Analysis of Forecast and Early Warning of Flood in Medium and Small Rivers
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Medium and small rivers
Flood forecast and early warning
Flood disaster



Submitted : 2023-04-11
Accepted : 2023-04-26
Published : 2023-05-11


Flooding of small and medium rivers is caused by environmental factors like rainfall and soil loosening. With the development and application of technologies such as the Internet of Things and big data, the disaster supervision and management of large river basins in China has improved over the years. However, due to the frequent floods in small and medium-sized rivers in our country, the current prediction and early warning of small and medium-sized rivers is not accurate enough; it is difficult to realize real-time monitoring of small and medium-sized rivers, and it is also impossible to obtain corresponding data and information in time. Therefore, the construction and application of small and medium-sized river prediction and early warning systems should be further improved. This paper presents an analysis and discussion on flood forecasting and early warning systems for small and medium-sized rivers in detail, and corresponding strategies to improve the effect of forecasting and early warning systems are proposed.


Liu Z, Liu Y, Kong X, 2021, Problems and Countermeasures of Flood Forecasting and Early Warning of Small and Medium Rivers and Application of Key Technologies. Journal of Hohai University (Natural Science Edition), 49(1): 1–6.

Dong X, 2021, Application of Forecast Model in Flood Forecasting of Typical Small and Medium Rivers. Henan Water Conservancy and South-to-North Water Diversion, 50(3):14–16 + 20.

Liu C, 2021, Analysis of Flood Early Warning and Forecasting Scheme at Hedongying Hydrological Station in Mingguang, Yunnan Province. Water Conservancy and Hydropower Express, 42(3): 8–10 + 28.

Zhang J, 2020, Construction Ideas and Key Technologies of Intelligent System for Flood Forecasting and Dispatching of Small and Medium Rivers. Henan Water Conservancy and South-to-North Water Diversion, 49(4): 19–20 + 56.

Chen R, Wu G, Liu Z, 2023, Discussion on the Method of Setting the Warning Water Level of Small and Medium-Sized Rivers. China Flood Control and Drought Relief, 33(1): 52–56.

Huang G, Xie X, Huang H, 2022, Application of Xin’anjiang Model in Flood Forecasting of Wan’an Reservoir Basin in Jiangxi Province. Water Resources Development and Management, 2021(2): 51–58.

Chen Z, 2020, The Application of Hydraulic Method and Hydrological Comparison in Calculating the Discharge of Small and Medium-Sized Rivers —— Taking Licun Hydrological Station as an Example. Guangxi Water Conservancy and Hydropower, 2020(1): 32–35.

Yan J, 2022, Design and Application of Mountain Torrent Disaster Monitoring and Early Warning Cloud Platform System. Guangdong Water Conservancy and Hydropower, 2022(3): 96–100.

Wei Y, 2022, Application of Xin’an River Model in Flood Forecasting of Qinjiang Jianshan Hydrological Station. Pearl River Water Transport, 2022(21): 89–91.

Chen X, Liu Y, Zhang J, et al., 2022, Application of Data Mining Technology in Real-Time Correction of Flood Forecast. Journal of Hydropower Engineering, 41(8): 54–62.