IJIRST (International Journal for Innovative Research in Science & Technology)ISSN (online) : 2349-6010

 International Journal for Innovative Research in Science & Technology

Landslide Hazard Zonation Using Geospatial Technology In Parts Of Kodaikanal Hill Region, Tamilnadu


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International Journal for Innovative Research in Science & Technology
Volume 1 Issue - 1
Year of Publication : 2014
Authors : RAJAMOHAN M R ; Anand B; Balakrishnan P; Praveenraj Durai; JoyJohnson A

BibTeX:

@article{IJIRSTV1I1005,
     title={Landslide Hazard Zonation Using Geospatial Technology In Parts Of Kodaikanal Hill Region, Tamilnadu},
     author={RAJAMOHAN M R, Anand B, Balakrishnan P, Praveenraj Durai and JoyJohnson A},
     journal={International Journal for Innovative Research in Science & Technology},
     volume={1},
     number={1},
     pages={11--17},
     year={},
     url={http://www.ijirst.org/articles/IJIRSTV1I1005.pdf},
     publisher={IJIRST (International Journal for Innovative Research in Science & Technology)},
}



Abstract:

A methodology for landslide hazard zonation mapping using an integrated remote sensing and GIS approach is presented. Landslides often affect Kodaikanal, a well-known tourist hill resort in south India, The hills in Kodaikanal have a fairly thick weathered overburden that tend to slide during heavy rainfall. Therefore the frequency of landslides in these areas is higher. This study represents the causative factors of the Kodaikanal landslides. Here The landslide inventory map shows that, during the past 10 years, out of 66 landslide incidences, 35 incidences were fallen along the Vatlagundu-Kodaikanal-Palani Ghat roads. Secondly thematic maps were prepared on the various causative factors that is geosystem parameters like geology, lineaments/faults, geomorphology, land use/land cover, drainage system, slope, etc. High resolution Geo-eye satellite data, LANDSAT-TM and ASTER images have been used to generate a few of these thematic maps. To identify the vulnerable areas, the above-mentioned parameters were analyzed in a GIS by assigning appropriate ranks and weights. The result is a landslide hazard zonation map showing regions with varying degrees of vulnerability to landslides. Detailed landslide vulnerability analysis along road corridor. This prepared hazard zonation map will enable to propose and implement suitable mitigating measures, thus preventing loss of life and property in the Kodaikanal hills. An additional study made over landslide vulnerability analysis along road corridor region, using lineament and drainage maps. Though the heavy rainfall is triggering landslides in western-Ghat region, the other causative factors in inducing landslides are anthropogenic activities, geosystem parameters like structure, geomorphology, land use practices, drainage system, etc.


Keywords:

Geomorphology, Remote Sensing, Zonation Mapping


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