The Okavango River and Delta comprise a phenomenon virtually unique in the world. The river, with an average annual inflow of 7,500Mm3 per annum, terminates in the semi-arid Kalahari in a delta with an area of 30,000km2. Virtually the entire inflow evaporates and transpires from the perennial and seasonal swamps, while a small percentage infiltrates to ground water.
The Okavango Delta possesses remarkable biodiversity, and in 1997 was listed as a Ramsar site. An Integrated Hydrologic Model of the delta has been established using MIKE SHE, with integrated layers representing the atmospheric waters, surface waters (channels and swamps), and ground waters (unsaturated and saturated).
A presentation of the project is available here