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INTERNATIONAL JOURNAL OF ENGINEERING DEVELOPMENT AND RESEARCH
(International Peer Reviewed,Refereed, Indexed, Citation Open Access Journal)
ISSN: 2321-9939 | ESTD Year: 2013

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Paper Title
GIS Based Landslide Hazard Zonetion of Guwahati Region
Authors
  Suman Das,  Ranjit Kumar Ray,  Gourav Nain

Abstract
Landslide is generally defined as a wide variety of down slope movements of earth materials that result in the perceptible downward and outward movement of rocks, soil, vegetation, artificial fills or combination of all these under the influence of gravitational force. Landslide, one of the major geoenvironmental hazards has annually affected the Guwahati city, causing huge damage to life and property. The present study is an attempt to classify the settlement areas of Guwahati city based on its slope angle to identify the potential landslide risk zones. The study utilized different types of data including Survey of India topographic maps, geological (lithological and structural) maps, IRS-1B and -1D multispectral and field observations. The processing of multi-geodatasets was carried out in a raster GIS environment. The various data layers generated and co-registered were: landuse/landcover, lithology, map of drainage, slope angle and relative relief. Data integration was carried out using the arc gis through overlay analysis to prepare the landslide risk zonation map. It is interpreted that the distribution of landslides is largely governed by a combination of geoenvironmental conditions like presence of massive crystalline rocks is highly susceptible to seepage pressure, barren or less-vegetated areas and Toe cutting of the natural slopes for construction of dwelling houses.

Keywords- Landslide, Hazard, Risk, Thematic Map
Publication Details
Unique Identification Number - IJEDR1404100
Page Number(s) - 4005-4014
Pubished in - Volume 2 | Issue 4 | Dec 2014
DOI (Digital Object Identifier) -   
Publisher - IJEDR (ISSN - 2321-9939)
Cite this Article
  Suman Das,  Ranjit Kumar Ray,  Gourav Nain,   "GIS Based Landslide Hazard Zonetion of Guwahati Region", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.2, Issue 4, pp.4005-4014, Dec 2014, Available at :http://www.ijedr.org/papers/IJEDR1404100.pdf
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