Multi-Temporal Landslide Volumetric Analysis and Suitability Evaluation of Multi-Sourced Dems in an Area Hit by Wenchuan Earthquake

C. Tang, C.J. van Westen, Chuan Tang, Xuanmei Fan, V.G. Jetten

Research output: Contribution to conferenceAbstract

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Abstract

The 2008 Wenchuan earthquake in Sichuan, China, dramatically changed the terrain surface by inducing large numbers of landslides covering an estimated area of about 811 km2 (Dai et al., 2011). In the following years storms triggered thousands of debris flows across the entire mountainous region, among which several were much larger than expected. The temporary shelters, roads and reconstructed buildings were damaged or destroyed in a number of locations. The triggering mechanism of the debris flows were concluded as the entrainment of the loose materials created by the co-seismic landslides(Tang et al., 2011; Xu et al., 2012). Many studies were carried out, however the volume the landslides over large areas was only estimated by the area-volume relationships(Dai et al., 2011; Parker et al., 2011; Tang et al., 2016; Xu et al., 2013). Volume measurement was only done on a few large landslides through drilling bore holes and applying geophysics methods. The trend of the total loose material volume change over the years remains unknown.
Original languageEnglish
Pages118
Number of pages120
Publication statusPublished - 11 May 2018
EventMEGE 2018 : The 5th International Symposium on Mega Earthquake Induced Geo-disasters and Long Term Effects - http://www.mege.net/MEGE%202018%20program%20book.pdf, Chengdu, China
Duration: 11 May 201816 May 2018

Conference

ConferenceMEGE 2018 : The 5th International Symposium on Mega Earthquake Induced Geo-disasters and Long Term Effects
CountryChina
CityChengdu
Period11/05/1816/05/18

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Keywords

  • Digital Elevation Model
  • Landslide
  • Volume change

Cite this

Tang, C., van Westen, C. J., Tang, C., Fan, X., & Jetten, V. G. (2018). Multi-Temporal Landslide Volumetric Analysis and Suitability Evaluation of Multi-Sourced Dems in an Area Hit by Wenchuan Earthquake. 118. Abstract from MEGE 2018 : The 5th International Symposium on Mega Earthquake Induced Geo-disasters and Long Term Effects , Chengdu, China.