Response of the Intertropical Convergence Zone to Antarctic Ice Sheet melt
Past cooling events in the Northern Hemisphere have been shown to impact the location of the intertropical convergence zone (ITCZ) and therewith induce a southward shift of tropical precipitation. Here we use high‐resolution coupled ocean‐atmosphere simulations to show that reasonable past melt rate...
Published in: | Geophysical Research Letters |
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Language: | English |
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Online Access: | https://oceanrep.geomar.de/id/eprint/44046/ https://oceanrep.geomar.de/id/eprint/44046/2/2018gl078659-sup-0001-text_si-s01_aa.pdf https://oceanrep.geomar.de/id/eprint/44046/13/Bakker.pdf https://doi.org/10.1029/2018GL078659 |
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ftoceanrep:oai:oceanrep.geomar.de:44046 2023-05-15T14:02:02+02:00 Response of the Intertropical Convergence Zone to Antarctic Ice Sheet melt Bakker, P. Prange, M. 2018-08-03 text https://oceanrep.geomar.de/id/eprint/44046/ https://oceanrep.geomar.de/id/eprint/44046/2/2018gl078659-sup-0001-text_si-s01_aa.pdf https://oceanrep.geomar.de/id/eprint/44046/13/Bakker.pdf https://doi.org/10.1029/2018GL078659 en eng AGU (American Geophysical Union) Wiley https://oceanrep.geomar.de/id/eprint/44046/2/2018gl078659-sup-0001-text_si-s01_aa.pdf https://oceanrep.geomar.de/id/eprint/44046/13/Bakker.pdf Bakker, P. and Prange, M. (2018) Response of the Intertropical Convergence Zone to Antarctic Ice Sheet melt. Geophysical Research Letters, 45 (16). pp. 8673-8680. DOI 10.1029/2018GL078659 <https://doi.org/10.1029/2018GL078659>. doi:10.1029/2018GL078659 info:eu-repo/semantics/restrictedAccess Article PeerReviewed 2018 ftoceanrep https://doi.org/10.1029/2018GL078659 2023-04-07T15:41:01Z Past cooling events in the Northern Hemisphere have been shown to impact the location of the intertropical convergence zone (ITCZ) and therewith induce a southward shift of tropical precipitation. Here we use high‐resolution coupled ocean‐atmosphere simulations to show that reasonable past melt rates of the Antarctic Ice Sheet can similarly have led to shifts of the ITCZ, albeit in opposite direction, through large‐scale surface air temperature changes over the Southern Ocean. Through sensitivity experiments employing slightly negative to large positive meltwater fluxes we deduce that meridional shifts of the Hadley cell and therewith the ITCZ are, to a first order, a linear response to Southern Hemisphere high‐latitude surface air temperature changes and Antarctic Ice Sheet melt rates. This highlights the possibility to use past episodes of anomalous melt rates to better constrain a possible future response of low latitude precipitation to continued global warming and a shrinking Antarctic Ice Sheet. Article in Journal/Newspaper Antarc* Antarctic Ice Sheet Southern Ocean OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Antarctic Southern Ocean The Antarctic Geophysical Research Letters 45 16 8673 8680 |
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Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
language |
English |
description |
Past cooling events in the Northern Hemisphere have been shown to impact the location of the intertropical convergence zone (ITCZ) and therewith induce a southward shift of tropical precipitation. Here we use high‐resolution coupled ocean‐atmosphere simulations to show that reasonable past melt rates of the Antarctic Ice Sheet can similarly have led to shifts of the ITCZ, albeit in opposite direction, through large‐scale surface air temperature changes over the Southern Ocean. Through sensitivity experiments employing slightly negative to large positive meltwater fluxes we deduce that meridional shifts of the Hadley cell and therewith the ITCZ are, to a first order, a linear response to Southern Hemisphere high‐latitude surface air temperature changes and Antarctic Ice Sheet melt rates. This highlights the possibility to use past episodes of anomalous melt rates to better constrain a possible future response of low latitude precipitation to continued global warming and a shrinking Antarctic Ice Sheet. |
format |
Article in Journal/Newspaper |
author |
Bakker, P. Prange, M. |
spellingShingle |
Bakker, P. Prange, M. Response of the Intertropical Convergence Zone to Antarctic Ice Sheet melt |
author_facet |
Bakker, P. Prange, M. |
author_sort |
Bakker, P. |
title |
Response of the Intertropical Convergence Zone to Antarctic Ice Sheet melt |
title_short |
Response of the Intertropical Convergence Zone to Antarctic Ice Sheet melt |
title_full |
Response of the Intertropical Convergence Zone to Antarctic Ice Sheet melt |
title_fullStr |
Response of the Intertropical Convergence Zone to Antarctic Ice Sheet melt |
title_full_unstemmed |
Response of the Intertropical Convergence Zone to Antarctic Ice Sheet melt |
title_sort |
response of the intertropical convergence zone to antarctic ice sheet melt |
publisher |
AGU (American Geophysical Union) |
publishDate |
2018 |
url |
https://oceanrep.geomar.de/id/eprint/44046/ https://oceanrep.geomar.de/id/eprint/44046/2/2018gl078659-sup-0001-text_si-s01_aa.pdf https://oceanrep.geomar.de/id/eprint/44046/13/Bakker.pdf https://doi.org/10.1029/2018GL078659 |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Ice Sheet Southern Ocean |
genre_facet |
Antarc* Antarctic Ice Sheet Southern Ocean |
op_relation |
https://oceanrep.geomar.de/id/eprint/44046/2/2018gl078659-sup-0001-text_si-s01_aa.pdf https://oceanrep.geomar.de/id/eprint/44046/13/Bakker.pdf Bakker, P. and Prange, M. (2018) Response of the Intertropical Convergence Zone to Antarctic Ice Sheet melt. Geophysical Research Letters, 45 (16). pp. 8673-8680. DOI 10.1029/2018GL078659 <https://doi.org/10.1029/2018GL078659>. doi:10.1029/2018GL078659 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1029/2018GL078659 |
container_title |
Geophysical Research Letters |
container_volume |
45 |
container_issue |
16 |
container_start_page |
8673 |
op_container_end_page |
8680 |
_version_ |
1766272096762068992 |