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Abstract:

A numerical nesting system is developed to simulate wintertime climate of the eastern South Pacific-South America-western South Atlantic region, and preliminary results are presented. The nesting system consists of a large-scale global atmospheric general circulation model (GCM) and a regional climate model (RCM). The latter is driven at its boundaries by the GCM. The particularity of this nesting system is that the GCM itself has a variable horizontal resolution (stretched grid). Our main purpose is to assess the plausibility of such a technique to improve climate representation over South America. In order to evaluate how this nesting system represents the main features of the regional circulation, several mean fields have been analyzed. The global model, despite its relatively low resolution, could simulate reasonably well the more significant large-scale circulation patterns. The use of the regional model often results in improvements, but not universally. Many of the systematic errors of the global model are also present in the regional model, although the biases tend to be rectified. Our preliminary results suggest that nesting technique is a computationally low-cost alternative for simulating regional climate features. However, additional simulations, parametrizations tuning and further diagnosis are clearly needed to represent local patterns more precisely. © Springer-Verlag 2001.

Registro:

Documento: Artículo
Título:Simulation of South American wintertime climate with a nesting system
Autor:Menéndez, C.G.; Saulo, A.C.; Li, Z.-X.
Filiación:Centro de Investigaciones del Mar y la Atmósfera, CONICET-UBA Ciudad Universitaria, Pabellón 2, Piso 2, (1428) Buenos Aires, Argentina
Centro de Investigaciones del Mar y la Atmósfera, CONICET-UBA Dpto. de Cs. de la Atmósfera y los Océanos, FCEyN-UBA Ciudad Universitaria, Pabellón 2, Piso 2, (1428) Buenos Aires, Argentina
Laboratoire de Météorologie Dynamique, CNRS Université P. et M. Curie, Tour 25, 4 place Jussieu, 75252 Paris Cedex 05, France
Año:2001
Volumen:17
Número:2-3
Página de inicio:219
Página de fin:231
DOI: http://dx.doi.org/10.1007/s003820000107
Título revista:Climate Dynamics
Título revista abreviado:Clim. Dyn.
ISSN:09307575
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09307575_v17_n2-3_p219_Menendez

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Citas:

---------- APA ----------
Menéndez, C.G., Saulo, A.C. & Li, Z.-X. (2001) . Simulation of South American wintertime climate with a nesting system. Climate Dynamics, 17(2-3), 219-231.
http://dx.doi.org/10.1007/s003820000107
---------- CHICAGO ----------
Menéndez, C.G., Saulo, A.C., Li, Z.-X. "Simulation of South American wintertime climate with a nesting system" . Climate Dynamics 17, no. 2-3 (2001) : 219-231.
http://dx.doi.org/10.1007/s003820000107
---------- MLA ----------
Menéndez, C.G., Saulo, A.C., Li, Z.-X. "Simulation of South American wintertime climate with a nesting system" . Climate Dynamics, vol. 17, no. 2-3, 2001, pp. 219-231.
http://dx.doi.org/10.1007/s003820000107
---------- VANCOUVER ----------
Menéndez, C.G., Saulo, A.C., Li, Z.-X. Simulation of South American wintertime climate with a nesting system. Clim. Dyn. 2001;17(2-3):219-231.
http://dx.doi.org/10.1007/s003820000107