Evaluation of landslide yielding sediments by using multi-temporal high resolution topographies

Chih-Ming Tseng, K. J. Chang, Y. S. Chen, C. H. Wang, C. C. Li

研究成果: Conference contribution

1 引文 斯高帕斯(Scopus)

摘要

In this study, we studied and monitored a watershed (Pu-tun-pu-nas) with an area of 7 km2 in southern Taiwan which was seriously affected by the major typhoon Morakot in 2009,. This typhoon brought extreme and long duration rainfall, for instance the cumulated rainfall around the study area was approximately 2,425 mm, and consequently caused severe landslides and debris flows. So after the typhoon Morakot, a large amount of landslide yielding materials had been reactivated resulted in active debris flows during recent years. The purpose of this study is to investigate the sediment budgets related to landslides and debris flows after the typhoon Morakot by using the difference of High Resolution DTM (DoD) method to perform subtraction on the DTMs before and after typhoons. To perform this study we acquired three DTMs generated by the aerial images taken by Unmanned Aerial Vehicle (UAV) and Airborne Digital Sensors (ADS) between 2010 to 2015. The results of this study provides not only geomatics and GIS datasets to monitor the terrassic evolution but also essential geomorphological key information to optimize the hazard mitigation planning.

原文English
主出版物標題17th European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2019 - Proceedings
編輯Haraldur Sigursteinsson, Sigurour Erlingsson, Sigurour Erlingsson, Bjarni Bessason
發行者International Society for Soil Mechanics and Geotechnical Engineering
ISBN(電子)9789935943613
DOIs
出版狀態Published - 2019
事件17th European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2019 - Reykjavik, Iceland
持續時間: 2019 9月 12019 9月 6

出版系列

名字17th European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2019 - Proceedings
2019-September

Conference

Conference17th European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2019
國家/地區Iceland
城市Reykjavik
期間19-09-0119-09-06

All Science Journal Classification (ASJC) codes

  • 土壤科學
  • 岩土工程與工程地質

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