Table 1 Information on hydrological stations in the study area.
Hydrometric station | Jinsuozhen station | Sihong station | Shuanggou station | ||
|---|---|---|---|---|---|
Geographical Location | 118°17′ E, 33°37′ N | 118°10′ E, 33°27′ N | 118°11′ E, 33°13′ N | ||
Controlled river section | Xu Honghe River | Old Sui River | New Sui River | Huai Hongxin River | |
Bed elevation (m) | 7.8–8.4 | 9.0–12.6 | 10.0 | 7.86 | |
River width (m) | 45–102 | 30–54 | 20–40 | 350–360 | |
Bankfull stage (m) | 17.1–23.8 | 17.13–19.66 | 17.5–21.7 | 18.3–18.6 | |
Top width (m) | 10–22 | 4–6 | 4–20 | 8.0–8.5 | |
Embankment length (km) | 236.50 | 76.8 | 32.35 | 52.7 | |
Left bank length (km) | 113.40 | 29.15 | 13.35 | 27.3 | |
Right bank length (km) | 123.10 | 46.75 | 19 | 25.4 | |
Flood control standard | Once every 20 years | once every 20 years | Once every 20 years | Once every 100 years | |
Warning water level (m) | 15.5 | 15.41 | 15.66 | 14.5 | |
Total length (km) | 118.16 | 173.4 | 50.36 | 126 | |
Starting point | Jinghang Grand Canal, East Suburb of Xuzhou, Jiangsu | Beihui Tang Ditch, Sixian County, Suzhou, Anhui | Yulong Lake Reservoir, Xuzhou, Jangsu | Hexiang Sluice, Huaiyuan County, Bengbu, Anhui | |
Inflow | Hongze Lake | ||||
Historical highest water level (m) | 17.7Â m | 16.73 | 16.34 | 17.05 | |
Historical maximum flow (m3/s) | 1240 | 277 | 757 | 3150 | |
Data length | 2002–2022 (a total of 21 years) | ||||
