Influence of Arctic sea-ice loss on the Greenland ice sheet climate
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...
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Online Access: | http://resolver.tudelft.nl/uuid:0c8205c0-a763-47eb-b175-7614fbcc3e25 https://doi.org/10.1007/s00382-021-05897-4 |
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fttudelft:oai:tudelft.nl:uuid:0c8205c0-a763-47eb-b175-7614fbcc3e25 2024-02-11T09:54:54+01:00 Influence of Arctic sea-ice loss on the Greenland ice sheet climate Sellevold, R. (author) Lenaerts, Jan T.M. (author) Vizcaino, M. (author) 2021 http://resolver.tudelft.nl/uuid:0c8205c0-a763-47eb-b175-7614fbcc3e25 https://doi.org/10.1007/s00382-021-05897-4 en eng http://www.scopus.com/inward/record.url?scp=85111539716&partnerID=8YFLogxK Climate Dynamics: observational, theoretical and computational research on the climate system--0930-7575--3c620e44-ba1a-47e5-aa28-8382a4e2f696 http://resolver.tudelft.nl/uuid:0c8205c0-a763-47eb-b175-7614fbcc3e25 https://doi.org/10.1007/s00382-021-05897-4 © 2021 R. Sellevold, Jan T.M. Lenaerts, M. Vizcaino Arctic Community Earth System Model 2.1 GrIS Surface mass balance Sea-ice journal article 2021 fttudelft https://doi.org/10.1007/s00382-021-05897-4 2024-01-24T23:32:04Z 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. Physical and Space Geodesy Geoscience and Remote Sensing Article in Journal/Newspaper albedo Arctic Baffin Bay Baffin Bay Baffin Greenland Ice Sheet Sea ice Delft University of Technology: Institutional Repository Arctic Baffin Bay Greenland Climate Dynamics |
institution |
Open Polar |
collection |
Delft University of Technology: Institutional Repository |
op_collection_id |
fttudelft |
language |
English |
topic |
Arctic Community Earth System Model 2.1 GrIS Surface mass balance Sea-ice |
spellingShingle |
Arctic Community Earth System Model 2.1 GrIS Surface mass balance Sea-ice Sellevold, R. (author) Lenaerts, Jan T.M. (author) Vizcaino, M. (author) Influence of Arctic sea-ice loss on the Greenland ice sheet climate |
topic_facet |
Arctic Community Earth System Model 2.1 GrIS Surface mass balance Sea-ice |
description |
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. Physical and Space Geodesy Geoscience and Remote Sensing |
format |
Article in Journal/Newspaper |
author |
Sellevold, R. (author) Lenaerts, Jan T.M. (author) Vizcaino, M. (author) |
author_facet |
Sellevold, R. (author) Lenaerts, Jan T.M. (author) Vizcaino, M. (author) |
author_sort |
Sellevold, R. (author) |
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 |
publishDate |
2021 |
url |
http://resolver.tudelft.nl/uuid:0c8205c0-a763-47eb-b175-7614fbcc3e25 https://doi.org/10.1007/s00382-021-05897-4 |
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_relation |
http://www.scopus.com/inward/record.url?scp=85111539716&partnerID=8YFLogxK Climate Dynamics: observational, theoretical and computational research on the climate system--0930-7575--3c620e44-ba1a-47e5-aa28-8382a4e2f696 http://resolver.tudelft.nl/uuid:0c8205c0-a763-47eb-b175-7614fbcc3e25 https://doi.org/10.1007/s00382-021-05897-4 |
op_rights |
© 2021 R. Sellevold, Jan T.M. Lenaerts, M. Vizcaino |
op_doi |
https://doi.org/10.1007/s00382-021-05897-4 |
container_title |
Climate Dynamics |
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1790609600421036032 |