Journal of the Japan Landslide Society
Online ISSN : 1882-0034
Print ISSN : 1348-3986
ISSN-L : 1348-3986
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Observation of the landslide development process by analysis of LiDAR-derived DEMs
Mio KASAIManabu IKEDAKazunori FUJISAWAMasayuki MATSUDAYusuke SUZUKI
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2008 Volume 45 Issue 2 Pages 118-124

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Abstract

This study investigates the potential of geomorphic filters derived from LiDAR 2-m grid DEMs to identify landslide features. The filters, slope and the eigenvalue ratio, were derived from the DEM for 6 landslides as well as two 0. 1 km2 areas where no landslides were identified. Field survey was also conducted to investigate their surface conditions. Results highlighted the importance of filters in characterising landslide features as well as the various stages in their development and activity. The relationships expressed between filter values and landslides are a reflection of the hardness of underlying rocks.

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© 2008 The Japan Landslide Society
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