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Revista U.D.C.A Actualidad & Divulgación Científica

Print version ISSN 0123-4226

Abstract

CUARTAS, Daniel Elías et al. SPATIAL AND TEMPORAL TRENDS OF EXTREME CLIMATE EVENTS IN GEOGRAPHICAL VALLEY OF CAUCA RIVER. rev.udcaactual.divulg.cient. [online]. 2017, vol.20, n.2, pp.267-278. ISSN 0123-4226.

Extreme climate events can impact the occurrence of dengue and diarrheal diseases. The objective of this paper was to describe the spatial and temporal trend of extreme temperature and precipitation events in the geographical Valley of Cauca River. Quality and homogenization of climate data was monitored. Robust nonparametric trend analysis of extreme weather events for precipitation and temperature was developed. 24 weather stations were analyzed in the geographical Valle del Cauca River. The regional trend analysis showed a trend of increasing rates of extreme events for precipitation and temperature. Meanwhile, local analysis identified that this trend is not homogeneous in the study area. The rise in volume of precipitation and in the number of rainy days can increase Aedes aegypti, density and larval longevity and also cause overflowing of rivers and canals, with combination of sewage and resuspension of solids and pathogenic microorganisms in water. In addition, the rise in temperature shortens Aedes life cycle and viral replication in mosquitoes with higher probability of dengue transmission and meanwhile increases the survival of bacteria and protozoa in surface sewage and soil causing more occurrence of EDA.

Keywords : Climate effects; temperature; rain; dengue; diarrhea.

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