Introducing the Namib Desert Playas
The hyper arid Central Namib gravel plains to the north of the Kuiseb River feature a series of playa clusters which are nested in shallow drainage channels. The playas form primarily as the result of groundwater water ponding at bedrock obstructions which produces surface salts such as halite and gypsum on top of thin stream sediments. They differ considerable in size, shape and composition when compared with playas elsewhere in the region such as the Kalahari and Karoo.
KeywordsAerial Photography Drainage Channel Gypsum Crust Silver Lake Moderate Flow Rate
We would like to thank Dr. Mary Seely from the Desert Ecological Research Unit of Namibia for hosting us and Mrs. Conradie from Department of Water Affairs, Windhoek, Namibia who kindly assisted in the analyses of water data. Research funding was provided by the NERC Environment Research Council and the Trapnell Fund. The Namibian Ministry of Environment and Tourism provided research permits. Additional thanks has to go to Mark Barry, Christine Hänel, Dr. Peter and Kathy Jacobsen, Stephanie Wolters and Juliane Zeidler. Final thanks also goes to Dr Kevin White and Andrew Goudie.
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