Remote Sensing Applications and Decision Support

Rapidly responding to landslides and debris flow events using a low-cost unmanned aerial vehicle

[+] Author Affiliations
Cheng-Chien Liu

National Cheng Kung University, Global Earth Observation and Data Analysis Centre, No. 1, Ta-Hsueh Road, Tainan 701, Taiwan

National Cheng Kung University, Department of Earth Sciences, No. 1, Ta-Hsueh Road, Tainan 701, Taiwan

Po-Li Chen, Tomoya Matsuo

National Cheng Kung University, Global Earth Observation and Data Analysis Centre, No. 1, Ta-Hsueh Road, Tainan 701, Taiwan

Chen-Yu Chen

Debris Flow Disaster Prevention Center, Soil and Water Conservation Bureau, Council of Agriculture, Nantou, 54044, Taiwan

J. Appl. Remote Sens. 9(1), 096016 (Aug 21, 2015). doi:10.1117/1.JRS.9.096016
History: Received May 26, 2015; Accepted July 30, 2015
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Abstract.  Landslides and debris flow events triggered by substantial precipitation in typhoon events often cause enormous damage. It is crucial to rapidly acquire, process, and distribute the most updated information of the disaster areas, particularly optical images with high-spatial resolution. An unmanned aerial vehicle (UAV) provides an innovative approach to remote sensing that is much cheaper, safer, and more flexible for deployment in a small area, ranging from a few tens of square kilometers. This paper demonstrates the application of a low-cost UAV to rapid landslide assessment in difficult access and climatic conditions, as well as presents two examples of rapid response to the natural disaster events at Mudan and Manjhou triggered by Typhoon Nanmadol on August 29, 2011. Various approaches were successfully integrated and implemented in an automatic mission planning and image processing system to plan a flight mission and generate three levels of georeferenced products. Comparing with 14 check points identified on the 25-cm resolution aerial orthophoto, the accuracy of the orthophoto product can achieve a root mean square error of less than 2.81 pixels. All orthophotos are further processed to one seamless, color-balanced, and georeferenced mosaic that can be published on the free-access Google Earth within 24 h.

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© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Cheng-Chien Liu ; Po-Li Chen ; Tomoya Matsuo and Chen-Yu Chen
"Rapidly responding to landslides and debris flow events using a low-cost unmanned aerial vehicle", J. Appl. Remote Sens. 9(1), 096016 (Aug 21, 2015). ; http://dx.doi.org/10.1117/1.JRS.9.096016


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