Journal
JOURNAL OF MOUNTAIN SCIENCE
Volume 12, Issue 5, Pages 1219-1228Publisher
SCIENCE PRESS
DOI: 10.1007/s11629-014-3307-7
Keywords
Landslide; Early warning system (EWS); Wireless sensor network; Velocity threshold; Longjingwan landslide
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Funding
- State Key Laboratory of Geo-hazard Prevention and Geo-environment Protection (Chengdu University of Technology) [SKLGP2013Z007]
- National Natural Science Foundation of China [41302242]
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Landslides not only cause property losses, but also kill and injure large numbers of people every year in the mountainous areas. These losses and casualties may be avoided to some extent by early warning systems for landslides. In this paper, a realtime monitoring network and a computer-aided automatic early warning system (EWS) are presented with details of their design and an example of application in the Longjingwan landslide, Kaiyang County, Guizhou Province. Then, according to principle simple method of landslide prediction, the setting of alarm levels and the design of appropriate counter-measures are presented. A four-level early warning system (Zero, Outlook, Attention and Warning) has been adopted, and the velocity threshold was selected as the main warning threshold for the landslide occurrence, but expert judgment is included in the EWS to avoid false alarms. A case study shows the applicability and reliability for landslide risk management, and recommendations are presented for other similar projects.
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