Some Factors That Influence Seasonal Precipitation in Argentinean Chaco

The Chaco plain region in Argentina is located in the north of the country and east of Los Andes where the main activity is the agriculture. As such activity is highly affected by interannual rainfall variability, the influence of some of the principal atmospheric and oceanic forcing is investigated...

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Main Authors: Marcela Hebe González, María Laura Cariaga, María de los Milagros Skansi
Format: Article
Language:English
Published: Hindawi Limited 2012-01-01
Series:Advances in Meteorology
Online Access:http://dx.doi.org/10.1155/2012/359164
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spelling doaj-acb9bc1c78764f309e1ce68e90fe64452020-11-24T22:37:18ZengHindawi LimitedAdvances in Meteorology1687-93091687-93172012-01-01201210.1155/2012/359164359164Some Factors That Influence Seasonal Precipitation in Argentinean ChacoMarcela Hebe González0María Laura Cariaga1María de los Milagros Skansi2Department of Atmospheric and Oceanic Science, FCEN, University of Buenos Aires, Buenos Aires, 2 piso, Pabellón II, Ciudad Universitaria, 1428 Buenos Aires, ArgentinaDepartment of Atmospheric and Oceanic Science, FCEN, University of Buenos Aires, Buenos Aires, 2 piso, Pabellón II, Ciudad Universitaria, 1428 Buenos Aires, ArgentinaNational Meteorological Service of Argentina, 25 de Mayo 658, Buenos Aires, ArgentinaThe Chaco plain region in Argentina is located in the north of the country and east of Los Andes where the main activity is the agriculture. As such activity is highly affected by interannual rainfall variability, the influence of some of the principal atmospheric and oceanic forcing is investigated in this paper. Results show that the factors which affect precipitation highly depend on the season and the subregion. The position of the South Atlantic Height and the sea surface temperature in the coast of southern Brazil and Buenos Aires seem to be the factors that affect rainfall, all over the year. The El Niño-Southern Oscillation phenomenon affects summer and spring rainfall and the Southern Annular Mode involves spring precipitation but both only in the east of the study region. Furthermore, enhanced convection in Central Brazil, mainly influences autumn and spring rainfall.http://dx.doi.org/10.1155/2012/359164
collection DOAJ
language English
format Article
sources DOAJ
author Marcela Hebe González
María Laura Cariaga
María de los Milagros Skansi
spellingShingle Marcela Hebe González
María Laura Cariaga
María de los Milagros Skansi
Some Factors That Influence Seasonal Precipitation in Argentinean Chaco
Advances in Meteorology
author_facet Marcela Hebe González
María Laura Cariaga
María de los Milagros Skansi
author_sort Marcela Hebe González
title Some Factors That Influence Seasonal Precipitation in Argentinean Chaco
title_short Some Factors That Influence Seasonal Precipitation in Argentinean Chaco
title_full Some Factors That Influence Seasonal Precipitation in Argentinean Chaco
title_fullStr Some Factors That Influence Seasonal Precipitation in Argentinean Chaco
title_full_unstemmed Some Factors That Influence Seasonal Precipitation in Argentinean Chaco
title_sort some factors that influence seasonal precipitation in argentinean chaco
publisher Hindawi Limited
series Advances in Meteorology
issn 1687-9309
1687-9317
publishDate 2012-01-01
description The Chaco plain region in Argentina is located in the north of the country and east of Los Andes where the main activity is the agriculture. As such activity is highly affected by interannual rainfall variability, the influence of some of the principal atmospheric and oceanic forcing is investigated in this paper. Results show that the factors which affect precipitation highly depend on the season and the subregion. The position of the South Atlantic Height and the sea surface temperature in the coast of southern Brazil and Buenos Aires seem to be the factors that affect rainfall, all over the year. The El Niño-Southern Oscillation phenomenon affects summer and spring rainfall and the Southern Annular Mode involves spring precipitation but both only in the east of the study region. Furthermore, enhanced convection in Central Brazil, mainly influences autumn and spring rainfall.
url http://dx.doi.org/10.1155/2012/359164
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