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