Landslide mapping, monitoring and modeling techniques: A new approach using DOFS

Landslide is a very common natural hazard particularly in the hilly areas. Till now landslide causes a loss of around 1000 million lives and also 4 billion of property. Asia witnesses 220 landslides in the past century. This paper will focus on the various techniques for mapping, monitoring and modeling of landside for prior warning of landslide in landslide prone area. This paper also gives a brief description on the landslide monitoring using point sensors and optical sensors as a whole and its comparison with the conventional methods. The landslide mapping, monitoring and modeling schemes in reference to Guwahati city are also discussed briefly.