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Impacts of ENSO on Costa Rica


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Impacts of ENSO on Floods in Costa Rica. (Upper) The temporal distribution of the annual number of flood events in excess of levels equivalent to the respective 1.2 year return period annual floods, on the Candelaria and Sarapiquí rivers during years of warm and cold phases of ENSO. (Lower) Historic monthly distributions of the average number of tropical storms in the Caribbean and Gulf of Mexico (left) and cold fronts entering the southern Caribbean (right) under both phases of ENSO.  (From Marvin Quesada [Departamento de Ciencias Sociales, Universidad de Costa Rica sede Occidente, San Ramón, Costa Rica] and Peter Waylen, 2002. In review at Ingeniería Hidráulica en Mexico.)