Delineation of groundwater potential zones using remote sensing and Geographic Information Systems(GIS)in Kadaladi region,Southern India  

作　　者：Stephen Pitchaimani V Narayanan MSS Abishek RS Aswin SK Jerin Joe RJ 

机构地区：[1]PG and Research Department of Geology,V.O.Chidambaram College,Thoothukudi 628008,India [2]Research Scholar,Manonmaniam Sundaranar University,Tirunelveli 627012,India

出　　处：《Journal of Groundwater Science and Engineering》2024年第2期147-160,共14页地下水科学与工程（英文版）

摘　　要：The primary objective of this research is to delineate potential groundwater recharge zones in the Kadaladi taluk of Ramanathapuram,Tamil Nadu,India,using a combination of remote sensing and Geographic Information Systems(GIS)with the Analytical Hierarchical Process(AHP).Various factors such as geology,geomorphology,soil,drainage,density,lineament density,slope,rainfall were analyzed at a specific scale.Thematic layers were evaluated for quality and relevance using Saaty's scale,and then inte-grated using the weighted linear combination technique.The weights assigned to each layer and features were standardized using AHP and the Eigen vector technique,resulting in the final groundwater potential zone map.The AHP method was used to normalize the scores following the assignment of weights to each criterion or factor based on Saaty's 9-point scale.Pair-wise matrix analysis was utilized to calculate the geometric mean and normalized weight for various parameters.The groundwater recharge potential zone map was created by mathematically overlaying the normalized weighted layers.Thematic layers indicating major elements influencing groundwater occurrence and recharge were derived from satellite images.2 Results indicate that approximately 21.8 km of the total area exhibits high potential for groundwater recharge.Groundwater recharge is viable in areas with moderate slopes,particularly in the central and southeastern regions.

关 键 词：GROUNDWATER Satellite image Remote sensing GIS techniques Analytical Hierarchy Process(AHP) 

分 类 号：P641[天文地球—地质矿产勘探]