Assessment of landslide hazard models in Chamsangar basin
Landslide mapping is one of the approaches (which can be) used to define the slope stable critical areas and the maps prepared based on this demarcating are used in desining sustainable development. The purpose of this study is to compare the landslide susceptibility mapping models based on Fuzzy lo...
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Kharazmi University
2017-03-01
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| Series: | تحقیقات کاربردی علوم جغرافیایی |
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| Online Access: | http://jgs.khu.ac.ir/article-1-2749-en.pdf |
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| author | siamak baharvand salman soori |
| author_facet | siamak baharvand salman soori |
| author_sort | siamak baharvand |
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| description | Landslide mapping is one of the approaches (which can be) used to define the slope stable critical areas and the maps prepared based on this demarcating are used in desining sustainable development. The purpose of this study is to compare the landslide susceptibility mapping models based on Fuzzy logic, Information value and area Density applied in the Chamsangar watershed. According to the tectonic and Iran old basins divisions, this basin is a part of folded Zagros. To study the stability of slopes in the Chamsang field, in first step the sliding point and subsequent distribution maps of landslide were prepared using satellite images and field visits (recording the sliding points by GPS). in this study, Landslide-related factors such slope, aspect, altitude, lithology, rainfall, landuse and distance from the road and drainage used in the landslide susceptibility analyses. To assess and classify was there models outputs the Sum of Quality (QS) index used. Results show that area Density model with QS=1.85 is the more suitable than Information value model with QS=1.60 and Fuzzy logic with QS=0.554 based on the out put of the area Density model, the 36.31, 44.78, 16.62, 1.65, and 0.63 percent of the area is located in very low, low, medium, high and very high risk classes, respectively. |
| format | Article |
| id | doaj-art-1646ed44c5d94dbfb78d361a9b037294 |
| institution | Kabale University |
| issn | 2228-7736 2588-5138 |
| language | fas |
| publishDate | 2017-03-01 |
| publisher | Kharazmi University |
| record_format | Article |
| series | تحقیقات کاربردی علوم جغرافیایی |
| spelling | doaj-art-1646ed44c5d94dbfb78d361a9b0372942025-01-31T17:23:33ZfasKharazmi Universityتحقیقات کاربردی علوم جغرافیایی2228-77362588-51382017-03-0117444564Assessment of landslide hazard models in Chamsangar basinsiamak baharvand0salman soori1 Landslide mapping is one of the approaches (which can be) used to define the slope stable critical areas and the maps prepared based on this demarcating are used in desining sustainable development. The purpose of this study is to compare the landslide susceptibility mapping models based on Fuzzy logic, Information value and area Density applied in the Chamsangar watershed. According to the tectonic and Iran old basins divisions, this basin is a part of folded Zagros. To study the stability of slopes in the Chamsang field, in first step the sliding point and subsequent distribution maps of landslide were prepared using satellite images and field visits (recording the sliding points by GPS). in this study, Landslide-related factors such slope, aspect, altitude, lithology, rainfall, landuse and distance from the road and drainage used in the landslide susceptibility analyses. To assess and classify was there models outputs the Sum of Quality (QS) index used. Results show that area Density model with QS=1.85 is the more suitable than Information value model with QS=1.60 and Fuzzy logic with QS=0.554 based on the out put of the area Density model, the 36.31, 44.78, 16.62, 1.65, and 0.63 percent of the area is located in very low, low, medium, high and very high risk classes, respectively.http://jgs.khu.ac.ir/article-1-2749-en.pdflandslidezonationchamsangar basinlorestandensity area model |
| spellingShingle | siamak baharvand salman soori Assessment of landslide hazard models in Chamsangar basin تحقیقات کاربردی علوم جغرافیایی landslide zonation chamsangar basin lorestan density area model |
| title | Assessment of landslide hazard models in Chamsangar basin |
| title_full | Assessment of landslide hazard models in Chamsangar basin |
| title_fullStr | Assessment of landslide hazard models in Chamsangar basin |
| title_full_unstemmed | Assessment of landslide hazard models in Chamsangar basin |
| title_short | Assessment of landslide hazard models in Chamsangar basin |
| title_sort | assessment of landslide hazard models in chamsangar basin |
| topic | landslide zonation chamsangar basin lorestan density area model |
| url | http://jgs.khu.ac.ir/article-1-2749-en.pdf |
| work_keys_str_mv | AT siamakbaharvand assessmentoflandslidehazardmodelsinchamsangarbasin AT salmansoori assessmentoflandslidehazardmodelsinchamsangarbasin |