AMOC recovery in a multi-centennial scenario using a coupled atmosphere-ocean-ice sheet model
We simulate the two Coupled Model Intercomparison Project scenarios RCP4.5 and RCP8.5, to assess the effects of melt‐induced fresh water on the Atlantic meridional overturning circulation (AMOC). We use a newly developed climate model with high resolution at the coasts, resolving the complex ocean d...
Published in: | Geophysical Research Letters |
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Online Access: | https://epic.awi.de/id/eprint/52899/ https://epic.awi.de/id/eprint/52899/1/2019GL086810.pdf https://epic.awi.de/id/eprint/52899/2/grl61025-sup-0001-text_si-s01.pdf https://hdl.handle.net/10013/epic.a330f937-84c0-406d-af1e-2100fc605bd9 https://hdl.handle.net/ |
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ftawi:oai:epic.awi.de:52899 2023-05-15T16:40:05+02:00 AMOC recovery in a multi-centennial scenario using a coupled atmosphere-ocean-ice sheet model Ackermann, Lars Danek, Christopher Gierz, Paul Lohmann, Gerrit 2020-08 application/pdf https://epic.awi.de/id/eprint/52899/ https://epic.awi.de/id/eprint/52899/1/2019GL086810.pdf https://epic.awi.de/id/eprint/52899/2/grl61025-sup-0001-text_si-s01.pdf https://hdl.handle.net/10013/epic.a330f937-84c0-406d-af1e-2100fc605bd9 https://hdl.handle.net/ unknown Wiley https://epic.awi.de/id/eprint/52899/1/2019GL086810.pdf https://hdl.handle.net/ https://epic.awi.de/id/eprint/52899/2/grl61025-sup-0001-text_si-s01.pdf Ackermann, L. orcid:0000-0001-6643-0714 , Danek, C. orcid:0000-0002-4453-1140 , Gierz, P. orcid:0000-0002-4512-087X and Lohmann, G. orcid:0000-0003-2089-733X (2020) AMOC recovery in a multi-centennial scenario using a coupled atmosphere-ocean-ice sheet model , Geophysical Research Letters, 47 (16), e2019GL086810 . doi:10.1029/2019GL086810 <https://doi.org/10.1029/2019GL086810> , hdl:10013/epic.a330f937-84c0-406d-af1e-2100fc605bd9 EPIC3Geophysical Research Letters, Wiley, 47(16), pp. e2019GL086810, ISSN: 0094-8276 Article isiRev 2020 ftawi https://doi.org/10.1029/2019GL086810 2021-12-24T15:45:53Z We simulate the two Coupled Model Intercomparison Project scenarios RCP4.5 and RCP8.5, to assess the effects of melt‐induced fresh water on the Atlantic meridional overturning circulation (AMOC). We use a newly developed climate model with high resolution at the coasts, resolving the complex ocean dynamics. Our results show an AMOC recovery in simulations run with and without an included ice sheet model. We find that the ice sheet adds a strong decadal variability on the freshwater release, resulting in intervals in which it reduces the surface runoff by high accumulation rates. This compensating effect is missing in climate models without dynamic ice sheets. Therefore, we argue to assess those freshwater hosing experiments critically, which aim to parameterize Greenland's freshwater release. We assume the increasing net evaporation over the Atlantic and the resulting increase in ocean salinity, to be the main driver of the AMOC recovery. Article in Journal/Newspaper Ice Sheet Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Geophysical Research Letters 47 16 |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
We simulate the two Coupled Model Intercomparison Project scenarios RCP4.5 and RCP8.5, to assess the effects of melt‐induced fresh water on the Atlantic meridional overturning circulation (AMOC). We use a newly developed climate model with high resolution at the coasts, resolving the complex ocean dynamics. Our results show an AMOC recovery in simulations run with and without an included ice sheet model. We find that the ice sheet adds a strong decadal variability on the freshwater release, resulting in intervals in which it reduces the surface runoff by high accumulation rates. This compensating effect is missing in climate models without dynamic ice sheets. Therefore, we argue to assess those freshwater hosing experiments critically, which aim to parameterize Greenland's freshwater release. We assume the increasing net evaporation over the Atlantic and the resulting increase in ocean salinity, to be the main driver of the AMOC recovery. |
format |
Article in Journal/Newspaper |
author |
Ackermann, Lars Danek, Christopher Gierz, Paul Lohmann, Gerrit |
spellingShingle |
Ackermann, Lars Danek, Christopher Gierz, Paul Lohmann, Gerrit AMOC recovery in a multi-centennial scenario using a coupled atmosphere-ocean-ice sheet model |
author_facet |
Ackermann, Lars Danek, Christopher Gierz, Paul Lohmann, Gerrit |
author_sort |
Ackermann, Lars |
title |
AMOC recovery in a multi-centennial scenario using a coupled atmosphere-ocean-ice sheet model |
title_short |
AMOC recovery in a multi-centennial scenario using a coupled atmosphere-ocean-ice sheet model |
title_full |
AMOC recovery in a multi-centennial scenario using a coupled atmosphere-ocean-ice sheet model |
title_fullStr |
AMOC recovery in a multi-centennial scenario using a coupled atmosphere-ocean-ice sheet model |
title_full_unstemmed |
AMOC recovery in a multi-centennial scenario using a coupled atmosphere-ocean-ice sheet model |
title_sort |
amoc recovery in a multi-centennial scenario using a coupled atmosphere-ocean-ice sheet model |
publisher |
Wiley |
publishDate |
2020 |
url |
https://epic.awi.de/id/eprint/52899/ https://epic.awi.de/id/eprint/52899/1/2019GL086810.pdf https://epic.awi.de/id/eprint/52899/2/grl61025-sup-0001-text_si-s01.pdf https://hdl.handle.net/10013/epic.a330f937-84c0-406d-af1e-2100fc605bd9 https://hdl.handle.net/ |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
EPIC3Geophysical Research Letters, Wiley, 47(16), pp. e2019GL086810, ISSN: 0094-8276 |
op_relation |
https://epic.awi.de/id/eprint/52899/1/2019GL086810.pdf https://hdl.handle.net/ https://epic.awi.de/id/eprint/52899/2/grl61025-sup-0001-text_si-s01.pdf Ackermann, L. orcid:0000-0001-6643-0714 , Danek, C. orcid:0000-0002-4453-1140 , Gierz, P. orcid:0000-0002-4512-087X and Lohmann, G. orcid:0000-0003-2089-733X (2020) AMOC recovery in a multi-centennial scenario using a coupled atmosphere-ocean-ice sheet model , Geophysical Research Letters, 47 (16), e2019GL086810 . doi:10.1029/2019GL086810 <https://doi.org/10.1029/2019GL086810> , hdl:10013/epic.a330f937-84c0-406d-af1e-2100fc605bd9 |
op_doi |
https://doi.org/10.1029/2019GL086810 |
container_title |
Geophysical Research Letters |
container_volume |
47 |
container_issue |
16 |
_version_ |
1766030452381974528 |