Abstract
A simple mathematical model of the Okavango Swamp in northern Botswana has been developed to simulate the hydrologic conditions in the swamp. The model consists of a number of cells along the flow line for each distributary system. Each cell is represented by a reservoir having a triangular cross section. Outflow from cells is proportional to the volume of the cells, corrected for dead storage when necessary. Water balance of each cell is calculated starting from the cell upstream and the outflow is distributed when there are more than one cell downstream. The model is calibrated using measured discharges and water levels in the swamp and using the satellite imagery. The mathematical model clearly shows changes in the flow distribution in the Okavango Swamp, and can predict the effect of man made changes in the inflow and in the swamp. Finally it shows what type of data is required to increase the information concerning the swamp.
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