Study on the rainfall-flood relationship and related occurrence probability in Tongzhou Area
- DOI
- 10.2991/iccahe-16.2016.147How to use a DOI?
- Keywords
- Beiyunhe River; rainfall-flood relationship; Occurrence probability; Tongzhou Area
- Abstract
More and more people are concerned about flood control and disaster mitigation. Beiyun River, as one of five river systems in Beijing, its flood control capacity play a critical role in urban flood control and disaster mitigation. Hence, the research on the relationship between the Beiyun River's rainfall and floods occurring has significance for flood control and disaster mitigation in Tongzhou area, Beijing. In this paper, Beiyun River (Tongzhou area basin) was selected as the research object, the rainfall-flood relationship, the occurrence probability of heavy rainfall and lager flood were studied with the method of mathematical statistics and theoretical analysis. The results showed based on the SPSS analysis, while the 24-hour rainfall was larger than 50 mm, the occurrence probability that flow rate>150 m3/s was 0.30. Among them, the occurrence probability that flow rate ranged 150-500 m3/s, 500-1000 m3/s and >1000 m3/s was 0.26, 0.09 and 0.30, respectively. While the flow rate was larger than 150 m3/s, the occurrence probability that 24-hour rainfall>50 mm was 0.34. Among them, the occurrence probability that 24-hour rainfall ranged 50-100 mm, 100-200 mm and >200 mm was 0.20, 0.13, 0.02, respectively. Based on R statistical programing, while flood peak flow rate was larger than 150 m3/s, the occurrence probability that 24-hour rainfall>50 mm ranged from 0.28 to 0.45; while flood peak flow rate was larger than 150 m3/s, the occurrence probability that 24-hour rainfall<50 mm ranged from 0.54 to 0.70; while flood peak flow rate was less than 150 m3/s, the occurrence probability that 24-hour rainfall>50 mm ranged from 0.45 to 0.68..
- Copyright
- © 2016, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - C.Y. Wang AU - M. Zang AU - Y.J. Wang AU - L.H. Yang PY - 2016/10 DA - 2016/10 TI - Study on the rainfall-flood relationship and related occurrence probability in Tongzhou Area BT - Proceedings of the 2016 5th International Conference on Civil, Architectural and Hydraulic Engineering (ICCAHE 2016) PB - Atlantis Press SP - 945 EP - 951 SN - 2352-5401 UR - https://doi.org/10.2991/iccahe-16.2016.147 DO - 10.2991/iccahe-16.2016.147 ID - Wang2016/10 ER -