Topographic Data Base For Landslides Assessment using GIS in Between Mettupalayam-Udhagamandalam Highway, South India
Arunkumar. M1, Gurugnanarn. B2, Venkatraman. AT.V.R3

1Arunkumar M, Centre for Applied Geology, Gandhigram Rural Institute  Deemed University, Gandhigram (Tamil Nadu), India.
2Gurugnanarn B, Centre for Applied Geology, Gandhigram Rural Institute Deemed University, Gandhigram (Tamil Nadu), India.
3Venkatraman AT.V.R, Centre for Applied Geology, Gandhigram Rural Institute Deemed University, Gandhigram (Tamil Nadu), India.
Manuscript received on 15 April 2013 | Revised Manuscript received on 22 April 2013 | Manuscript Published on 30 April 2013 | PP: 302-306 | Volume-2 Issue-5, April 2013 | Retrieval Number: E0743042413/13©BEIESP
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Abstract: Landslide is a common geo-hazard, can result in huge economic losses and enormous casualties in mountainous regions. Analysis of Landslide is a complex which involving multiples of factors and it need to be studied systematically in order to locate the prone zones for landslides. The topographic features play an important role in deciding the areas prone to landslides. In this study, an attempt has been made to derive the landslide cause behind topographic features such as Drainage, Slope and Geology of Mettupalayam- Udhagamandalam road sector lengths of 47 Kilometers. The Survey of India toposheets on 1: 50000 scales were used to extract contours in 20m intervals. The all mentioned parameters were analyzed in GIS by assigning weightages and ranks to prepare the landslide Vulnerability zone map for the study area. The landslide vulnerability map indicates the whole study area which has been divided into three zones as High, Moderate and Low Landslide Vulnerability Zone. Through the landslide hazard zonation map, it can finale that the low landslide zones are the prior for higher landslide vulnerability in the study area. This research would be a basis of landslide vulnerability and hazard assessment.
Keywords: Landslides, Landslide Vulnerable Zone, GIS, Hazard Assessment.

Scope of the Article: Highways