Artículo

Garreaud, R.D.; Vuille, M.; Compagnucci, R.; Marengo, J. "Present-day South American climate" (2009) Palaeogeography, Palaeoclimatology, Palaeoecology. 281(3-4):180-195
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Abstract:

This paper documents the main features of the climate and climate variability over South America, on the basis of instrumental observations gathered during the 20th Century. It should provide a modern reference framework for paleoclimate research in South America, targeting high-resolution proxies over the past few centuries. Several datasets suitable for present-day climate research are first described, highlighting their advantages as well as their limitations. We then provide a basic physical understanding of the mean annual cycle of the precipitation and atmospheric circulation over the continent and the adjacent oceans. In particular, the diversity of precipitation, temperature and wind patterns is interpreted in terms of the long meridional extent of the continent and the disruption of the large-scale circulation caused by the Andes cordillera, the contrasting oceanic boundary conditions and the landmass distribution. Similarly, the intensity and timing of the interannual and interdecadal climatic fluctuations exhibit considerable geographical dependence, as some regions are more influenced by large-scale phenomena rooted in the tropical oceans while others are more influenced by high-latitude phenomena. The impact of these large-scale phenomena over South America is documented by a regression analysis between selected atmospheric indices and the precipitation and temperature fields. We have included a discussion on the seasonality and long-term stability of such impacts, and complemented our general description by an updated review of the literature on climate variability over specific regions. © 2008 Elsevier B.V. All rights reserved.

Registro:

Documento: Artículo
Título:Present-day South American climate
Autor:Garreaud, R.D.; Vuille, M.; Compagnucci, R.; Marengo, J.
Filiación:Department of Geophysics, Universidad de Chile, Blanco Encalada 2002, Santiago, Chile
Department of Earth and Atmospheric Sciences, University at Albany, State University of New York, Albany, NY, United States
Departamento de Ciencias de la Atmósfera y los Océanos, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
Centro de Previsão de Tempo e Estudos Climáticos, INPE, Cachoeira Paulista, Sao Paulo, Brazil
Palabras clave:Atmospheric circulation; Climate; Climate variability; Precipitation; South America; analytical framework; annual cycle; boundary layer; climate variation; data set; latitudinal gradient; meridional circulation; paleoclimate; precipitation (climatology); regression analysis; spatial distribution; temperature effect; twentieth century; Andes; Cordillera Central [Andes]; South America
Año:2009
Volumen:281
Número:3-4
Página de inicio:180
Página de fin:195
DOI: http://dx.doi.org/10.1016/j.palaeo.2007.10.032
Título revista:Palaeogeography, Palaeoclimatology, Palaeoecology
Título revista abreviado:Palaeogeogr. Palaeoclimatol. Palaeoecol.
ISSN:00310182
CODEN:PPPYA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00310182_v281_n3-4_p180_Garreaud

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Citas:

---------- APA ----------
Garreaud, R.D., Vuille, M., Compagnucci, R. & Marengo, J. (2009) . Present-day South American climate. Palaeogeography, Palaeoclimatology, Palaeoecology, 281(3-4), 180-195.
http://dx.doi.org/10.1016/j.palaeo.2007.10.032
---------- CHICAGO ----------
Garreaud, R.D., Vuille, M., Compagnucci, R., Marengo, J. "Present-day South American climate" . Palaeogeography, Palaeoclimatology, Palaeoecology 281, no. 3-4 (2009) : 180-195.
http://dx.doi.org/10.1016/j.palaeo.2007.10.032
---------- MLA ----------
Garreaud, R.D., Vuille, M., Compagnucci, R., Marengo, J. "Present-day South American climate" . Palaeogeography, Palaeoclimatology, Palaeoecology, vol. 281, no. 3-4, 2009, pp. 180-195.
http://dx.doi.org/10.1016/j.palaeo.2007.10.032
---------- VANCOUVER ----------
Garreaud, R.D., Vuille, M., Compagnucci, R., Marengo, J. Present-day South American climate. Palaeogeogr. Palaeoclimatol. Palaeoecol. 2009;281(3-4):180-195.
http://dx.doi.org/10.1016/j.palaeo.2007.10.032