Global and Arctic climate sensitivity enhanced by changes in North Pacific heat flux ...
Arctic amplification is a consequence of surface albedo, cloud, and temperature feedbacks, as well as poleward oceanic and atmospheric heat transport. However, the relative impact of changes in sea surface temperature (SST) patterns and ocean heat flux sourced from different regions on Arctic temper...
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Online Access: | https://dx.doi.org/10.3929/ethz-b-000282814 http://hdl.handle.net/20.500.11850/282814 |
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ftdatacite:10.3929/ethz-b-000282814 2024-04-28T07:53:35+00:00 Global and Arctic climate sensitivity enhanced by changes in North Pacific heat flux ... Praetorius, Summer Rugenstein, Maria Persad, Geeta Caldeira, Ken 2018 application/pdf https://dx.doi.org/10.3929/ethz-b-000282814 http://hdl.handle.net/20.500.11850/282814 en eng ETH Zurich info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 article-journal Text ScholarlyArticle Journal Article 2018 ftdatacite https://doi.org/10.3929/ethz-b-000282814 2024-04-02T12:33:25Z Arctic amplification is a consequence of surface albedo, cloud, and temperature feedbacks, as well as poleward oceanic and atmospheric heat transport. However, the relative impact of changes in sea surface temperature (SST) patterns and ocean heat flux sourced from different regions on Arctic temperatures are not well constrained. We modify ocean-to-atmosphere heat fluxes in the North Pacific and North Atlantic in a climate model to determine the sensitivity of Arctic temperatures to zonal heterogeneities in northern hemisphere SST patterns. Both positive and negative ocean heat flux perturbations from the North Pacific result in greater global and Arctic surface air temperature anomalies than equivalent magnitude perturbations from the North Atlantic; a response we primarily attribute to greater moisture flux from the subpolar extratropics to Arctic. Enhanced poleward latent heat and moisture transport drive sea-ice retreat and low-cloud formation in the Arctic, amplifying Arctic surface warming through the ... : Nature Communications, 9 ... Article in Journal/Newspaper albedo Arctic North Atlantic Sea ice DataCite Metadata Store (German National Library of Science and Technology) |
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DataCite Metadata Store (German National Library of Science and Technology) |
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ftdatacite |
language |
English |
description |
Arctic amplification is a consequence of surface albedo, cloud, and temperature feedbacks, as well as poleward oceanic and atmospheric heat transport. However, the relative impact of changes in sea surface temperature (SST) patterns and ocean heat flux sourced from different regions on Arctic temperatures are not well constrained. We modify ocean-to-atmosphere heat fluxes in the North Pacific and North Atlantic in a climate model to determine the sensitivity of Arctic temperatures to zonal heterogeneities in northern hemisphere SST patterns. Both positive and negative ocean heat flux perturbations from the North Pacific result in greater global and Arctic surface air temperature anomalies than equivalent magnitude perturbations from the North Atlantic; a response we primarily attribute to greater moisture flux from the subpolar extratropics to Arctic. Enhanced poleward latent heat and moisture transport drive sea-ice retreat and low-cloud formation in the Arctic, amplifying Arctic surface warming through the ... : Nature Communications, 9 ... |
format |
Article in Journal/Newspaper |
author |
Praetorius, Summer Rugenstein, Maria Persad, Geeta Caldeira, Ken |
spellingShingle |
Praetorius, Summer Rugenstein, Maria Persad, Geeta Caldeira, Ken Global and Arctic climate sensitivity enhanced by changes in North Pacific heat flux ... |
author_facet |
Praetorius, Summer Rugenstein, Maria Persad, Geeta Caldeira, Ken |
author_sort |
Praetorius, Summer |
title |
Global and Arctic climate sensitivity enhanced by changes in North Pacific heat flux ... |
title_short |
Global and Arctic climate sensitivity enhanced by changes in North Pacific heat flux ... |
title_full |
Global and Arctic climate sensitivity enhanced by changes in North Pacific heat flux ... |
title_fullStr |
Global and Arctic climate sensitivity enhanced by changes in North Pacific heat flux ... |
title_full_unstemmed |
Global and Arctic climate sensitivity enhanced by changes in North Pacific heat flux ... |
title_sort |
global and arctic climate sensitivity enhanced by changes in north pacific heat flux ... |
publisher |
ETH Zurich |
publishDate |
2018 |
url |
https://dx.doi.org/10.3929/ethz-b-000282814 http://hdl.handle.net/20.500.11850/282814 |
genre |
albedo Arctic North Atlantic Sea ice |
genre_facet |
albedo Arctic North Atlantic Sea ice |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_doi |
https://doi.org/10.3929/ethz-b-000282814 |
_version_ |
1797572551053934592 |