Influence of Arctic sea-ice loss on the Greenland ice sheet climate
Abstract The Arctic is the region on Earth that is warming the fastest. At the same time, Arctic sea ice is reducing while the Greenland ice sheet (GrIS) is losing mass at an accelerated pace. Here, we study the seasonal impact of reduced Arctic sea ice on GrIS surface mass balance (SMB), using the...
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Springer Science and Business Media LLC
2021
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Online Access: | http://dx.doi.org/10.1007/s00382-021-05897-4 https://link.springer.com/content/pdf/10.1007/s00382-021-05897-4.pdf https://link.springer.com/article/10.1007/s00382-021-05897-4/fulltext.html |
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crspringernat:10.1007/s00382-021-05897-4 2023-05-15T13:11:11+02:00 Influence of Arctic sea-ice loss on the Greenland ice sheet climate Sellevold, Raymond Lenaerts, Jan T. M. Vizcaino, Miren Nederlandse Organisatie voor Wetenschappelijk Onderzoek European Research Council Delft University of Technology 2021 http://dx.doi.org/10.1007/s00382-021-05897-4 https://link.springer.com/content/pdf/10.1007/s00382-021-05897-4.pdf https://link.springer.com/article/10.1007/s00382-021-05897-4/fulltext.html en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Climate Dynamics ISSN 0930-7575 1432-0894 Atmospheric Science journal-article 2021 crspringernat https://doi.org/10.1007/s00382-021-05897-4 2022-01-04T09:58:51Z Abstract The Arctic is the region on Earth that is warming the fastest. At the same time, Arctic sea ice is reducing while the Greenland ice sheet (GrIS) is losing mass at an accelerated pace. Here, we study the seasonal impact of reduced Arctic sea ice on GrIS surface mass balance (SMB), using the Community Earth System Model version 2.1 (CESM2), which features an advanced, interactive calculation of SMB. Addressing the impact of sea-ice reductions on the GrIS SMB from observations is difficult due to the short observational records. Also, signals detected using transient climate simulations may be aliases of other forcings. Here, we analyze dedicated simulations from the Polar Amplification Model Intercomparison Project with reduced Arctic sea ice and compare them with preindustrial sea ice simulations while keeping all other forcings constant. In response to reduced sea ice, the GrIS SMB increases in winter due to increased precipitation, driven by the more humid atmosphere and increasing cyclones. In summer, surface melt increases due to a warmer, more humid atmosphere providing increased energy transfer to the surface through the sensible and latent heat fluxes, which triggers the melt-albedo feedback. Further, warming occurs throughout the entire troposphere over Baffin Bay. This deep warming results in regional enhancement of the 500 hPa geopotential heights over the Baffin Bay and Greenland, increasing blocking and heat advection over the GrIS’ surface. This anomalous circulation pattern has been linked to recent increases in the surface melt of the GrIS. Article in Journal/Newspaper albedo Arctic Baffin Bay Baffin Bay Baffin Greenland Ice Sheet Sea ice Springer Nature (via Crossref) Arctic Baffin Bay Greenland Climate Dynamics 58 1-2 179 193 |
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Open Polar |
collection |
Springer Nature (via Crossref) |
op_collection_id |
crspringernat |
language |
English |
topic |
Atmospheric Science |
spellingShingle |
Atmospheric Science Sellevold, Raymond Lenaerts, Jan T. M. Vizcaino, Miren Influence of Arctic sea-ice loss on the Greenland ice sheet climate |
topic_facet |
Atmospheric Science |
description |
Abstract The Arctic is the region on Earth that is warming the fastest. At the same time, Arctic sea ice is reducing while the Greenland ice sheet (GrIS) is losing mass at an accelerated pace. Here, we study the seasonal impact of reduced Arctic sea ice on GrIS surface mass balance (SMB), using the Community Earth System Model version 2.1 (CESM2), which features an advanced, interactive calculation of SMB. Addressing the impact of sea-ice reductions on the GrIS SMB from observations is difficult due to the short observational records. Also, signals detected using transient climate simulations may be aliases of other forcings. Here, we analyze dedicated simulations from the Polar Amplification Model Intercomparison Project with reduced Arctic sea ice and compare them with preindustrial sea ice simulations while keeping all other forcings constant. In response to reduced sea ice, the GrIS SMB increases in winter due to increased precipitation, driven by the more humid atmosphere and increasing cyclones. In summer, surface melt increases due to a warmer, more humid atmosphere providing increased energy transfer to the surface through the sensible and latent heat fluxes, which triggers the melt-albedo feedback. Further, warming occurs throughout the entire troposphere over Baffin Bay. This deep warming results in regional enhancement of the 500 hPa geopotential heights over the Baffin Bay and Greenland, increasing blocking and heat advection over the GrIS’ surface. This anomalous circulation pattern has been linked to recent increases in the surface melt of the GrIS. |
author2 |
Nederlandse Organisatie voor Wetenschappelijk Onderzoek European Research Council Delft University of Technology |
format |
Article in Journal/Newspaper |
author |
Sellevold, Raymond Lenaerts, Jan T. M. Vizcaino, Miren |
author_facet |
Sellevold, Raymond Lenaerts, Jan T. M. Vizcaino, Miren |
author_sort |
Sellevold, Raymond |
title |
Influence of Arctic sea-ice loss on the Greenland ice sheet climate |
title_short |
Influence of Arctic sea-ice loss on the Greenland ice sheet climate |
title_full |
Influence of Arctic sea-ice loss on the Greenland ice sheet climate |
title_fullStr |
Influence of Arctic sea-ice loss on the Greenland ice sheet climate |
title_full_unstemmed |
Influence of Arctic sea-ice loss on the Greenland ice sheet climate |
title_sort |
influence of arctic sea-ice loss on the greenland ice sheet climate |
publisher |
Springer Science and Business Media LLC |
publishDate |
2021 |
url |
http://dx.doi.org/10.1007/s00382-021-05897-4 https://link.springer.com/content/pdf/10.1007/s00382-021-05897-4.pdf https://link.springer.com/article/10.1007/s00382-021-05897-4/fulltext.html |
geographic |
Arctic Baffin Bay Greenland |
geographic_facet |
Arctic Baffin Bay Greenland |
genre |
albedo Arctic Baffin Bay Baffin Bay Baffin Greenland Ice Sheet Sea ice |
genre_facet |
albedo Arctic Baffin Bay Baffin Bay Baffin Greenland Ice Sheet Sea ice |
op_source |
Climate Dynamics ISSN 0930-7575 1432-0894 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1007/s00382-021-05897-4 |
container_title |
Climate Dynamics |
container_volume |
58 |
container_issue |
1-2 |
container_start_page |
179 |
op_container_end_page |
193 |
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