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Physiograpical, morphological and hydrological parameters were determined for the Cali river watershed (123 Km²), located in the eastern side of the western mountains chain, in the municipality Cali, Valle (Colombia). The water balance was estimated in the watershed of its main tributary, the Pichindé river (62.9 Km²), as well as the Cali river watershed. Three methods were tested to determine the potential evapotranspiration (Penman, Christiansen and Hargreaves). Hargreaves method was selected due it had the best adjusment for the water balance. The mean rain was determined using isohyetals, Thiessen and arithmetic mean methods, being the isohyetals method the appropiate for the area. The water balance was determined combining the variables correspondents to rain, evapotranspiration and runoff to analize the spatial and temporal dinamic of the water balance.

Alvaro Hernán Montoya R.

Ingeniero Agrícola, M.sC. Ingeniría Civil, Area de Recursos Hidráulicos de la Universidad del Valle. colombia

Yesid Carvajal Escobar

Ingeniero Agrícola, M.sC.Suelos y Aguas de la Universidad Nacional de Colombia. Profesor del  Departamento de Mecánica de Fluidos y Ciencias Térmicas - Facultad de Ingeniería de la Universidad del Valle, Colombia.
1.
Montoya R. AH, Carvajal Escobar Y. Caracterización Fisiográfica e Hidrológica: Cuenca Hidrográfica del Río Cauca. inycomp [Internet]. 1998 May 6 [cited 2024 Dec. 22];1(2):33-40. Available from: https://revistaingenieria.univalle.edu.co/index.php/ingenieria_y_competitividad/article/view/2356