%0 Journal Article
%T THE HYDROCLIMATOLOGY OF GORGONA ISLAND: SEASONAL AND ENSO-RELATED PATTERNSA
%A Blanco
%A Juan F.
%J Actualidades Biol¨®gicas
%D 2009
%I Universidad de Antioquia
%X most small watersheds in the tropical eastern pacific remain ungauged, and discharge analyses using gauge and simulated data have been published only for a few large rivers. i analyzed a 20-yr record of rainfall and stream discharge from gorgona island, a natural national park located 30 km offshore in the pacific ocean of colombia to explore intra- and inter-annual patterns and drivers. gorgona island receives > 6.600 mm of annual rainfall thus feeding numerous permanent streams. inter tropical convergence zone-driven seasonal rainfall patterns (unimodal) were consistent regardless of interannual variability. however, a large yearly variation was observed between may and august. monthly and annual rainfall in gorgona island was greater than at a neighboring continental-coastal area, suggesting the occurrence of orographic and convective rain. el ni£¿o southern oscillation slightly influenced interannual variation in rainfall, but it strongly influenced stream discharge. the importance of the choc¨® jet current and meso-scale stationary systems is discussed.
%K choc¨® jet current
%K enso
%K gorgona island
%K rainfall
%K stream discharge
%K seasonality.
%U http://www.scielo.org.co/scielo.php?script=sci_abstract&pid=S0304-35842009000200002&lng=en&nrm=iso&tlng=en