On timescales and reversibility of the ocean's response to enhanced Greenland Ice Sheet melting in comprehensive climate models

Warming of the North Atlantic region in climate history often was associated with massive melting of the Greenland Ice Sheet. To identify the meltwater's impacts and isolate these from internal variability and other global warming factors, we run single-forcing simulations including small ensem...

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Published in:Geophysical Research Letters
Main Authors: Martin, Torge, Biastoch, Arne, Lohmann, Gerrit, Mikolajewicz, Uwe, Wang, Xuezhu
Format: Article in Journal/Newspaper
Language:English
Published: 2022
Subjects:
Online Access:https://doi.org/10.1029/2021GL097114
https://nbn-resolving.org/urn:nbn:de:gbv:8:3-2022-00566-0
https://macau.uni-kiel.de/receive/macau_mods_00002985
https://macau.uni-kiel.de/servlets/MCRFileNodeServlet/macau_derivate_00004134/timescales.pdf
id ftunivkiel:oai:macau.uni-kiel.de:macau_mods_00002985
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spelling ftunivkiel:oai:macau.uni-kiel.de:macau_mods_00002985 2024-06-23T07:53:14+00:00 On timescales and reversibility of the ocean's response to enhanced Greenland Ice Sheet melting in comprehensive climate models Martin, Torge Biastoch, Arne Lohmann, Gerrit Mikolajewicz, Uwe Wang, Xuezhu 2022 https://doi.org/10.1029/2021GL097114 https://nbn-resolving.org/urn:nbn:de:gbv:8:3-2022-00566-0 https://macau.uni-kiel.de/receive/macau_mods_00002985 https://macau.uni-kiel.de/servlets/MCRFileNodeServlet/macau_derivate_00004134/timescales.pdf eng eng Geophysical research letters : GRL / American Geophysical Union. Ed. Noel W. Hinners -- 0094-8276 -- 1944-8007 https://doi.org/10.1029/2021GL097114 https://nbn-resolving.org/urn:nbn:de:gbv:8:3-2022-00566-0 https://macau.uni-kiel.de/receive/macau_mods_00002985 https://macau.uni-kiel.de/servlets/MCRFileNodeServlet/macau_derivate_00004134/timescales.pdf https://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess article ScholarlyArticle ddc:333.7 Published Version Greenlang freshwater release deep Ocean dynamics article Text doc-type:Article 2022 ftunivkiel https://doi.org/10.1029/2021GL097114 2024-06-12T14:18:24Z Warming of the North Atlantic region in climate history often was associated with massive melting of the Greenland Ice Sheet. To identify the meltwater's impacts and isolate these from internal variability and other global warming factors, we run single-forcing simulations including small ensembles using three complex climate models differing only in their ocean components. In 200-year-long preindustrial climate simulations, we identify robust consequences of abruptly increasing Greenland runoff by 0.05 Sv: sea level rise of 44 ± 10 cm, subpolar North Atlantic surface cooling of 0.7°C, and a moderate AMOC decline of 1.1–2.0 Sv. The latter two emerge in under three decades—and reverse on the same timescale after the perturbation ends in year 100. The ocean translates the step-change perturbation into a multidecadal-to-centennial signature in the deep overturning circulation. In all simulations, internal variability creates notable uncertainty in estimating trends, time of emergence, and duration of the response. Article in Journal/Newspaper Greenland Ice Sheet North Atlantic MACAU: Open Access Repository of Kiel University Greenland Geophysical Research Letters 49 5
institution Open Polar
collection MACAU: Open Access Repository of Kiel University
op_collection_id ftunivkiel
language English
topic article
ScholarlyArticle
ddc:333.7
Published Version
Greenlang
freshwater release
deep Ocean dynamics
spellingShingle article
ScholarlyArticle
ddc:333.7
Published Version
Greenlang
freshwater release
deep Ocean dynamics
Martin, Torge
Biastoch, Arne
Lohmann, Gerrit
Mikolajewicz, Uwe
Wang, Xuezhu
On timescales and reversibility of the ocean's response to enhanced Greenland Ice Sheet melting in comprehensive climate models
topic_facet article
ScholarlyArticle
ddc:333.7
Published Version
Greenlang
freshwater release
deep Ocean dynamics
description Warming of the North Atlantic region in climate history often was associated with massive melting of the Greenland Ice Sheet. To identify the meltwater's impacts and isolate these from internal variability and other global warming factors, we run single-forcing simulations including small ensembles using three complex climate models differing only in their ocean components. In 200-year-long preindustrial climate simulations, we identify robust consequences of abruptly increasing Greenland runoff by 0.05 Sv: sea level rise of 44 ± 10 cm, subpolar North Atlantic surface cooling of 0.7°C, and a moderate AMOC decline of 1.1–2.0 Sv. The latter two emerge in under three decades—and reverse on the same timescale after the perturbation ends in year 100. The ocean translates the step-change perturbation into a multidecadal-to-centennial signature in the deep overturning circulation. In all simulations, internal variability creates notable uncertainty in estimating trends, time of emergence, and duration of the response.
format Article in Journal/Newspaper
author Martin, Torge
Biastoch, Arne
Lohmann, Gerrit
Mikolajewicz, Uwe
Wang, Xuezhu
author_facet Martin, Torge
Biastoch, Arne
Lohmann, Gerrit
Mikolajewicz, Uwe
Wang, Xuezhu
author_sort Martin, Torge
title On timescales and reversibility of the ocean's response to enhanced Greenland Ice Sheet melting in comprehensive climate models
title_short On timescales and reversibility of the ocean's response to enhanced Greenland Ice Sheet melting in comprehensive climate models
title_full On timescales and reversibility of the ocean's response to enhanced Greenland Ice Sheet melting in comprehensive climate models
title_fullStr On timescales and reversibility of the ocean's response to enhanced Greenland Ice Sheet melting in comprehensive climate models
title_full_unstemmed On timescales and reversibility of the ocean's response to enhanced Greenland Ice Sheet melting in comprehensive climate models
title_sort on timescales and reversibility of the ocean's response to enhanced greenland ice sheet melting in comprehensive climate models
publishDate 2022
url https://doi.org/10.1029/2021GL097114
https://nbn-resolving.org/urn:nbn:de:gbv:8:3-2022-00566-0
https://macau.uni-kiel.de/receive/macau_mods_00002985
https://macau.uni-kiel.de/servlets/MCRFileNodeServlet/macau_derivate_00004134/timescales.pdf
geographic Greenland
geographic_facet Greenland
genre Greenland
Ice Sheet
North Atlantic
genre_facet Greenland
Ice Sheet
North Atlantic
op_relation Geophysical research letters : GRL / American Geophysical Union. Ed. Noel W. Hinners -- 0094-8276 -- 1944-8007
https://doi.org/10.1029/2021GL097114
https://nbn-resolving.org/urn:nbn:de:gbv:8:3-2022-00566-0
https://macau.uni-kiel.de/receive/macau_mods_00002985
https://macau.uni-kiel.de/servlets/MCRFileNodeServlet/macau_derivate_00004134/timescales.pdf
op_rights https://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
op_doi https://doi.org/10.1029/2021GL097114
container_title Geophysical Research Letters
container_volume 49
container_issue 5
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