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Improving debris flow monitoring in Taiwan by using high-resolution rainfall products from QPESUMS

Author

Listed:
  • Chien-Yuan Chen
  • Lee-Yao Lin
  • Fan-Chieh Yu
  • Ching-Sheng Lee
  • Chun-Chieh Tseng
  • An-Hsiang Wang
  • Kei-Wai Cheung

Abstract

Debris flow is commonly initiated by torrential rain and its triggering is correlated to the hydrological, geological, and geomorphic conditions on site. In spite of the important effects of geology and topography, rainfall characteristic is the main external triggering factor to debris flow and is a predominant parameter for real-time monitoring. Due to the scarcity of sufficient spatial ground-based rainfall data in hill areas, quantitative precipitation estimation using remote-sensing techniques such as radar and satellite is needed for debris flow pre-warning. The QPESUMS (Quantitative Precipitation Estimation and Segregation Using Multiple Sensors) system was acquired to retrieve spatial rainfall data during the rainfall period from June 30 to July 6 in 2004 when Typhoon Mindulle and southwesterly flow struck Taiwan. The retrieved data were used for setting up the debris flow monitoring algorithm. With the aid of multiple platforms of meteorological observations, a rainfall threshold isohyet in a pilot area was mapped for debris flow monitoring. The rainfall monitoring algorithm based on QPESUMS provides more detailed information than the limited number of ground-based rainfall stations for interpreting the spatial distributions of rainfall events, and therefore is more suitable for debris-flow monitoring. Copyright Springer Science+Business Media B.V. 2007

Suggested Citation

  • Chien-Yuan Chen & Lee-Yao Lin & Fan-Chieh Yu & Ching-Sheng Lee & Chun-Chieh Tseng & An-Hsiang Wang & Kei-Wai Cheung, 2007. "Improving debris flow monitoring in Taiwan by using high-resolution rainfall products from QPESUMS," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 40(2), pages 447-461, February.
    • Handle: RePEc:spr:nathaz:v:40:y:2007:i:2:p:447-461
    DOI: 10.1007/s11069-006-9004-2
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    References listed on IDEAS

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    1. Cheng-Shang Lee & Li-Rung Huang & Horng-Syi Shen & Shi-Ting Wang, 2006. "A Climatology Model for Forecasting Typhoon Rainfall in Taiwan," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 37(1), pages 87-105, February.
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    Citations

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    Cited by:

    1. Chen Chien-Yuan & Chen Lien-Kuang & Yu Fan-Chieh & Lin Sheng-Chi & Lin Yu-Ching & Lee Chou-Lung & Wang Yu-Ting & Cheung Kei-Wai, 2008. "Characteristics analysis for the flash flood-induced debris flows," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 47(2), pages 245-261, November.
    2. Yi Zou & Shifan Qiu & Yaoqiu Kuang & Ningsheng Huang, 2013. "Analysis of a major storm over the Dongjiang reservoir basin associated with Typhoon Bilis (2006)," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 69(1), pages 201-218, October.
    3. Jiao Wang & Hao Wang & Yao Jiang & Guotao Zhang & Bo Zhao & Yu Lei, 2023. "Geomorphic controls on debris flow activity in the paraglacial zone of the Southeast Tibetan Plateau," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 117(1), pages 917-937, May.
    4. Kun-Ming Lin & Wang-Kun Chen & Tai-Yi Yu & Len-Fu Chang, 2014. "The effects of Typhoon Morakot on concentration of airborne particulates derived from unvegetated riverbanks," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 74(2), pages 555-567, November.

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