Econ. Environ. Geol. 2001; 34(2): 205-215

Published online April 30, 2001

© THE KOREAN SOCIETY OF ECONOMIC AND ENVIRONMENTAL GEOLOGY

Landslide Susceptibility Analysis in Janghung Using Spatial Relationships between Landslide and Geospatial Information

Saro Lee1*, Kwang-Hoon Chi1, No-Wook Park1 and Jin-Soo Shin2

1National Geoscience Information Center, Korea Institute of Geoscience and Mineral Resources, Daejeon 305-350, Korea
2Chung-Ang Aerosurvey Co., Seoul 110-100, Korea

Correspondence to :

Saro Lee

leesaro@kigam.re.kr

Received: February 19, 2001; Accepted: March 30, 2001

Abstract

The purpose of this study is to analyze the landslide susceptibility, containing the process, which reveals spatial relationships between landslides and geospatial data sets, which occurred in Janghung area in 1998. Landslide locations were detected from remotely sensed image and field survey and topography, soil, forest, and land use data sets were constructed as a spatial database in GIS. As the landslide occurrence factors, slope, aspect, curvature and type of topography, texture, material, drainage and effective thickness of soil, type, age, diameter and density of wood and land use were used. To extract the relationship between landslides and geospatial database, likelihood ratio was calculated and compared with the result of Yongin area. Also, the landslide susceptibility index was calculated by summation of the likelihood ratio and the landslide susceptibility map was generated using the index. As a result, it is expected that spatial relationships between landslides and geospatial database is helpful to explain the characteristics of landslide and the landslide susceptibility map is used to reduce associated hazards, and to plan land use and construction.

Keywords landslide, susceptibility, geospatial information, GIS, Janghung

Article

Econ. Environ. Geol. 2001; 34(2): 205-215

Published online April 30, 2001

Copyright © THE KOREAN SOCIETY OF ECONOMIC AND ENVIRONMENTAL GEOLOGY.

Landslide Susceptibility Analysis in Janghung Using Spatial Relationships between Landslide and Geospatial Information

Saro Lee1*, Kwang-Hoon Chi1, No-Wook Park1 and Jin-Soo Shin2

1National Geoscience Information Center, Korea Institute of Geoscience and Mineral Resources, Daejeon 305-350, Korea
2Chung-Ang Aerosurvey Co., Seoul 110-100, Korea

Correspondence to:

Saro Lee

leesaro@kigam.re.kr

Received: February 19, 2001; Accepted: March 30, 2001

Abstract

The purpose of this study is to analyze the landslide susceptibility, containing the process, which reveals spatial relationships between landslides and geospatial data sets, which occurred in Janghung area in 1998. Landslide locations were detected from remotely sensed image and field survey and topography, soil, forest, and land use data sets were constructed as a spatial database in GIS. As the landslide occurrence factors, slope, aspect, curvature and type of topography, texture, material, drainage and effective thickness of soil, type, age, diameter and density of wood and land use were used. To extract the relationship between landslides and geospatial database, likelihood ratio was calculated and compared with the result of Yongin area. Also, the landslide susceptibility index was calculated by summation of the likelihood ratio and the landslide susceptibility map was generated using the index. As a result, it is expected that spatial relationships between landslides and geospatial database is helpful to explain the characteristics of landslide and the landslide susceptibility map is used to reduce associated hazards, and to plan land use and construction.

Keywords landslide, susceptibility, geospatial information, GIS, Janghung

    KSEEG
    Apr 30, 2024 Vol.57 No.2, pp. 107~280

    Stats or Metrics

    Share this article on

    • kakao talk
    • line

    Related articles in KSEEG

    Economic and Environmental Geology

    pISSN 1225-7281
    eISSN 2288-7962
    qr-code Download