One decade of rainfall precipitation variation with landslides in udhagamandalam – mettupalayam highway, tamilnadu

Author: 
Arunkumar.M, Gurugnanam, G, Isai, R and Suresh, M

The paper presents correlation between the rainfalls Precipitation variation with existing landslides was carried out. The Precipitation data were collected from IWS (Institution of Water Studies ) and reconstructed for annual and season wise for the period from 2003 to 2012. The data were interpreted through graphical methods. The interpreted rainfall data were shows that higher amount of rainfall variance was noticed in Northeast & Southwest Monsoon season. It clearly reveals that higher rainfalls and higher number of landslides were noticed in the year of 2009 and lower rainfall and lower number of landslides were noticed in the year of 2003. Most of the landslides were occurring in the heavy rainfall season that rainfall is the leading triggering factor for landslides.

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