A multi-class weight of evidence approach for landslide susceptibility mapping applied to an area along the E-W highway (Gerik - Jeli), Malaysia

Tareq Mezughi, Juhari Mat Akhir, Abdul Ghani Rafek, Ibrahim Abdullah

    Research output: Contribution to journalArticle

    6 Citations (Scopus)

    Abstract

    The weights-of-evidence modelling (based on multi-class maps) was applied within a geographical information system (GIS) to prepare a landslide susceptibility map. The area selected is along the E-W highway in Malaysia where frequent landslides occur. The spatial database for factors (evidences) that influence landslide occurrence were prepared from different sources including topographical maps, geological maps, satellite data, hydrological data, soil data and field data. Eleven prepared thematic maps of evidence were: slope gradient, slope aspect, elevation, distance from road, drainage density, lithology, strata dip, foliation dip, lineament density, soil, and rainfall. All maps were subdivided into different classes by its value or feature and then were converted to raster format in the ArcGIS 9.2, each representing an independent layer of causative factor in the constructed spatial database. The conditional independence test was carried out to determine factors that are conditionally independent of each other with landslides. The results of the Chi square analysis figured out ten possible models, including combinations of different independent factors, which were used in preparing ten landslide susceptibility indexes. Among these models, model three combining data on roads, soil, lineament, rainfall, slope, lithology and foliation showed the highest prediction accuracy (AUC= 80.08).

    Original languageEnglish
    Pages (from-to)1259-1273
    Number of pages15
    JournalElectronic Journal of Geotechnical Engineering
    Volume16 O
    Publication statusPublished - 2011

    Fingerprint

    Landslides
    landslide
    road
    Lithology
    lineament
    foliation
    Soils
    Rain
    dip
    lithology
    rainfall
    soil
    raster
    Drainage
    satellite data
    Information systems
    GIS
    Satellites
    drainage
    prediction

    Keywords

    • East- West highway (Malaysia)
    • GIS methodology
    • Landslide susceptibility mapping
    • Weight of evidence

    ASJC Scopus subject areas

    • Geotechnical Engineering and Engineering Geology

    Cite this

    A multi-class weight of evidence approach for landslide susceptibility mapping applied to an area along the E-W highway (Gerik - Jeli), Malaysia. / Mezughi, Tareq; Akhir, Juhari Mat; Rafek, Abdul Ghani; Abdullah, Ibrahim.

    In: Electronic Journal of Geotechnical Engineering, Vol. 16 O, 2011, p. 1259-1273.

    Research output: Contribution to journalArticle

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