• E.HEMAVATHY
• DR.R.SHYAMALA

DELINEATION OF GROUNDWATER POTENTIAL ZONES USING REMOTE SENSING AND GIS TECHNIQUES IN VILLUPURAM DISTRICT, TAMIL NADU, INDIA 1E.Hemavathy, 2Dr.R.Shyamala 1 Ph. D (Research Scholar), Department of Geography, Bharathi Women’s College (A), Chennai-108, India 2(Assistant Professor & Head of the Department), Department of Geography, Bharathi Women’s College (A), Chennai-108, India Email: hphemavathy@gmail.com, dhanamr40@gmail.com ABSTRACT The groundwater is the most precious resources around the world and is shrinking day by day. As the demand and needs of population towards water is growing the value of water is felt in all sectors. At the same time, surface water resources are becoming insufficient to fulfill the water demand. So that systematic planning of groundwater improvement using modern technique is fundamental for the proper management and utilization of this precious resource. Assessing the groundwater potential zone is particularly important for the safety of water quality and the management of groundwater system. But still groundwater resources have not yet been properly exploited, keeping this in view, the present study has been undertaken the groundwater potential zones in Villupuram District-Tamil Nadu, by using Remote Sensing and GIS (Geographical Information System). Thematic maps of Geology, Geomorphology, Soil, Slope, Drainage, Drainage Density, Lineament, Lineament Density, and Land Use/Land Cover were used and groundwater potential zones were used and groundwater potential zones were demarcated by Weighted Index Overlay Analysis (WIOA) in Arc GIS 10.6 software. During overlay analysis the ranking has been given for each individual parameter of each thematic map and weights were assigned according to the influence towards groundwater. Finally, four groundwater potential zones were delineated such as very good, good, moderate and poor. From the study it was concluded that groundwater potential zones are helpful for recognition of suitable locations to extract groundwater and for better planning and management. KEYWORDS: Groundwater, Potential zone, Delineated, Suitable, Parameter, Planning.

"DELINEATION OF GROUNDWATER POTENTIAL ZONES USING REMOTE SENSING AND GIS TECHNIQUES IN VILLUPURAM DISTRICT, TAMIL NADU, INDIA", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.7, Issue 7, page no.643-662, July-2020, Available :http://www.jetir.org/papers/JETIR2007383.pdf

"DELINEATION OF GROUNDWATER POTENTIAL ZONES USING REMOTE SENSING AND GIS TECHNIQUES IN VILLUPURAM DISTRICT, TAMIL NADU, INDIA", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.7, Issue 7, page no. pp643-662, July-2020, Available at : http://www.jetir.org/papers/JETIR2007383.pdf