Meteorology and Hydrology of the Lake Victoria Basin: Kenyan Sector

Project: Climate Service for Infrastructure

Theme: Climate Change

Goal: Climate Change

Program: Basin-wide Program

Ownerships: Nile Basin Initiative

Authors: F. Sangale1*, H. Njuguna2, J.O. Okungu3, J.O.Z. Abuodha4 & R. E. Hecky5 ,
Date Of Publication:01 Jan 2006
Accessibility :Open Access
Language:English
Type:E-flow Study
Abstract:This study reports of the results of extensive field monitoring of river flows and lake levels, rainfall and evaporation. The study’s aim was to elucidate main trends and periods of meteorology and hydrology as revealed by time series of rainfall, evaporation, river discharge and lake levels and which could be used as input towards computation of nutrient and sediment load introduced into Lake Victoria. Hydro-metrological data for the period running 1950-2004 were analysed and form the basis for computing the pollution loadings (catchment and atmospheric) into the lake and as well as calculation of the lake water balance. Continuous rainfall and evaporation records were applied and data gaps filled were necessary. Full records of land discharges were obtained from rainfall records using the NAM model. Model performance was evaluated on the ability to simulate the total flow for catchments, rather than the peak and minimum flows, for pollution estimation. The implication of the results in the eutrophication related processes in the lake are also discussed in this report.
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