Remote Sensing and GIS for Groundwater Potential Zones Ghagger Watershed, Himachal Pradesh
Groundwater is often referred to as the ‘hidden’ component of the hydrological cycle because it is not directly observable. However, in many areas, the groundwater resource is huge, and its occurrence and hydrological significance cannot be neglected in water management and planning. Identification of groundwater potential zone is main objective of present work for Ghagger Watershed, Himachal Pradesh. GIS and Remote Sensing is used for identification of groundwater potential zones in the study area. Landsat 8 satellite data is used to generate land use and land cover maps as well as your Geomorphological maps for the study area. Soil maps are used as available. Digital elevation model are acquired using CartoSAT-1 satellite Data. Weighted overlay method of raster dataset for analysis is used to identify groundwater potential zone of study area. The layers landuse, Elevation, slope, geomorphology, rainfall pattern, drainage pattern and soil were considered and the influence and scale values set to different feature according to their importance in groundwater potential areas. After analysis, five zones of groundwater potential are generated as, very poor, poor, moderate, Good and very good were identified for the study area. It estimated is for study area that 49% and 29% part is lies in moderate to good zone of groundwater.
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