Impact of decreasing sea ice cover and warming Arctic surface temperature on the Northern mid-latitude climate – comparison of coupled with uncoupled EC-Earth simulations
Idealized atmosphere-only simulations with reduced and removed Arctic sea-ice cover and increased Arctic surface temperatures are compared with fully coupled atmosphere-ocean-sea-ice simulations for 1850-2100 including increases in greenhouse gas and aerosol concentrations. While the uncoupled simul...
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ftawi:oai:epic.awi.de:30247 2024-09-15T17:51:26+00:00 Impact of decreasing sea ice cover and warming Arctic surface temperature on the Northern mid-latitude climate – comparison of coupled with uncoupled EC-Earth simulations Semmler, T. Gleeson, E. McGrath, R. Jung, Thomas 2012-04 application/pdf https://epic.awi.de/id/eprint/30247/ https://epic.awi.de/id/eprint/30247/1/Poster_Role_of_Arctic.pdf https://hdl.handle.net/10013/epic.39157 https://hdl.handle.net/10013/epic.39157.d001 unknown https://epic.awi.de/id/eprint/30247/1/Poster_Role_of_Arctic.pdf https://hdl.handle.net/10013/epic.39157.d001 Semmler, T. orcid:0000-0002-2254-4901 , Gleeson, E. , McGrath, R. and Jung, T. orcid:0000-0002-2651-1293 (2012) Impact of decreasing sea ice cover and warming Arctic surface temperature on the Northern mid-latitude climate – comparison of coupled with uncoupled EC-Earth simulations , European Geosciences Union General Assembly 2012, Vienna . hdl:10013/epic.39157 EPIC3European Geosciences Union General Assembly 2012, Vienna Conference notRev 2012 ftawi 2024-06-24T04:05:07Z Idealized atmosphere-only simulations with reduced and removed Arctic sea-ice cover and increased Arctic surface temperatures are compared with fully coupled atmosphere-ocean-sea-ice simulations for 1850-2100 including increases in greenhouse gas and aerosol concentrations. While the uncoupled simulations only contain surface forcing in the areas of Arctic sea-ice of the reference simulation, the coupled simulations show warming over the whole globe although in the Arctic the strongest signal occurs in all seasons but summer. A warming of more than 21 °C over the northern Barents Sea in winter 2001-2100 compared to winter 1851-1950 is simulated according to the strong RCP 8.5 scenario. The weakest warming within the area north of 40 ºN can be seen south of Greenland and Iceland with even a slight cooling simulated in spring according to the moderate RCP 4.5 scenario, due to a weakened Atlantic Meridional Overturning Circulation. Common sea level pressure responses between the idealized sensitivity studies and the coupled simulations are decreases in the Central and Western Arctic. While in the idealized studies sea level pressure increases can be seen over Eastern Europe, increases in the coupled simulations occur over Ireland and the UK or west thereof. Conference Object Arctic Barents Sea Greenland Iceland Sea ice Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
description |
Idealized atmosphere-only simulations with reduced and removed Arctic sea-ice cover and increased Arctic surface temperatures are compared with fully coupled atmosphere-ocean-sea-ice simulations for 1850-2100 including increases in greenhouse gas and aerosol concentrations. While the uncoupled simulations only contain surface forcing in the areas of Arctic sea-ice of the reference simulation, the coupled simulations show warming over the whole globe although in the Arctic the strongest signal occurs in all seasons but summer. A warming of more than 21 °C over the northern Barents Sea in winter 2001-2100 compared to winter 1851-1950 is simulated according to the strong RCP 8.5 scenario. The weakest warming within the area north of 40 ºN can be seen south of Greenland and Iceland with even a slight cooling simulated in spring according to the moderate RCP 4.5 scenario, due to a weakened Atlantic Meridional Overturning Circulation. Common sea level pressure responses between the idealized sensitivity studies and the coupled simulations are decreases in the Central and Western Arctic. While in the idealized studies sea level pressure increases can be seen over Eastern Europe, increases in the coupled simulations occur over Ireland and the UK or west thereof. |
format |
Conference Object |
author |
Semmler, T. Gleeson, E. McGrath, R. Jung, Thomas |
spellingShingle |
Semmler, T. Gleeson, E. McGrath, R. Jung, Thomas Impact of decreasing sea ice cover and warming Arctic surface temperature on the Northern mid-latitude climate – comparison of coupled with uncoupled EC-Earth simulations |
author_facet |
Semmler, T. Gleeson, E. McGrath, R. Jung, Thomas |
author_sort |
Semmler, T. |
title |
Impact of decreasing sea ice cover and warming Arctic surface temperature on the Northern mid-latitude climate – comparison of coupled with uncoupled EC-Earth simulations |
title_short |
Impact of decreasing sea ice cover and warming Arctic surface temperature on the Northern mid-latitude climate – comparison of coupled with uncoupled EC-Earth simulations |
title_full |
Impact of decreasing sea ice cover and warming Arctic surface temperature on the Northern mid-latitude climate – comparison of coupled with uncoupled EC-Earth simulations |
title_fullStr |
Impact of decreasing sea ice cover and warming Arctic surface temperature on the Northern mid-latitude climate – comparison of coupled with uncoupled EC-Earth simulations |
title_full_unstemmed |
Impact of decreasing sea ice cover and warming Arctic surface temperature on the Northern mid-latitude climate – comparison of coupled with uncoupled EC-Earth simulations |
title_sort |
impact of decreasing sea ice cover and warming arctic surface temperature on the northern mid-latitude climate – comparison of coupled with uncoupled ec-earth simulations |
publishDate |
2012 |
url |
https://epic.awi.de/id/eprint/30247/ https://epic.awi.de/id/eprint/30247/1/Poster_Role_of_Arctic.pdf https://hdl.handle.net/10013/epic.39157 https://hdl.handle.net/10013/epic.39157.d001 |
genre |
Arctic Barents Sea Greenland Iceland Sea ice |
genre_facet |
Arctic Barents Sea Greenland Iceland Sea ice |
op_source |
EPIC3European Geosciences Union General Assembly 2012, Vienna |
op_relation |
https://epic.awi.de/id/eprint/30247/1/Poster_Role_of_Arctic.pdf https://hdl.handle.net/10013/epic.39157.d001 Semmler, T. orcid:0000-0002-2254-4901 , Gleeson, E. , McGrath, R. and Jung, T. orcid:0000-0002-2651-1293 (2012) Impact of decreasing sea ice cover and warming Arctic surface temperature on the Northern mid-latitude climate – comparison of coupled with uncoupled EC-Earth simulations , European Geosciences Union General Assembly 2012, Vienna . hdl:10013/epic.39157 |
_version_ |
1810293338830536704 |