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River Basin

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The highlands of Lesotho, the source of the Orange-Senqu River.
Source:ŠiStockphoto/Coenders 2006
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Augrabies Falls, on the lower reaches of the Orange-Senqu River, South Africa.
Source:Vogel 2009
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Irrigated agriculture is the single largest water user in the basin.
Source:Vogel 2009
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Golden Gate Park, South Africa.
Source:Hughes 2004
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Longitudinal profile of the main-stem of the Orange-Senqu River.
Source:Hatfield 2009
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Map of relief in the Orange-Senqu River basin.
Source:Source: SRTM elevation data - CGIAR 2008
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Makhaleng River Gorges in the Highlands of Lesotho.
Source:Pecher 2003
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Pedosphere, the intersection between the Atmosphere, Biosphere, Hydrosphere and Lithosphere.
Source:after Noorallah 2009; Mattson 1938
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Lightning during a storm on the Lower Orange River.
Source:Kruchem 2011
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The climate of Orange-Senqu River basin varies from snow in the winter in Lesotho...
Source:Lesotho Water Commission 2008
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Sunset in the Kalahari.
Source:iStockphoto/Sproetniek 2009
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The Hydrologic (Water) Cycle.
Source:Federal Interagency Stream Restoration Working Group 1998
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The climate of the Orange-Senqu River basin is highly variable.
Source:Vogel 2009
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An example of a B climate type - Sossusvlei Namibia.
Source:Huber 2008
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An example of a C climate type - Lesotho highlands.
Source:Lesotho Water Commission 2003
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Southern Botswana receives very little annual rainfall.
Source:Department of Water Affairs Botswana 2001
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Dams such as Vanderkloof can provide a buffer in drought conditions.
Source:Pyke 2003
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The altitude and mountains of the Lesotho Highlands ensure a temperate climate.
Source:Lesotho Water Commission 2009
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The arid Nama Karoo.
Source:DRFN 2004
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Climate change will alter the availability of water.
Source:Vogel 2009
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