Abstract
Aerial photo interpretation which make us realize the nature of landforms is strong tool to detect landslide prone area, even though precise DEM becomes to be available. Combination of above two methods is important to prepare landslide susceptibility map (LSM). Scale of landslide susceptibility map (LSM) varies according to the objectives of the projects. Landslide inventory of small scale is useful for nation wide planning. While AHP method is suitable for LSM of middle scale, 1/20,000–1/50,000 by aerial photo interpretation to nominate landslide susceptible area. Landslide susceptibility mapping of large scale for implementation of landslide prevention work or installation of observation equipment requires ground truth and comprehensive evaluation combined with AHP. Bell-Shape Index provide us the convenient criteria to evaluate landslide susceptibility in high relief mountain region, assessing overburdened mountain profile in high relief area.
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Acknowledgements
We deeply appreciate Prof. K. Sassa giving us a chance to write this paper. We also thank Prof. H. Yamagishi for many suggestive advices. Part of this study depends much on the LSM programme in Tegucigarpa carried by JICA and Honduras organizations, eg. UPI, UNAH & CODEM from 2012–2016. H. Yagi & G. Sato of the authors participated in the programme. We express much appreciation for all personnel and organizations concerned.
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Yagi, H., Hayashi, K., Sato, G. (2021). Landslide Susceptibility Mapping by Interpretation of Aerial Photographs, AHP and Precise DEM. In: Guzzetti, F., Mihalić Arbanas, S., Reichenbach, P., Sassa, K., Bobrowsky, P.T., Takara, K. (eds) Understanding and Reducing Landslide Disaster Risk. WLF 2020. ICL Contribution to Landslide Disaster Risk Reduction. Springer, Cham. https://doi.org/10.1007/978-3-030-60227-7_3
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