the characteristic pattern of temperature change in the Atlantic Ocean related to weakened thermohaline circulation can serve as an indicator of present-day and future THC slowdown. : For age determination of ODP Hole 175-1078C see Kim et al. (2003) dataset: doi:10.1594/PANGAEA.143653 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 |
Drilling/drill rig Gravity corer Kiel type Leg175 M35/1 Joides Resolution Meteor 1986 Center for Marine Environmental Sciences MARUM |
spellingShingle |
Drilling/drill rig Gravity corer Kiel type Leg175 M35/1 Joides Resolution Meteor 1986 Center for Marine Environmental Sciences MARUM Rühlemann, Carsten Mulitza, Stefan Lohmann, Gerrit Paul, André Prange, Matthias Wefer, Gerold Stable oxygen isotope record of benthic foraminifera from the tropical Atlantic, supplement to: Rühlemann, Carsten; Mulitza, Stefan; Lohmann, Gerrit; Paul, André; Prange, Matthias; Wefer, Gerold (2004): Intermediate depth warming in the tropical Atlantic related to weakened thermohaline circulation: Combining paleoclimate and modeling data for the last deglaciation. Paleoceanography, 19(1), PA1025 |
topic_facet |
Drilling/drill rig Gravity corer Kiel type Leg175 M35/1 Joides Resolution Meteor 1986 Center for Marine Environmental Sciences MARUM |
description |
Benthic foraminiferal oxygen isotope ratios from two sediment cores recovered at 426 and 1299 m water depth in the eastern and western tropical Atlantic show that a slowdown of the thermohaline circulation (THC) during Heinrich event H1 and the Younger Dryas was accompanied by rapid and intense warming of intermediate depth waters. Millennial-scale covariations of low paleosalinities in the subpolar North Atlantic with decreased benthic oxygen isotope ratios in the eastern tropical Atlantic throughout the past 10,000 years suggest that THC weakening might be related to middepth warming during the Holocene period as well. Climate model experiments simulating a strong reduction of the THC in the Atlantic Ocean under present-day and glacial conditions reveal that the increase of temperature in the middepth tropical and South Atlantic is a common feature for both climatic states, caused by a reduced ventilation of cold intermediate and deep waters in conjunction with downward mixing of heat from the thermocline. From the similarity of the paleoclimatic records with the model simulations, we infer that the characteristic pattern of temperature change in the Atlantic Ocean related to weakened thermohaline circulation can serve as an indicator of present-day and future THC slowdown. : For age determination of ODP Hole 175-1078C see Kim et al. (2003) dataset: doi:10.1594/PANGAEA.143653 |
format |
Article in Journal/Newspaper |
author |
Rühlemann, Carsten Mulitza, Stefan Lohmann, Gerrit Paul, André Prange, Matthias Wefer, Gerold |
author_facet |
Rühlemann, Carsten Mulitza, Stefan Lohmann, Gerrit Paul, André Prange, Matthias Wefer, Gerold |
author_sort |
Rühlemann, Carsten |
title |
Stable oxygen isotope record of benthic foraminifera from the tropical Atlantic, supplement to: Rühlemann, Carsten; Mulitza, Stefan; Lohmann, Gerrit; Paul, André; Prange, Matthias; Wefer, Gerold (2004): Intermediate depth warming in the tropical Atlantic related to weakened thermohaline circulation: Combining paleoclimate and modeling data for the last deglaciation. Paleoceanography, 19(1), PA1025 |
title_short |
Stable oxygen isotope record of benthic foraminifera from the tropical Atlantic, supplement to: Rühlemann, Carsten; Mulitza, Stefan; Lohmann, Gerrit; Paul, André; Prange, Matthias; Wefer, Gerold (2004): Intermediate depth warming in the tropical Atlantic related to weakened thermohaline circulation: Combining paleoclimate and modeling data for the last deglaciation. Paleoceanography, 19(1), PA1025 |
title_full |
Stable oxygen isotope record of benthic foraminifera from the tropical Atlantic, supplement to: Rühlemann, Carsten; Mulitza, Stefan; Lohmann, Gerrit; Paul, André; Prange, Matthias; Wefer, Gerold (2004): Intermediate depth warming in the tropical Atlantic related to weakened thermohaline circulation: Combining paleoclimate and modeling data for the last deglaciation. Paleoceanography, 19(1), PA1025 |
title_fullStr |
Stable oxygen isotope record of benthic foraminifera from the tropical Atlantic, supplement to: Rühlemann, Carsten; Mulitza, Stefan; Lohmann, Gerrit; Paul, André; Prange, Matthias; Wefer, Gerold (2004): Intermediate depth warming in the tropical Atlantic related to weakened thermohaline circulation: Combining paleoclimate and modeling data for the last deglaciation. Paleoceanography, 19(1), PA1025 |
title_full_unstemmed |
Stable oxygen isotope record of benthic foraminifera from the tropical Atlantic, supplement to: Rühlemann, Carsten; Mulitza, Stefan; Lohmann, Gerrit; Paul, André; Prange, Matthias; Wefer, Gerold (2004): Intermediate depth warming in the tropical Atlantic related to weakened thermohaline circulation: Combining paleoclimate and modeling data for the last deglaciation. Paleoceanography, 19(1), PA1025 |
title_sort |
stable oxygen isotope record of benthic foraminifera from the tropical atlantic, supplement to: rühlemann, carsten; mulitza, stefan; lohmann, gerrit; paul, andré; prange, matthias; wefer, gerold (2004): intermediate depth warming in the tropical atlantic related to weakened thermohaline circulation: combining paleoclimate and modeling data for the last deglaciation. paleoceanography, 19(1), pa1025 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2004 |
url |
https://dx.doi.org/10.1594/pangaea.737914 https://doi.pangaea.de/10.1594/PANGAEA.737914 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://dx.doi.org/10.1029/2003pa000948 |
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.737914 https://doi.org/10.1029/2003pa000948 |
_version_ |
1766134474865639424 |