Effectiveness of basin morphometry, remote sensing, and applied geosciences on groundwater recharge potential mapping： a comparative study within a small watershed

作     者：Suvendu ROY Abhay Sankar SAHU 

作者机构：Department of Geography University of Kalyani Kalyani Nadia-741235 West Bengal India 

出 版 物：《Frontiers of Earth Science》 (地球科学前沿（英文版）)

年 卷 期：2016年第10卷第2期

页      面：274-291页

核心收录：

学科分类：12[管理学] 1201[管理学-管理科学与工程(可授管理学、工学学位)] 081803[工学-地质工程] 08[工学] 0818[工学-地质资源与地质工程] 

基　　金：University Grand Commission, New Delhi, India [F.15-6] University Grand Commission, New Delhi, India [UGC] [3224/(NET-DEC.2012)] 

主　　题：groundwater basin morphometry SCS curvenumber geosciences geoinforrnatics 

摘      要：A multidisciplinary approach using the inte- grated field of geosciences （e.g., geomorphology, geotec- tonics, geophysics, and hydrology） is established to conduct groundwater recharge potential mapping of the Kunur River Basin, India. The relative mean error （RME） calculation of the results of three applied techniques and water table data from twenty-four observation wells in the basin over the 2000-2010 period are presented. Nine sub- basins were identified and ranked for the RME calculation, where the observation wells-based ranking was taken as standard order for comparison. A linear model has been developed using six factors （drainage density, surface slope, ruggedness index, lineament density, Bouguer gravity anomaly, and potential maximum water retention capacity） and a grid-wise weighted index. In a separate comparative approach, the sub-basin and grid-wise analyses have been conducted to identify the suitable spatial unit for watershed level hydrological modeling.