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UID:pretalx-flowpath-2025-SHNWMY@talks.staging.osgeo.org
DTSTART;TZID=CET:20250612T172000
DTEND;TZID=CET:20250612T173000
DESCRIPTION:Groundwater is the main source of water supply in the Dosso reg
 ion which is located in the southwestern part of the Iullemmeden Basin in 
 Niger republic (West Africa). Despite the arid to semi-arid climate that c
 haracterizes this region\, groundwater recharge is occuring mainly through
  rainfall. This recharge of water which is an essential element in the hyd
 rological cycle is prefentially done according to zones which can also be 
 vulnerable to groundwater pollution. The main objective of this study is t
 o identify and mapped the potential recharge areas. A methodology based on
  a multicriteria analysis integrating GIS and remote sensing was used to m
 ap the potential recharge areas. After processing the Landsat satellite im
 ages of Dosso region\, all the parameters influencing the hydrological rec
 harge processes were obtained and integrated into GIS. \nThese parameters 
 are: soil types\, land cover\, fracture density\, drainage density\, litho
 logy and slope. The map of potential recharge areas obtained shows that th
 e majority of the study areas has great recharge potential. According to t
 his study\, this great potentiality could be linked to: the sandy nature o
 f the soil\, the cultivable areas\, the presence of fractures and density 
 of hydrographic network. This map also confirmed that areas with high rech
 arge potential are located in the beds of ponds and "dallols" (wide dry va
 lleys)\, which thus become more vulnerable areas. This map of potential re
 charge areas constitutes therefore a tool for decision makers.
DTSTAMP:20260427T201515Z
LOCATION:Room R3
SUMMARY:Identification and Mapping of groundwater Potential Recharge Areas 
 in the Dosso region (Southwestern of Niger) by using Multicriteria Analysi
 s Method - ABDOU ALI Ibrahim
URL:https://talks.staging.osgeo.org/flowpath-2025/talk/SHNWMY/
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