Volume 12, Issue 46 (fall 2009)                   jwss 2009, 12(46): 375-390 | Back to browse issues page

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Pourghasemi H, Moradi H, Mohammadi M, Mahdavifar M. Landslide Hazard Susceptibility Mapping and its Evaluation Using The Fuzzy Operators. jwss 2009; 12 (46) :375-390
URL: http://jstnar.iut.ac.ir/article-1-1130-en.html
, morady5hr@yahoo.com
Abstract:   (27083 Views)
One of our first activities in natural resources management and development programs is to acquire knowledge on Landslide Susceptible areas. The aim of this research is landslide hazard zonation in some part of Haraz watershed between Vana village and Emam zadeh Ali, using fuzzy membership functions and fuzzy operators. At first landslide points were recognized using arial photography and field studies. Afterwards, the inventory map of landslide was prepared. Then, each effective element in landslide such as: slope, aspect, elevation, lithology, landuse, distance of road, distance of drainage, distance of fault and precipitation map was prepared in GIS environment.These data were saved in raster and vector format in ILWIS software and used for analysis with theory of fuzzy sets. Fuzzy analysis was made by IDRISI software, after assigning value and fuzzy membership functions. In this research we used different fuzzy operators such as (And, Or, Sum, Product and Gamma). Results showed Gamma fuzzy operator had the best accuracy ( ) in making landslide susceptibility map in study area.
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Type of Study: Research | Subject: Ggeneral
Received: 2010/06/15 | Published: 2009/01/15

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