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Call for Papers for the semi-thematic N° 67: (Re)defining rural territories, between the global South and North: actors, processes, scales.
Full papers are invited to be submitted via the journal's official platform by 15 March 2024.
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Analysis of the daily concentration precipitation in central Chile and its relation to zonal (sub-tropicality) and meridian (orographic) components
Abstract
This paper analyzes the spatial and temporal distribution of irregularity of daily rainfall in central Chile (32° 50’S - 34°12 ‘S), using the concentration index (CI). The concentration index was calculated for a total of 16 meteorological stations, and for the period 1965 to 2010. The purpose was to generate a climate regionalization based on a daily rate which measures the erratic rainfall. Theoretically two hypotheses were tested: the first proposes that CI decreases from north to south associated with the subtropical component, the second hypothesis is that the effect of topography on CI, causing a reduction in the rate from the intermediate depression to the Andes and a west-east decreasing gradient. The results obtained do not account for a reduction to the south as expected, but they confirmed a
significant CI decreased to the coastal range and the Andes.
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