• CN 62-1175/P
• ISSN 1006-7639

Journal of Arid Meteorology ›› 2021, Vol. 39 ›› Issue (3): 486-493.

### Risk Distribution Characteristics of Rainstorm and Flood Disaster Based on Flood Area Model in the Xiaoma River Basin of Xingtai

ZHAO Zhinan1, WANG Lirong2, WANG Congmei1, HAN Xiaoqing3

1. 1. Xingtai Meteorological Bureau of Hebei Province, Xingtai 054000, Hebei, China；
2. Meteorological Disaster Prevention Center of Hebei Province, Shijiazhuang 050021, China；
3. Land and Resource Using and Planning Institute of Hebei Province, Shijiazhuang 050051, China
• Online:2021-06-30 Published:2021-07-16

### 基于Flood Area模型的邢台市小马河流域暴雨洪涝灾害风险分布特征

1. 1.河北省邢台市气象局，河北邢台054000；2.河北省气象灾害防御中心，
河北石家庄050021；3.河北省国土资源利用规划院，河北石家庄050051

Abstract: Based on the precipitation data of 26 automatic stations during 2014-2019 in the Xiaoma river basin and 7 national meteorological stations during 1980-2019 around the basin, the area rainfall under different return periods in the basin was calculated by using Tyson polygon method and MuDFiT software. The submerged areas under different return periods were simulated by Flood Area model and the inundation range map have been drawn on the same time. Based on this composited disasterbearing data, the damage information of various disasterbearing bodies can be obtained. The heavy rainfall process from 19 to 20 July 2016 was selected to verify the risk distribution characteristics of onceinacentury rainstorm and flood disaster, the results were basically consistent with the simulated flooding range. The study showed that with the recurrence period and submergence depth increasing, the deeper submergence area extended to the middle and lower reaches of the basin and the lower elevation. The forest land was seriously damaged with the highest damage rate when the submerged depth was between 0.1 m and 0.3 m or more than 1.0 m, when the submerged depth was less than 0.1 m, the impact on forest land was smaller and the damage rate was the lowest. Other disasterbearing bodies had the highest damage rate under 0.1 m submergence depth, the damage rate was in the middle level when the submerged depth was more than 1.0 m, when the submerged depth was from 0.5 m to 1.0 m, the damage rate was lowest.