Estudio probabilístico de precipitación y caudal en la cuenca hidrográfica del río Cali

The probabilistic behavior of the precipitation and the flow in the Cali River catchment (123 km2) was analyzed. The attained curves with the Weibull probabilistic method followed a very good adjustment. The catchment shows a medium precipitation of 2046 mm that varies from 3600 (High Zone) to 1200 mm (Low zone). The annual superficial flow was about 3.94 m3S-1 with monthly variations between 2.32 (july) and 6.09 m3S-1 (may). The extreme flows on the Cali River have varied from 0.20 (dry periods), to 193.0 m3 S-1I (intense rainfall seasons), The Pichindé River, its main affluent, have showed variations between 0.17 to 79.9 m3 S-1. Between 1990 and 1993, the annual medium flow felt clown 26% with respect to the historical media. During years of incidence of the "Niño" phenomenon have occurred the most intensive events: between 52 % and 84 % of the maximum precipitations in 24 hours higher mean 60 mm, the maximum (193.0) and the minimum flow (0.20 m3 S1); the "Niño" 1991-92 was more incidence on the availability of water in the last 43 years: it produced a reduction of 36 % (1311 mm) in the annual precipitation, and of 50 % (1.94 m3 S-1) in the medium annual flow.

• Autores: Carvajal E., Yesid; Marulanda V., Edgar
• Tipo de recurso: Article of journal
• Fecha de publicación: 1995
• Institución: Universidad Nacional de Colombia
• Repositorio: Universidad Nacional de Colombia
• Idioma: spa
• OAI Identifier: oai:repositorio.unal.edu.co:unal/29538
• Acceso en línea: https://repositorio.unal.edu.co/handle/unal/29538; http://bdigital.unal.edu.co/19586/
• Palabra clave: 63 Agricultura y tecnologías relacionadas / Agriculture; precipitación; caudal; fenómeno del Niño; cuenca hidrográfica; precipitation; flow; river catchment; incidence of the Niño
• Rights: openAccess
• License: Atribución-NoComercial 4.0 Internacional