Groundwater recharge assessment using GIS approach in Chiang Mai basin

Chanakan Wisessan * and Pisanu Wongpornchai

Department of Geological Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.
 
International Journal of Science and Research Archive, 2023, 10(01), 538–549.
Article DOI: 10.30574/ijsra.2023.10.1.0777
Publication history: 
Received on 11 August 2023; revised on 22 September 2023; accepted on 25 September 2023
 
Abstract: 
The geographic information system (GIS) techniques were used to groundwater recharge estimation and groundwater recharge potential map in Chiang Mai Basin. The groundwater recharge estimation use slope, rainfall and infiltration factor for calculation. Amount of groundwater recharge are 597.20 – 896.19 m3/year. The study used lithology, land use, lineaments, drainage and slope gradient as influence factors to the groundwater recharge potential. The groundwater potentiality was integrated from thematic maps and derived from the sum of the weighted factor using weight overlay method in the GIS system. Almost of the study area is classified as the high groundwater recharge potential zone. The moderate groundwater recharge potential zone is located in the western part of study area and along with the Ping River.
 
Keywords: 
Ground water; Recharge; GIS; Weight overlay; Chiang Mai
 
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