Rivers Network

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Sahara (3)

Web Mapping development : Rivers Network

Source RAMSAR sites :https://rsis.ramsar.org

Source "Protected Areas" :World Database on Protected Areas (WDPA), a join project of IUCN and UNEP - March 2018

Source Dams Data Base - GRanDv1 : Lehner, B., C. Reidy Liermann, C. Revenga, C. Vorosmarty, B. Fekete, P. Crouzet, P. Doll, M. Endejan, K. Frenken, J. Magome, C. Nilsson, J.C. Robertson, R. Rodel, N. Sindorf, and D. Wisser. 2011. Global Reservoir and Dam Database, Version 1 (GRanDv1): Dams, Revision 01. Palisades, NY: NASA Socioeconomic Data and Applications Center (SEDAC). SEDAC

Source Rainfall :WorldClim Version 2 - Mean average rainfall (mm) -period 1970-2000 resolution 5 minutes (approx 100 km2)

Source Population Data Base: Center for International Earth Science Information Network - CIESIN - Columbia University. 2017. Gridded Population of the World, Version 4 (GPWv4): Population Count, Revision 10. Palisades, NY: NASA Socioeconomic Data and Applications Center (SEDAC) Accessed 23 Feb 2018. These data were treated afterwards by Rivers Network to fit with river basin limits and formated for web maps purposes. The density ranking is based on the DN values from SEDAC data base.

Situé de part et d'autre du 20ème parallèle, le Parc National du Banc d’Arguin (PNBA) longe le littoral mauritanien sur plus de 180 km et couvre une superficie de 12 000 km2 composée à parts presque égales de zones maritimes et terrestres.Cet écosystème côtier exceptionnel est baigné par des remontées d'eaux profondes, froides et riches en éléments nutritifs ("upwelling").

Recent North Africa

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