Ganapathy Ganapathy Pattukandan

Centre for Disaster Mitigation and Management

Vellore Campus

Rajawat A.S.

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

Natural Hazards

Landslide Hazard Zonation (LSH) maps play a key role in landuse planning particularly in landslide prone areas. LSH mapping is globally accepted one for analyzing the area for landslide susceptibility. Different approaches were followed by many researchers in India to prepare landslide hazard zonation mapping depending upon their need and requirement. The Nilgiris district in Western Ghats of India is one of the severe to high landslide hazard prone areas of India. Many agencies have carried out research on LSH mapping for the Nilgiris district with different scales. A systematic study of inventory and zonation was 122carried out in 1980&rsquo;s by government agencies. However there is no proper updation or documentation on landslides after 1980&rsquo;s in the district The purpose of this paper is to review the existing landslide-related studies in the district of The Nilgiris and review the district&rsquo;s existing landslide hazard map with updated information. Landslide hazard maps in The Nilgiris were compiled in the GIS platform from various authenticated sources. Data on landslides from 1824 to 2014 were collected and a spatial database on landslides was created. A detailed inventory was analyzed and used for revision of the district&rsquo;s landslide hazard impact on the 2009 landslides.. Based on the landslide inventory and densely populated areas and repeated landslides at the same locations, the most landslide hazard areas were identified.

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Geoenvironmental Disasters

Evaluation of landslide hazard and its impacts on hilly environment of the Nilgiris District - a geospatial approach

The present paper aims at to produce the building vulnerability and its spatial distribution in mountainous regions of the Nilgiris District in the Western Ghats, India. The landslide-susceptible areas were identified based on the existing landslide-susceptible maps. The landslide-prone slope was identified based on the historical and recent landslide information’s collected from various authenticated sources as well as the field investigations made on the recent landslides. The high-to-severe landslide hazard-prone areas were selected for the present study of building vulnerability analysis. The areas were divided into ten segments based on the landslide inventory, built-up areas, and transportation corridors in the vicinity of landslide locations. Building foot print map was prepared for each segments using ArcGIS software visual interpretation for 1627 buildings and infrastructures. Different thematic layers viz, building type/material, surrounding wall, sloping side details, warning, and number of floors which contribute to landslide vulnerability in vector formats are used for the present study. Using the formula proposed by Papathoma-Köhle et al. (Nat Hazards Earth Syst Sci 7:765–779, 2007) the vulnerability score were calculated by scripting in ArcGIS software. Based on the vulnerability score, the buildings were grouped under three categories viz, low, medium, and high vulnerability. The spatial distribution of vulnerability of buildings was prepared and presented. The present study can be useful data for preparation of regional landuse plan as well as evacuation plans and warning systems to safeguard measure for population living in the vulnerable buildings in The Nilgiris District of Western Ghats in India. © 2016, Springer Science+Business Media Dordrecht.

Use of GIS in assessing building vulnerability for landslide hazard in The Nilgiris, Western Ghats, India

The Nilgiris district in the Tamilnadu state of India is frequented by many landslides in the recent past. Though many of these landslides are rainfall-induced, there is a need to evaluate the potential of earthquake-induced landslides considering seismicity of the region. In this paper, deterministic seismic hazard of Nilgiris is carried out by considering a study area of 350 km radius around Nilgiris. Seismotectonic map of the Nilgiris, showing the details of faults and past earthquakes, is prepared. The peak ground acceleration (PGA) at bed rock level and response spectrum are evaluated. The potential sources for Nilgiris are Moyar and Bhavani shears. The PGA at bed rock level is 0.156 g corresponding to maximum considered earthquake 6.8. Ground response analysis for seven sites, in the Nilgiris, is carried out by one-dimensional equivalent linear method using SHAKE 2000 program after considering the effect of topography. PGA of surface motion got amplified to 0.64 g in Coonoor site and 0.44 g in Ooty site compared to 0.39 g of the input motion. The bracketed duration of time history of surface acceleration has increased to 20 s in Coonoor site and 18 s in Ooty site compared to that of 8 s of input motion. Results from seismic displacement analysis using Newmark’s method revealed that out of seven sites investigated, five sites have moderate seismic landslide hazard and two sites (Coonoor and Ooty) have high hazard. © 2015, Springer Science+Business Media Dordrecht.

Evaluation of seismic hazard and potential of earthquake-induced landslides of the Nilgiris, India

Journal of Environmental Biology

Assessment of air quality index of urban area and epidemiological investigations in Chennai

International Journal of Advances in Scientific Research and Engineering

Comparative Analysis of RCC and Composite Hospital Building Subjected to Seismic Forces by Using National Disaster Management Authority of India Guidelines Comparative Analysis of RCC and Composite Hospital Building Subjected to Seismic Forces by Using National Disaster Management Authority of India Guidelines

International Journal of Disaster Risk Reduction

A discussion of resilience and sustainability: Land use planning recovery from the Canterbury earthquake sequence, New Zealand

Understanding Global Security

The International Decade for Natural Disaster Reduction (IDNDR)

Landslide susceptibility mapping using the weight of evidence method in the Tinau watershed, Nepal

Use of hazard and vulnerability maps for landslide planning scenarios: a case study of the Nilgiris, India

Journal	Data powered by TypesetNatural Hazards
Publisher	Data powered by TypesetSpringer Science and Business Media LLC
ISSN	0921-030X
Open Access	0