Table 1 Basic information on storm flooding events in Changsha, 2016–2020
|  |  | Year | Date (start–end) | Duration (d) | Average daily precipitation (mm) | Maximum daily precipitation (mm) |
|---|---|---|---|---|---|---|
General flooding | 1 | 2016 | 7.3–7.8 | 6 | 34.8 | 131.1 |
2 | 2016 | 7.18–7.20 | 3 | 28.4 | 85.2 | |
3 | 2016 | 9.10–9.12 | 3 | 32.2 | 93.7 | |
4 | 2017 | 6.1—6.3 | 3 | 28.9 | 86.6 | |
5 | 2017 | 6.24–6.27 | 4 | 43.5 | 92.4 | |
6 | 2017 | 6.30–7.9 | 10 | 33.5 | 198.9 | |
7 | 2018 | 7.12–7.14 | 3 | 41.4 | 82.7 | |
8 | 2019 | 5.13–5.15 | 3 | 27.5 | 82.2 | |
Heavy flooding | 1 | 2016 | 7.4–7.5 | 2 | 76.2 | 131.1 |
2 | 2017 | 6.25–6.26 | 2 | 80.3 | 92.4 | |
3 | 2017 | 7.1–7.8 | 8 | 29.1 | 198.9 |