T. V. Ramachandra *, Senior Member, IEEE, Anindita Dasgupta, Uttam Kumar, Student Member, IEEE,
Bharath H Aithal, Student Member, IEEE, P. G. Diwakar and N. V. Joshi
Landslides occur when masses of rock, earth or debris move down a slope. Mudslides, debris flows or mudflows, are common type of fast-moving landslides that tend to flow in channels. These are caused by disturbances in the natural stability of a slope, which are triggered by high intensity rains. The primary criteria that influence landslides are precipitation intensity, slope, soil type, elevation, vegetation cover and LC type.
In this paper, LU analyses along with forest fragmentation were carried out for five perennial watersheds of Uttara Kannada district. SVM was used to generate probable landslide map. By overlaying the fragmentation map on the landslide probable map, past and future occurrences of landslides can be visualised. It is also evident that degradation of forest and LC change is an important factor that is not only responsible for triggering landslides, but also a major contributor to global warming, climate change, natural resource depletion and consequent detrimental effect on our environment.
Citation: T. V. Ramachandra, Anindita Dasgupta, Uttam Kumar, Bharath H Aithal, P. G. Diwakar and N. V. Joshi , 2010, Spatio-temporal landscape modelling for natural hazard vulnerability analysis in select watersheds of Central Western Ghats. ISTC/BES/TVR/205 (2007-2010), pp. 192 - 202.
* T. V. Ramachandra is with the Centre for Ecological Sciences, Centre for Sustainable Technologies and Centre for Infrastructure, Sustainable Transport and Urban Planning, Indian Institute of Science, Bangalore, India.
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Anindita Dasgupta is with the Centre for Ecological Sciences, Indian Institute of Science, Bangalore, India.
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Uttam Kumar is with the Department of Management Studies and Centre for Sustainable Technologies, Indian Institute of Science, Bangalore, India. (e-mail: email@example.com)
Bharath H Aithal is with the Centre for Sustainable Technologies, Indian Institute of Science, Bangalore, India.
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P. G. Diwakar is with the RRSSC, Indian Space Research Organization, Department of Space, Government of India, Banashanakari, Bangalore 70. (e-mail: email@example.com)
N. V. Joshi is with the Centre for Ecological Sciences, Indian Institute of Science, Bangalore, India
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