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Titel |
Influence of different rates of rainfall in the basin of the Uruguay River |
VerfasserIn |
M. Bohrer, B. Zaparoli, C. B. Saldanha |
Medientyp |
Artikel
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Sprache |
Englisch
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ISSN |
1680-7340
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Digitales Dokument |
URL |
Erschienen |
In: ENSO South America ; Nr. 33 (2013-04-02), S.27-31 |
Datensatznummer |
250019078
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Publikation (Nr.) |
copernicus.org/adgeo-33-27-2013.pdf |
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Zusammenfassung |
In the state of Rio Grande do Sul, the rainfall pattern is fairly regular
and precipitation is well distributed throughout the year. The aim of this
study was to evaluate the spatial and temporal distribution of precipitation
in the Uruguay River basin from the determination of homogeneous regions
based on the rainfall pattern. Values of 47 meteorological stations of the
ANA (National Water Agency) from 1975 to 2005 were used, and values of
Pacific sea surface temperature were collected from the National Oceanic and
Atmospheric Administration, which is based on observed anomalies for different regions'
niños (1 + niño 2, 3 niño, niño 4, niño 3 + 4). From
the analysis of the results it was found that the study region showed five
homogeneous regions. Knowing the time series of each region, it was possible
to verify the regional variability in precipitation, indicating which
regions have values above and below the climatological normal, and how the
different indexes influence the rainfall pattern in the region. |
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