Integrated remote sensing and GIS study for hydrogeomorphological mapping and delineation of groundwater potential zones in Khallikote block,Ganjam district,Orissa |
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| Authors: | C Mohanty S C Behera |
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| Institution: | (1) National Geophysical Research Institute, Hyderabad, 500 007, Andhra Pradesh, India; |
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| Abstract: | The present study attempts to delineate different groundwater potential units using remote sensing and geographic information
system (GIS) in Khallikote block of Ganjam disrict, Orissa. Thematic maps of geology, geomorphology, land use and land cover,
drainage density, lineament density, slope and DEM (digital elevation model) were prepared using the Landsat Thematic Mapper
data in 3 spectral bands, band 7 (mid-infrared light), band 4 (near-infrared light), Band 2 (visible green light). Relationship
of each layer to the groundwater regime has been evaluated through detailed analysis of the individual hydrological parameters.
The SMCE (Spatial Multi-Criteria Evaluation) module in ILWIS (Integrated Land and Water Information System) supports the decision-making
process for evaluating the ground water potential zones in the area. The study shows that more than 70% of the block is covered
by medium to excellent category having good ground water potential. |
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