Climate response associated with the Southern Annular Mode in the surroundings of Antarctic Peninsula: A multimodel ensemble analysis

This paper is an attempt to extract an average picture of the response of the Southern Annular Mode (SAM) to increasing greenhouse gases (GHG) forcing from a multimodel ensemble of simulations conducted in the framework of the IPCC 4th assessment experiments. Our analysis confirms that the climate c...

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Autores principales: Carril, A.F., Menéndez, C.G., Navarra, A.
Formato: JOUR
Materias:
Climate change
Computer simulation
Global warming
Greenhouse effect
Mathematical models
Sea ice
Greenhouse gases
Multimodel ensemble analysis
Southern annular mode (SAM)
Climatology
climate change
climate feedback
Southern Hemisphere annular mode
Antarctic Peninsula
Antarctica
Arctic and Antarctic
West Antarctica
World
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00948276_v32_n16_p1_Carril
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00948276_v32_n16_p1_Carril
record_format dspace
spelling todo:paper_00948276_v32_n16_p1_Carril2023-10-03T14:56:29Z Climate response associated with the Southern Annular Mode in the surroundings of Antarctic Peninsula: A multimodel ensemble analysis Carril, A.F. Menéndez, C.G. Navarra, A. Climate change Computer simulation Global warming Greenhouse effect Mathematical models Sea ice Greenhouse gases Multimodel ensemble analysis Southern annular mode (SAM) Climatology climate change climate feedback Southern Hemisphere annular mode Antarctic Peninsula Antarctica Arctic and Antarctic West Antarctica World This paper is an attempt to extract an average picture of the response of the Southern Annular Mode (SAM) to increasing greenhouse gases (GHG) forcing from a multimodel ensemble of simulations conducted in the framework of the IPCC 4th assessment experiments. Our analysis confirms that the climate change signal in the mid-to high southern latitudes projects strongly into the positive phase (PP) of the SAM. Over the present climate time slice (1970-1999), multimodel ensemble mean reproduce the regional warming around the Antarctic Peninsula (AP) associated with the SAM. When increasing GHG (future time slice, 2070-2099), warming in the neighborhoods of the AP and decreasing sea-ice volume in the sea-ice edge region in the Amundsen and Weddell Seas intensifies, suggesting that recent observed sea-ice trends around AP could be associated to anthropogenic forcings. Changes in surface temperature and sea-ice are consistent with anomalous atmospheric heat transport associated with circulation anomalies. Copyright 2005 by the American Geophysical Union. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00948276_v32_n16_p1_Carril
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Climate change
Computer simulation
Global warming
Greenhouse effect
Mathematical models
Sea ice
Greenhouse gases
Multimodel ensemble analysis
Southern annular mode (SAM)
Climatology
climate change
climate feedback
Southern Hemisphere annular mode
Antarctic Peninsula
Antarctica
Arctic and Antarctic
West Antarctica
World
spellingShingle Climate change
Computer simulation
Global warming
Greenhouse effect
Mathematical models
Sea ice
Greenhouse gases
Multimodel ensemble analysis
Southern annular mode (SAM)
Climatology
climate change
climate feedback
Southern Hemisphere annular mode
Antarctic Peninsula
Antarctica
Arctic and Antarctic
West Antarctica
World
Carril, A.F.
Menéndez, C.G.
Navarra, A.
Climate response associated with the Southern Annular Mode in the surroundings of Antarctic Peninsula: A multimodel ensemble analysis
topic_facet Climate change
Computer simulation
Global warming
Greenhouse effect
Mathematical models
Sea ice
Greenhouse gases
Multimodel ensemble analysis
Southern annular mode (SAM)
Climatology
climate change
climate feedback
Southern Hemisphere annular mode
Antarctic Peninsula
Antarctica
Arctic and Antarctic
West Antarctica
World
description This paper is an attempt to extract an average picture of the response of the Southern Annular Mode (SAM) to increasing greenhouse gases (GHG) forcing from a multimodel ensemble of simulations conducted in the framework of the IPCC 4th assessment experiments. Our analysis confirms that the climate change signal in the mid-to high southern latitudes projects strongly into the positive phase (PP) of the SAM. Over the present climate time slice (1970-1999), multimodel ensemble mean reproduce the regional warming around the Antarctic Peninsula (AP) associated with the SAM. When increasing GHG (future time slice, 2070-2099), warming in the neighborhoods of the AP and decreasing sea-ice volume in the sea-ice edge region in the Amundsen and Weddell Seas intensifies, suggesting that recent observed sea-ice trends around AP could be associated to anthropogenic forcings. Changes in surface temperature and sea-ice are consistent with anomalous atmospheric heat transport associated with circulation anomalies. Copyright 2005 by the American Geophysical Union.
format JOUR
author Carril, A.F.
Menéndez, C.G.
Navarra, A.
author_facet Carril, A.F.
Menéndez, C.G.
Navarra, A.
author_sort Carril, A.F.
title Climate response associated with the Southern Annular Mode in the surroundings of Antarctic Peninsula: A multimodel ensemble analysis
title_short Climate response associated with the Southern Annular Mode in the surroundings of Antarctic Peninsula: A multimodel ensemble analysis
title_full Climate response associated with the Southern Annular Mode in the surroundings of Antarctic Peninsula: A multimodel ensemble analysis
title_fullStr Climate response associated with the Southern Annular Mode in the surroundings of Antarctic Peninsula: A multimodel ensemble analysis
title_full_unstemmed Climate response associated with the Southern Annular Mode in the surroundings of Antarctic Peninsula: A multimodel ensemble analysis
title_sort climate response associated with the southern annular mode in the surroundings of antarctic peninsula: a multimodel ensemble analysis
url http://hdl.handle.net/20.500.12110/paper_00948276_v32_n16_p1_Carril
work_keys_str_mv AT carrilaf climateresponseassociatedwiththesouthernannularmodeinthesurroundingsofantarcticpeninsulaamultimodelensembleanalysis
AT menendezcg climateresponseassociatedwiththesouthernannularmodeinthesurroundingsofantarcticpeninsulaamultimodelensembleanalysis
AT navarraa climateresponseassociatedwiththesouthernannularmodeinthesurroundingsofantarcticpeninsulaamultimodelensembleanalysis
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