A Comparison of Landslide Susceptibility Zonation of Poonjar Sub-watershed, Kerala by Certainty Factor and Physically Based Methods
Keywords:
landslide, certainty factor SINMAP, Zonation, GISAbstract
Landslides are one of the most devastating natural disasters which may lead to loss of life and property. Western Ghats region of Southern India is identified to be one of the main landslide susceptible area by many researchers in the past. After identifying the slope angle, soil thickness, and the geotechnical properties cohesion, friction, density and permeability as the major causative factors, this study presents the popular physically based tool namely Stability Index and Mapping (SINMAP) and a bi-variate statistical method namely Certainty Factor (CF) for the Landslide Susceptibility Zonation (LSZ) of Poonjar sub-watershed in Western Ghats. Single calibration mode is invoked in SINMAP by considering land use type as the theme in the present study to prepare the LSZ map. The thematic layers of different causative factors are prepared and subsequently the landslide inventory map is overlaid upon them to get the landslide density of the whole area and that of each layer and the associated classes. Then the weights for each class are calculated by CF method and addition of weighted layers is made in ArcGIS platform to get the final landslide susceptibility map for the study area. Finally the map is reclassified and divided to get the LSZ map of the study area. A comparison of zonation maps shows that both the methods are successful in capturing the landslide information in moderately susceptible areas of Poonjar sub-watershed.
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References
J. Remondo, A. Gonzalez-Diez, and J. Ramon, “Landslide susceptibility models using spatial data analysis techniques: A case study from the lower Dehavalley, Guipuzloa (spain),†Natural Hazards, vol. 30, pp. 267-269, 2003
A. Carrara, and F. Guzzetti, “Use of GIS technology in the prediction and monitoring of landslide hazard,†Natural Hazards, vol. 20, pp. 117– 135, 1999
A. Carrara, M. Cardinali, R. Detti, F. Guzzetti, V Pasqui, P Reichenbach, “GIS techniques and statistical models in evaluating landslide hazard,†Earth Surface Processes and Landforms, vol. 16, pp. 427– 445, 1991
T. Fernandez, C. Irigaray, EI. Hamdouni and J. Chacon, “Methodology for Landslide susceptibility Mapping by means of a GIS Application to the Contraviesa Area (Granada,Spain),†Natural Hazards, vol. 30, pp. 297-308, 1991
P. Aleotti, and R. Chowdhury, “Landslide Hazard Assessment : Summary review and new perspectives.†Bulletin of Engineering Geology and. Environment, vol. 58, pp. 21-24 1999
S. Lee, U. Chawe and K. Min, “ Landslide susceptibility Mapping by correlation between ntopography and geological structure the Janhung Area, Korea,†Geomorphology, vol. 46, pp. 49-162, 1999
M.L. Suzen, and V. Doyuran, “Datadriven bivariate landslide Susceptibility assessment using Geographical information system, a method and application to Asarsuyu catchment, Turkey,†Engineering Geology vol. 71, pp. 303-321, 2004
H. Vijith, and G. Madhu “Estimating potential landslide sites of an upland sub-watershed in Western Ghats of Kerala (India) through frequency ratio and GISâ€, Environmental Geology. vol. 55, no. 7, 1397-1405, 2008
E.H. Shortliffe, and G.G. Buchanan. “A model of inexact reasoning in medicine,†Mathematical Biosciences, vol. 23, pp. 351– 379, 1975
H. Vijith and G. Madhu. Application of GIS and Frequency ratio model in mapping the potential surface failure sites in the Poonjar sub-watershed of Meenachil River in Western Ghats of Kerala (India), Journal of the Indian Society of Remote sensing, pp. 275-285, 2007
D. Heckerman “Probabilistic interpretation of MYCIN’s certainty factors,†In: Kanal, L.N., Lemmer, J.F. (Eds.), Uncertainty in Artificial Intelligence. Elsevier, New York, pp. 298– 311.
. C.F Chung and A.G Fabbri "Probabilistic prediction models for landslide hazard mappingâ€. Photogrammetric Engineering and Remote Sensing, vol. 65 (12), pp. 1388–1399, 1999
E, Binaghi, L, Luzi, and P, Madella. “Slope instability zonation: a comparison between certainty factor and fuzzy Dempster – Shafer approachesâ€. Natural Hazards, vol. 17, pp.77– 97, 1998
R.T. Pack, D.G. Tarboton and C.N. Goodwin. “The SINMAP approach to terrain stability mappingâ€. Proceedings of 8th Congress of the International Association of Engineering Geology, Vancouver, British Columbia, Canada, pp. 1157– 1165, 1998.
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