Suitable Groundwater Recharge Structures In Noyyal River Basin Coimbatore South Block Using Remote Sensing and GIS

Land and water resources are limited and their wide utilization is imperative, especially for countries like India, due to increase in the population. Any economic activity like agriculture, industries or domestic activities are highly dependent on the water resource. Water is an important resource that needs to be conserved for sustainable development. Management and conservation of water is the need of the day. Water resource development programs are applied generally on watershed basis and thus prioritization is essential for proper planning and management of water resources for sustainable development. In this study made to analyse morphometric parameters of six sub watershed of Noyyal river basin in Coimbatore south block, Coimbatore district Tamilnadu. The main objective of the study is to identify the suitable site and structures for the groundwater recharge. The morphometric parameters like stream ordering, stream length, stream length ratio, and bifurcation ratio, drainage density, stream frequency, form factor, circulatory ratio, and elongated ratio were analyzed to know the characters of the watershed. The suitable site was identified by the integration of the various thematic maps like land use/land cover map, geomorphological map, geology map, slope map, soil map, drainage density map, lineament map based on the weightage for the different features. The suitable structure for groundwater recharge was identified by the integration of thematic map and also by field visit.