History of precipitation behaviour in the middle and high Tunjuelito river basin and analysis of the events happened in may and june, 2002

Abstract

With the purpose of increasing the understanding about precipitation behaviour in the middle and high parts of the river basin of Tunjuelito river, inBogotá, Cundinamarca and contributing to the necessary technical information to measure up to what extent rain probably caused the river to overflow recently, at the end of May and beginning of June, 2002, a statistical analysis of time series (1980-2002) on this parameter was made. On the other hand, a historical summary of catastrophic events of zone overflow and the relationship between precipitation variability in the area and the presence of the El Niño/La Niña Phenomenon were studied, taking in to consideration that an important indicator these phenomena is the Sea Surface Temperature (SST), measured in the Tropical Pacific Ocean, in the region Niño 3-4