Spatial fingerprint and magnitude of changes in the Atlantic meridional overturning circulation during marine isotope stage 3
Pronounced millennial-scale climate variability during marine isotope stage 3 (MIS3) is considered to be linked to changes in the state of the Atlantic meridional overturning circulation (AMOC), i.e., a warm interstadial/cold stadial state corresponds to a strong/weak AMOC. Based on a series of fres...
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ftarchimer:oai:archimer.ifremer.fr:46267 2023-05-15T16:00:02+02:00 Spatial fingerprint and magnitude of changes in the Atlantic meridional overturning circulation during marine isotope stage 3 Zhang, Xiao Prange, Matthias Merkel, Ute Schulz, Michael 2015-03 application/pdf https://archimer.ifremer.fr/doc/00351/46267/46052.pdf https://doi.org/10.1002/2014GL063003 https://archimer.ifremer.fr/doc/00351/46267/ eng eng Amer Geophysical Union https://archimer.ifremer.fr/doc/00351/46267/46052.pdf doi:10.1002/2014GL063003 https://archimer.ifremer.fr/doc/00351/46267/ 2015. American Geophysical Union. All Rights Reserved. info:eu-repo/semantics/openAccess restricted use Geophysical Research Letters (0094-8276) (Amer Geophysical Union), 2015-03 , Vol. 42 , N. 6 , P. 1903-1911 Atlantic meridional overturning circulation Dansgaard-Oeschger events global climate modeling text Publication info:eu-repo/semantics/article 2015 ftarchimer https://doi.org/10.1002/2014GL063003 2021-09-23T20:28:47Z Pronounced millennial-scale climate variability during marine isotope stage 3 (MIS3) is considered to be linked to changes in the state of the Atlantic meridional overturning circulation (AMOC), i.e., a warm interstadial/cold stadial state corresponds to a strong/weak AMOC. Based on a series of freshwater hosing/extraction experiments with the state-of-the-art Community Climate System Model version 3, we construct a global spatial fingerprint of oceanic temperature anomalies in response to AMOC changes under MIS3 boundary conditions. Highest sensitivity to AMOC changes, especially in summer, is found in northeastern North Atlantic sea surface temperature, but a characteristic temperature fingerprint is also found at subsurface levels. After testing significance of the linear sea surface temperature (SST)-AMOC regressions, the model results are combined with paleo-SST records to estimate the magnitude of millennial-scale Dansgaard-Oeschger AMOC variations during MIS3. The results suggest a mean difference in AMOC strength between interstadial and (non-Heinrich) stadial states of 9.21.2Sv (1 sigma). Article in Journal/Newspaper Dansgaard-Oeschger events North Atlantic Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Geophysical Research Letters 42 6 1903 1911 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
Atlantic meridional overturning circulation Dansgaard-Oeschger events global climate modeling |
spellingShingle |
Atlantic meridional overturning circulation Dansgaard-Oeschger events global climate modeling Zhang, Xiao Prange, Matthias Merkel, Ute Schulz, Michael Spatial fingerprint and magnitude of changes in the Atlantic meridional overturning circulation during marine isotope stage 3 |
topic_facet |
Atlantic meridional overturning circulation Dansgaard-Oeschger events global climate modeling |
description |
Pronounced millennial-scale climate variability during marine isotope stage 3 (MIS3) is considered to be linked to changes in the state of the Atlantic meridional overturning circulation (AMOC), i.e., a warm interstadial/cold stadial state corresponds to a strong/weak AMOC. Based on a series of freshwater hosing/extraction experiments with the state-of-the-art Community Climate System Model version 3, we construct a global spatial fingerprint of oceanic temperature anomalies in response to AMOC changes under MIS3 boundary conditions. Highest sensitivity to AMOC changes, especially in summer, is found in northeastern North Atlantic sea surface temperature, but a characteristic temperature fingerprint is also found at subsurface levels. After testing significance of the linear sea surface temperature (SST)-AMOC regressions, the model results are combined with paleo-SST records to estimate the magnitude of millennial-scale Dansgaard-Oeschger AMOC variations during MIS3. The results suggest a mean difference in AMOC strength between interstadial and (non-Heinrich) stadial states of 9.21.2Sv (1 sigma). |
format |
Article in Journal/Newspaper |
author |
Zhang, Xiao Prange, Matthias Merkel, Ute Schulz, Michael |
author_facet |
Zhang, Xiao Prange, Matthias Merkel, Ute Schulz, Michael |
author_sort |
Zhang, Xiao |
title |
Spatial fingerprint and magnitude of changes in the Atlantic meridional overturning circulation during marine isotope stage 3 |
title_short |
Spatial fingerprint and magnitude of changes in the Atlantic meridional overturning circulation during marine isotope stage 3 |
title_full |
Spatial fingerprint and magnitude of changes in the Atlantic meridional overturning circulation during marine isotope stage 3 |
title_fullStr |
Spatial fingerprint and magnitude of changes in the Atlantic meridional overturning circulation during marine isotope stage 3 |
title_full_unstemmed |
Spatial fingerprint and magnitude of changes in the Atlantic meridional overturning circulation during marine isotope stage 3 |
title_sort |
spatial fingerprint and magnitude of changes in the atlantic meridional overturning circulation during marine isotope stage 3 |
publisher |
Amer Geophysical Union |
publishDate |
2015 |
url |
https://archimer.ifremer.fr/doc/00351/46267/46052.pdf https://doi.org/10.1002/2014GL063003 https://archimer.ifremer.fr/doc/00351/46267/ |
genre |
Dansgaard-Oeschger events North Atlantic |
genre_facet |
Dansgaard-Oeschger events North Atlantic |
op_source |
Geophysical Research Letters (0094-8276) (Amer Geophysical Union), 2015-03 , Vol. 42 , N. 6 , P. 1903-1911 |
op_relation |
https://archimer.ifremer.fr/doc/00351/46267/46052.pdf doi:10.1002/2014GL063003 https://archimer.ifremer.fr/doc/00351/46267/ |
op_rights |
2015. American Geophysical Union. All Rights Reserved. info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1002/2014GL063003 |
container_title |
Geophysical Research Letters |
container_volume |
42 |
container_issue |
6 |
container_start_page |
1903 |
op_container_end_page |
1911 |
_version_ |
1766395909882511360 |