Vol. 9, Issue 12, Part A (2023)

Water is an essential natural resource for preserving and conserving the surrounding environment and ecosystem for all forms of life. The rudimentary element for watershed operations is the suitable management of precipitation by following the process of the way of collection, storage, and environment-friendly utilization of runoff water and recharge of the groundwater. This paper intends is to find the appropriate zones for water harvesting structures in the Uttarkashi District, Uttarakhand using Geospatial technology along with suitable decision-making models. For this study, models like Multi-Criteria Evaluation (MCE) and OPTRAM model combining remote sensing and GIS have been implemented in the establishment of appropriate zones for water harvesting structures. Criteria layers that have been considered for multi-criteria comparison were soil texture, slope, soil Moisture (2016-2022), land use/cover, soil map, and drainage network. A dummy soil conservation model was used to estimate the runoff depth for finding out the characteristics of the vicinity area. The results achieved using RS & GIS and the decision-making model were finally clubbed with Hierarchy Processes (AHP) for watershed delineation.