Climate variability and change in South America

ENSO, Decadal Variability and Climate Change in South America: Trends, Teleconnections, and Potential Impacts; Guayaquil, Ecuador, 12-14 October 2010; El Nio and the Southern Oscillation (ENSO) have profound effects on South American climate. Warm ENSO events (El Nios) and cold ENSO events (La Nias)...

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Autores principales: McPhaden, M.J., Vera, C.S., Martnez Guingla, R.
Formato: JOUR
Materias:
climate change
climate variation
conference proceeding
decadal variation
El Nino-Southern Oscillation
sea surface temperature
temperature anomaly
trend analysis
Altiplano
Andes
Ecuador
Galapagos Islands
Pacific Ocean
Pacific Ocean (Central)
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00963941_v91_n49_p473_McPhaden
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_00963941_v91_n49_p473_McPhaden2023-10-03T14:56:46Z Climate variability and change in South America McPhaden, M.J. Vera, C.S. Martnez Guingla, R. climate change climate variation conference proceeding decadal variation El Nino-Southern Oscillation sea surface temperature temperature anomaly trend analysis Altiplano Andes Ecuador Galapagos Islands Pacific Ocean Pacific Ocean (Central) ENSO, Decadal Variability and Climate Change in South America: Trends, Teleconnections, and Potential Impacts; Guayaquil, Ecuador, 12-14 October 2010; El Nio and the Southern Oscillation (ENSO) have profound effects on South American climate. Warm ENSO events (El Nios) and cold ENSO events (La Nias), which occur on year-to-year time scales, are associated with droughts, floods, and other extreme weather events across the continent. Anthropogenic greenhouse gas warming of the planet will also likely have a profound effect on South America, through both gradual shifts in the baseline climate and increases in extreme events, including possible changes in the ENSO cycle. There are indications that climate change may already be having an impact in South America, with temperature trends observed in the Galpagos and in the altiplano of the northern Andes and in the shrinking of tropical mountain glaciers. There has also been a shift in the behavior of El Nio, with an increased tendency for warm sea surface temperature anomalies to be concentrated in the central Pacific rather than in the eastern Pacific during the past 2 decades. These central Pacific (or "Modoki," which means "similar but different" in Japanese) El Nios have a different signature than eastern Pacific El Nios in terms of teleconnection patterns on weather variability in South America and in terms of effects on marine ecosystems and fisheries along the west coast of the continent. However, the instrumental climate record is relatively short, and many of the observed trends could simply be the result of natural decadal climate variability that is unresolved in observations. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00963941_v91_n49_p473_McPhaden
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
climate variation
conference proceeding
decadal variation
El Nino-Southern Oscillation
sea surface temperature
temperature anomaly
trend analysis
Altiplano
Andes
Ecuador
Galapagos Islands
Pacific Ocean
Pacific Ocean (Central)
spellingShingle climate change
climate variation
conference proceeding
decadal variation
El Nino-Southern Oscillation
sea surface temperature
temperature anomaly
trend analysis
Altiplano
Andes
Ecuador
Galapagos Islands
Pacific Ocean
Pacific Ocean (Central)
McPhaden, M.J.
Vera, C.S.
Martnez Guingla, R.
Climate variability and change in South America
topic_facet climate change
climate variation
conference proceeding
decadal variation
El Nino-Southern Oscillation
sea surface temperature
temperature anomaly
trend analysis
Altiplano
Andes
Ecuador
Galapagos Islands
Pacific Ocean
Pacific Ocean (Central)
description ENSO, Decadal Variability and Climate Change in South America: Trends, Teleconnections, and Potential Impacts; Guayaquil, Ecuador, 12-14 October 2010; El Nio and the Southern Oscillation (ENSO) have profound effects on South American climate. Warm ENSO events (El Nios) and cold ENSO events (La Nias), which occur on year-to-year time scales, are associated with droughts, floods, and other extreme weather events across the continent. Anthropogenic greenhouse gas warming of the planet will also likely have a profound effect on South America, through both gradual shifts in the baseline climate and increases in extreme events, including possible changes in the ENSO cycle. There are indications that climate change may already be having an impact in South America, with temperature trends observed in the Galpagos and in the altiplano of the northern Andes and in the shrinking of tropical mountain glaciers. There has also been a shift in the behavior of El Nio, with an increased tendency for warm sea surface temperature anomalies to be concentrated in the central Pacific rather than in the eastern Pacific during the past 2 decades. These central Pacific (or "Modoki," which means "similar but different" in Japanese) El Nios have a different signature than eastern Pacific El Nios in terms of teleconnection patterns on weather variability in South America and in terms of effects on marine ecosystems and fisheries along the west coast of the continent. However, the instrumental climate record is relatively short, and many of the observed trends could simply be the result of natural decadal climate variability that is unresolved in observations.
format JOUR
author McPhaden, M.J.
Vera, C.S.
Martnez Guingla, R.
author_facet McPhaden, M.J.
Vera, C.S.
Martnez Guingla, R.
author_sort McPhaden, M.J.
title Climate variability and change in South America
title_short Climate variability and change in South America
title_full Climate variability and change in South America
title_fullStr Climate variability and change in South America
title_full_unstemmed Climate variability and change in South America
title_sort climate variability and change in south america
url http://hdl.handle.net/20.500.12110/paper_00963941_v91_n49_p473_McPhaden
work_keys_str_mv AT mcphadenmj climatevariabilityandchangeinsouthamerica
AT veracs climatevariabilityandchangeinsouthamerica
AT martnezguinglar climatevariabilityandchangeinsouthamerica
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