Research of Critical Precipitation Distribution in Sichuan Province Based on Spatial Interpolation Method

Abstract:

Critical rainfall is one of the most important parameters of prediction, forecasting and early warning on mountain torrents disasters with important meanings for preventing mountain torrents disasters. In this paper, the measured rainfall method was taken to calculate the critical rainfall in typical regions based on the rainfall data of typical regional meteorological stations. Then, the Inverse Distance Weighting spatial interpolation method and Ordinary Kriging Interpolation method are taken based on the typical regional critical rainfall to get the critical rainfall distribution map of Sichuan Province. The critical rainfall distribution maps, which obtained from the two kinds of interpolation methods, both have universality and operability. Among them, the critical rainfall distribution map mapped by the Ordinary Kriging Interpolation method was more consistent with the practical situation.

• Periodical: Advanced Materials Research (Volumes 726-731)
• Pages: 3469-3474
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.726-731.3469
• Online since: August 2013
• Authors: Zhao Xian Wang, Wen Bo Xu, Shao Cai Jing, Li Mei Zhou, Wen Zhi Zhang
• Keywords: Critical Precipitation, Flash Flood Disaster, Inverse Distance Weighting Interpolation, Ordinary Kriging Interpolation

References

[1] Guiya Chen, Yaming Yuan. Study on calculation method of critical precipitation of mountain torrents disaster. Yangtze River Vol. 36 (2005), p.40 (In Chinese)

[2] Rongsheng Duan. Calculation and analysis of critical precipitation of flash flood disaster of typical small watershed. Water Resources Planning and Design Vol. 3 (2009), p.20 (In Chinese)

[3] Yulong Zhang, Long Wang. Study on spatial interpolation analysis method of critical precipitation of flash flood disaster in Yunnan Province. Journal of Yunnan Agricultural University Vol. 22 (2007), p.570 (In Chinese)

[4] Jinhong Jiang, Liping Shao. Standard of mountain flood warning based on the precipitation observation data. Journal of Hydraulic Engineering Vol. 41 (2010), p.458 (In Chinese)

[5] Michalis Diakakis. Rainfall thresholds for flood triggering, the case of Marathonas in Greece. Nat Hazards Vol. 60 (2012), p.789

DOI: 10.1007/s11069-011-9904-7

[6] Ranhang Zhao, Min Wang, Xiaolei Lu. Research on Determination Method for Rainfall Warning Indexes of Torrential Flood Disaster. Water Resources and Power Vol. 29 (2011), p.49 (In Chinese)

[7] Yong Ye, Zhenyu Wang, Boqin Fan. An analysis method for ascertain critical rainfall of mountain flood disaster of small watershed in Zhejiang Province. Journal of China Hydrology Vol. 28 (2008), p.56 (In Chinese)