LANDSLIDE SUSCEPTIBILITY MAPPING BY GIS-BASED QUALITATIVE WEIGHTING PROCEDURE IN CORINTH AREA


Published: Jul 23, 2018
M. Foumelis
E. Lekkas
I. Parcharidis
Abstract

Landslide susceptibility mapping refers to a division of the land into zones of varying degree of stability based on an estimated significance of causative factors in inducing the instability. Maps of landslide susceptibility (relative hazard) are usually prepared on regional scales from 1:25.000 - 1:50.000. An advantage of regional studies is that they allow rapid assessment and hence larger areas can be covered in short durations. Factors (data layers) used for the preparation of the landslide susceptibility map were obtained from different sources such as topographic maps, geological maps and satellite images. All the above data layers were converted to raster format in the GIS, each representing an independent variable of a constructed spatial database. Computerization of the database would be necessary to make such analysis possible within an acceptable time frame. According to their relative importance to slope instability in the study area, the various classes of different data layers were assigned weights between 0,0 and 1,0 (collectively adding to 1,0). The overall susceptibility was calculated as an index named SPI (Susceptibility Potential Index), expressing the combination of the different weighted layers into a single map using a certain combination rule. Reclassification of susceptibility scores, based on natural breaks in the cumulative frequency histogram of SPI values, were used to delineate various susceptibility zones namely, very high, high, moderate, low and very low. Verification of results by overlaying susceptibility map and landslide inventory data and adjustment of zone's boundaries was the last stage of the study, allowing the reconsideration in some cases of the weights given

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  • Remote Sensing and GIS
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References
Abalagan, R., 1992. Landslide hazard evaluation and zonation mapping in mountainous terrain. Engineering Geology, 32, 269-277.
Atkinson, P.M., Massari, R., 1998. Generalized linear modeling of susceptibility to landsliding in the Central Apennies Italy. Computers and Geosciences, 24(4), 373-385.
Banned, D., 1981. Geological map of Greece, Ligourion sheet, scale 1:50000, IGME publications.
Bornavas, J., Lalechos, N., Fillipakis, N., 1971. Geological map of Greece, Korinthos sheet, scale 1:50000, IGME publications.
Carper, W.J., Lillesand, T.M., Kiefer, R.W., 1990. The use of intensity-hue-saturation transformation for merging SPOT panchromatic and multispectral image data. Photogrammetric Engineering & Remote Sensing, 56(4), 459-467.
Carrara, Α., Cardinali, M., Detti, R., Guzzetti, F., Pasqui, V., Reichenbach, P., 1991. GIS techniques and statistical models in evaluating landslide hazard. Earth Surface Processes and Landforms, 16(5), 427-445.
Carrara, Α., Cardinali, Guzzetti, F., Reichenbach, P. 1995. GIS-based techniques for mapping landslide hazard. In: Carrara, Α., Guzzetti, F., (eds) Geographical information systems in assessing natural hazards. Kluwer, Dordrecht, 135-176.
Donati, L, Turrini, M.C., 2002. An objective method to rank the importance of factors predisposing to landslides with the GIS mothodology: application to an area of the Apennines (Valnerina; Perugia, Italy). Engineering Geology, 63, 277-289.
ERDAS Ine, 2002. ERDAS IMAGINE Field Guide. Leica Geosystems, GIS & Mapping division, Atlanda, USA, 659p.
Gaitanakis, P. Mettos, Α., Fytikas, M., 1985. Geological map of Greece, Sofikon sheet, scale 1:50000, IGME publications.
Gokceoglu, C, Aksoy, H., 1996. Landslide susceptibility mapping of the slopes in the residual soils of the Mengen region (Turkey) by deterministic stability analyses and image processing techniques. Engineering Geology, 44, 147-161.
Guzzetti, F , Carrara, Α., Cardinali, M., Reichenbach, P., 1999. Landslide hazard evaluation: a review of current techniques and their application in multi-scale study, central Italy. Geomorphology, 31, 181-216
Horn, B.K.P., 1981. Hill shading and reflectance map. IEEE, 69(1), 14-47.
Koukis, G., Ziourkas, C, 1991. Slope instability phenomena in Greece: A statistical analysis, Bulletin of International Association of Engineering Geologists, 43, 47-60.
Koukis, G., Tsiambaos, G., Sabatakakis, N., 1994. Slope movements in the Greek territory: A statistical approach. 7th Int. IAEG Congress, Lisbon, vol. VI, 4621-4628.
Lakaphossi, Α., Ziangas, E., Nakos, G., 1987. Soil map of Greece, Korinthos sheet, scale 1:50000, Ministry of Agriculture, Forest Service publications.
Lee, S, Min, Κ., 2001. Statistical analysis of landslide susceptibility at Yongin, Korea. Environmental Geology, 40,1095-1113.
Nikolaou, N., 1997. Rain &nd landslide manifestation correlation in Korinthos country, Greece. Inter. Symposium on Engineering Geology and the Environment, Athens, 1, 919-924.
Pachauri, A. K., Gupta, P. V., Chander, R, 1998. Landslide zoning in a part of the Garhwal Himalayas. Environmental Geology, 36(3-4), 325-334.
Saha, A.K., Gupta, R.P., Arora, M.K., 2002. GIS-based landslide hazard zonation in the Bhagirathi (Ganga) Valley, Himalayas. International Journal of Remote Sensing, 23(2), 357-369.
Schinas, K., Ziangas, E, Nakos, G., 1987. Soil map of Greece, Ligourion sheet, scale 1:50000, Ministry of Agriculture, Forest Service publications.
Singh, V.P., 1989. Hydrologie Systems, Watershed Modeling, vol. II, Prentice-Hall, New Jersey, 320p.
Tataris, Α., Kallergis, G., Kounis, G., 1970. Geological map of Greece, Nafplion sheet, scale 1:50000, IGME publications.
van Westen, C.J., Seijmonsbergen, A.C. & Mantovani, F., 1999. Comparing landslides hazard maps. Natural Hazards, 20(2/3), 137-158.
Vardakis, G., Ziangas, E., Nakos, G., 1985. Soil map of Greece, Sofikon sheet, scale 1:50000, Ministry of Agriculture, Forest Service publications.
Vardakis, G., Ziangas, E., Nakos, G., 1988. Soil map of Greece, Nafplion sheet, scale 1:50000, Ministry of Agriculture, Forest Service publications.
Varnes, D.J., 1984. Landslide hazard zonation: a review of principles and practice. Commission on landslides on the IAEG, UNESCO, Natural Hazards no.3, 61pp.
Zevenbergen, L.W., Thorne, C, 1987. Quantitative analysis of land surface topography. Earth Surface Processes and Landforms, 12, 47-56
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