García Rodríguez, María José and Malpica Velasco, José Antonio and Benito Oterino, Belen and Díaz, Manuel (2008) Susceptibility assessment of earthquake-triggered landslides in El Salvador using logistic regression. Geomorphology, 95 (3). 172 - 191. ISSN 0169-555X
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| Item Type: | Article | ||||||||||
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| Authors/Creators: |
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| Title: | Susceptibility assessment of earthquake-triggered landslides in El Salvador using logistic regression | ||||||||||
| Publisher: | Elsevier | ||||||||||
| Journal/Publication Title: | Geomorphology | ||||||||||
| Date: | March 2008 | ||||||||||
| Volume: | 95 | ||||||||||
| Number: | 3 | ||||||||||
| Department: | Engineering Surveying and Mapping | ||||||||||
| Faculty: | E.T.S.I. in Topography, Geodesy and Cartography (UPM) | ||||||||||
| Creative Commons licenses: | Recognition - No derivative works - No commercial | ||||||||||
| Item ID: | 2325 | ||||||||||
| Subjects: | Geology Civil Engineering and Construction |
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Abstract
This work has evaluated the probability of earthquake-triggered landslide occurrence in the whole of El Salvador, with a Geographic Information System (GIS) and a logistic regression model. Slope gradient, elevation, aspect, mean annual precipitation, lithology, land use, and terrain roughness are the predictor variables used to determine the dependent variable of occurrence or nonoccurrence of landslides within an individual grid cell. The results illustrate the importance of terrain roughness and soil type as key factors within the model — using only these two variables the analysis returned a significance level of 89.4%. The results obtained from the model within the GIS were then used to produce a map of relative landslide susceptibility.
| Item Type: | Article |
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| Uncontrolled Keywords: | Logistic regression; Slope stability; Landslide susceptibility; Geographical Information Systems (GIS); El Salvador |
| Subjects: | Geology Civil Engineering and Construction |
| Código ID: | 2325 |
| Depositado Por: | Memoria Investigacion |
| Depositado el: | 24 Feb 2010 13:43 |
| Last Modified: | 11 Oct 2010 13:27 |
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