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JDR Vol.10 No.3 pp. 503-511
(2015)
doi: 10.20965/jdr.2015.p0503

Paper:

Compound Strategy Forward to Compound Disaster Mitigation: Lessons from Hsiaolin Village, Typhoon Morakot 2009

Wen-Chi Lai*, Yuan-Jung Tsai*, and Chjeng-Lun Shieh*,**

*Disaster Prevention Research Center, National Cheng Kung University
No.1, University Road, Tainan City 70101, Taiwan

**Department of Hydraulic and Ocean Engineering, National Cheng Kung University
No.1, University Road, Tainan City 70101, Taiwan

Received:
December 27, 2014
Accepted:
April 27, 2015
Published:
June 1, 2015
Keywords:
disaster mitigation, compound disaster, Typhoon Morakot, climate change
Abstract

In 2009, the heavy rainfall induced by Typhoon Morakot hit Hsiaolin Village that caused catastrophic flooding, landslides, landslide dam breakages and debris flows. Such a called “compound disaster” is defined as a disaster in which extensive floods or sediment transports occur simultaneously or consecutively at the catchment area during an event. It challenges current warnings, forecasting and responses to sediment disasters. New concepts and procedure thus are needed to cope with such “compound disasters.” Rainfall hydrographs show downpours of long duration, high intensity, high accumulation and large extent. To better delineate these disasters and provide possible coping strategies, we rebuild the temporal order and spatial distribution of the disaster processes involved. The study suggest correlating individual disaster types with rainfall through simulation. This could clarify the causality between what happened in Hsiaolin Village and related disasters. Our results will strengthen disaster prevention in debris flows and shallow landslides using strateghies that could then be applied to warning systems for deep-seated landslide and landslide dams. The derivative issues and the approach to compound disaster prevention are suggested for future tasks.

Cite this article as:
W. Lai, Y. Tsai, and C. Shieh, “Compound Strategy Forward to Compound Disaster Mitigation: Lessons from Hsiaolin Village, Typhoon Morakot 2009,” J. Disaster Res., Vol.10, No.3, pp. 503-511, 2015.
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