http://www.sciencedirect.com/science/article/pii/S1674987111001137 |
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Authors: | NS Magesh N Chandrasekar John Prince Soundranayagam |
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Institution: | Centre for Geotechnology, Manonmaniam Sundaranar University, Tirunelveli, Tamil Nadu 627012, India |
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Abstract: | Integration of remote sensing data and the geographical information system (GIS) for the
exploration of groundwater resources has become a breakthrough in the field of groundwater research,
which assists in assessing, monitoring, and conserving groundwater resources. In the present paper,
various groundwater potential zones for the assessment of groundwater availability in Theni district have
been delineated using remote sensing and GIS techniques. Survey of India toposheets and IRS-1C satellite
imageries are used to prepare various thematic layers viz. lithology, slope, land-use, lineament,
drainage, soil, and rainfall were transformed to raster data using feature to raster converter tool in
ArcGIS. The raster maps of these factors are allocated a fixed score and weight computed from multi
influencing factor (MIF) technique. Moreover, each weighted thematic layer is statistically computed
to get the groundwater potential zones. The groundwater potential zones thus obtained were divided into
four categories, viz., very poor, poor, good, and very good zones. The result depicts the groundwater
potential zones in the study area and found to be helpful in better planning and management of groundwater
resources. |
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Keywords: | Groundwater potentialzones India Remote sensing Geographic informationsystem MIF technique |
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