Articles | Volume 7, issue 2
https://doi.org/10.5194/esurf-7-439-2019
https://doi.org/10.5194/esurf-7-439-2019
Research article
 | 
21 May 2019
Research article |  | 21 May 2019

Testing a failure surface prediction and deposit reconstruction method for a landslide cluster that occurred during Typhoon Talas (Japan)

Michel Jaboyedoff, Masahiro Chigira, Noriyuki Arai, Marc-Henri Derron, Benjamin Rudaz, and Ching-Ying Tsou

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Cited articles

Arai, N. and Chigira, M.: Rain-induced deep-seated catastrophic rockslides controlled by a thrust fault and river incision in an accretionary complex in the Shimanto Belt, Japan, Island Arc, 27, 17 p., https://doi.org/10.1111/iar.12245, 2018. 
Aryal, A., Brooks, B. A., and Reid, M. E.: Landslide subsurface slip geometry inferred from 3-D surface displacement fields, Geophys. Res. Lett., 42, 1411–1417, https://doi.org/10.1002/2014GL062688, 2015. 
Baum, R. L., Messerich, J., and Fleming, R. W.: Surface deformation as a guide to kinematics and three-dimensional shape of slow-moving, clay-rich landslides, Honolulu, Hawaii, Environ. Eng. Geosci., 4, 283–306, 1998. 
Booth, A. M., Lamb, M. P., Avouac, J.-P., and Delacourt, C.: Landslide velocity, thickness, and rheology from remote sensing: La Clapière landslide, France, Geophys. Res. Lett., 40, 4299–4304, https://doi.org/10.1002/grl.50828, 2013. 
Carter, M. and Bentley, S. P.: The geometry of slip surfaces beneath land-slides: prediction from surface measurements, Can. Geotech. J., 22, 234–238, 1985. 
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Short summary
High-resolution digital elevation models (DEMs) can now be acquired using airborne laser scanners. This allows for a detailed analysis of the geometry of landslides. Several large landslides were triggered by Typhoon Talas in Japan in 2011. The comparison of pre- and post-DEMs allowed us to test a method of defining landslide failure surfaces before catastrophic movements. It provides new results about the curvature of the failure surface and the volume expansion of the deposit.
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