Effect of earthquake on subsequent typhoon-induced landslides using remote sensing imagery in the 99 peaks region, central Taiwan

Shing Tsz Lee, Teng To Yu, Wen Fei Peng

研究成果: Conference contribution

1 引文 斯高帕斯(Scopus)

摘要

The effect of Chi-Chi earthquake on typhoon-triggered landslides was estimated using accuracy curves method in seismic landslide hazard model. The logistic regression model and geographic information system (GIS) are chosen to perform the seismic landslide hazard analysis. An inventory map of the landslides from SPOT images taken before and after the events was used to produce a dependent variable, which takes a value of 0 and 1 for the absence and presence of landslides. A set of independent parameters include lithology, elevation, slope gradient, slope aspect, terrain roughness, land use and Arias intensity (Ia) with topographic effect. Subsequently, the logistic regression is used to find the best fitting function to describe the relationship between occurrence or non-occurrence of landslides within an individual grid cell. The decreased effect of the earthquake was measured using accuracy curves method. It found that the effect of earthquake decreases with time. The landslide events of 2004 had little correlation with the Chi-Chi earthquake. Nevertheless, after period of 5 years, the seismic intensity from the Chi-Chi earthquake might still have affected conditions of landslides in the study area.

原文English
主出版物標題Advanced Materials in Microwaves and Optics, AMMO2011
發行者Trans Tech Publications Ltd
頁面773-779
頁數7
ISBN(列印)9783037852736
DOIs
出版狀態Published - 2012
事件2011 International Conference on Advanced Materials in Microwaves and Optics, AMMO2011 - Bangkok, Thailand
持續時間: 2011 九月 302011 十月 1

出版系列

名字Key Engineering Materials
500
ISSN(列印)1013-9826
ISSN(電子)1662-9795

Other

Other2011 International Conference on Advanced Materials in Microwaves and Optics, AMMO2011
國家Thailand
城市Bangkok
期間11-09-3011-10-01

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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