Abstract:
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.
Registro:
Documento: |
Artículo
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Título: | Climate response associated with the Southern Annular Mode in the surroundings of Antarctic Peninsula: A multimodel ensemble analysis |
Autor: | Carril, A.F.; Menéndez, C.G.; Navarra, A. |
Filiación: | National Institute of Geophysics and Volcanology, Via Donato Creti 12, I-40128 Bologna, Italy Centro de Investigaciones del Mar y la Atmósfera, Consejo de Investigaciones del Mar y la Atmosphere, Universidad de Buenos Aires, Pabellón 2 Piso 2, 1428 Buenos Aires, Argentina
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Palabras clave: | 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 |
Año: | 2005
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Volumen: | 32
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Número: | 16
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Página de inicio: | 1
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Página de fin: | 5
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DOI: |
http://dx.doi.org/10.1029/2005GL023581 |
Título revista: | Geophysical Research Letters
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Título revista abreviado: | Geophys. Res. Lett.
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ISSN: | 00948276
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CODEN: | GPRLA
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00948276_v32_n16_p1_Carril |
Referencias:
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Citas:
---------- APA ----------
Carril, A.F., Menéndez, C.G. & Navarra, A.
(2005)
. Climate response associated with the Southern Annular Mode in the surroundings of Antarctic Peninsula: A multimodel ensemble analysis. Geophysical Research Letters, 32(16), 1-5.
http://dx.doi.org/10.1029/2005GL023581---------- CHICAGO ----------
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"
. Geophysical Research Letters 32, no. 16
(2005) : 1-5.
http://dx.doi.org/10.1029/2005GL023581---------- MLA ----------
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"
. Geophysical Research Letters, vol. 32, no. 16, 2005, pp. 1-5.
http://dx.doi.org/10.1029/2005GL023581---------- VANCOUVER ----------
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. Geophys. Res. Lett. 2005;32(16):1-5.
http://dx.doi.org/10.1029/2005GL023581