Generating multi-temporal landslide inventory using the ndvi temporal trajectory in Nantou County, Taiwan

Thanh Duy Nguyen, Van Trung Chu, Shou Hao Chiang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In Taiwan, landslide usually appears in orogenic mountain belts after earthquake and typhoon events. In this paper, we aim to assess the temporal trajectory of Normalized Difference Vegetation Index (NDVI) time series by using SPOT images to carry out the landslide mapping from 1999 to 2009 in Nantou County, Central Taiwan. By quantifying the temporal change of NDVI index, we can identify the extent, location, and timing of the landslide. Preliminary results reveal different temporal patterns of landslide activities through potential disturbances of vegetation recovery index refer to earthquakes with magnitude Mw over 6 and typhoons with precipitation higher than 200mm/day. We expect that our proposed method can contribute to the generation of multitemporal landslide inventory more efficiently.

Original languageEnglish
Title of host publicationACRS 2020 - 41st Asian Conference on Remote Sensing
PublisherAsian Association on Remote Sensing
ISBN (Electronic)9781713829089
StatePublished - 2020
Event41st Asian Conference on Remote Sensing, ACRS 2020 - Deqing City, Virtual, China
Duration: 9 Nov 202011 Nov 2020

Publication series

NameACRS 2020 - 41st Asian Conference on Remote Sensing

Conference

Conference41st Asian Conference on Remote Sensing, ACRS 2020
Country/TerritoryChina
CityDeqing City, Virtual
Period9/11/2011/11/20

Keywords

  • Earthquake
  • Landslide detection
  • Rainstorm
  • SPOT image
  • Temporal trajectory

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