An integrated approach for mapping groundwater potential applying geospatial and MIF techniques in the semiarid region
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Geospatial methods play an important role in the identification, monitoring, assessment, and conservation of groundwater resources. An integrated approach combining the geospatial techniques and multi-influencing factors (MIF) was adapted for the determination of potential groundwater zone in the Purulia District of West Bengal, Eastern India. The present groundwater is underexploited for agricultural and other activities. This study would also benefit in identifying the artificial recharge zone for further research and developmental activity in the region. The important parameters including slope, landuse/cover, lineament, drainage, geology, and soil affecting potential groundwater occurrence were generated from Topo Maps, Landsat remote sensing imagery, and various ancillary data. Various thematic layers were allocated a fixed score as weightage using MIF technique. Thereafter, the weighted layers were statistically computed in the overlay analysis to generate the groundwater prospect map. The groundwater potential map demonstrated five zones, viz. very good (13.8%), good (34.9%), moderate (48.3%), poor (2.8%), and very poor (0.2%). The findings of the research study would enable to carry out future research and propose effective planning and management of groundwater development.
KeywordsGeospatial technologies Groundwater potential mapping MIF Water resource management
Authors are grateful to the Geological Survey of India (GSI), Survey of India, Central Groundwater Board (CGWB), National Bureau of Soil Survey and Landuse Planning, Global Land Cover Facility (GLCF) for providing the required data for the present research. We thank the editor and reviewers for reviewing the manuscript and for their valuable comments.
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