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Observed daily river discharges at seven river gauging stations in the lake's catchment and the Yangtze River are available (Table 1). The most downstream gauging stations of the Ganjiang, Fuhe, Xinjiang, Raohe, and Xiushui Rivers were selected to represent the discharge from the lake's catchment (Figure 1). The Yangtze River gauging stations of Hankou and Jiujiang, situated 284 and 30 km upstream of the lake, respectively, were used to reflect the River effect (Figure 1(a)). Within the lake, the gauging stations of Hukou, Xingzi, Duchang, Tangyin, and Kangshan, located from the downstream outlet to the most upstream end of the lake, were selected and expected to represent different responses of the lake (Figure 1(b)).

Table 1

Data used in this study

Data descriptionGauging stationLocation and coordinatesTime duration
Catchment inflow Waizhou Ganjiang River (115.83°, 28.63°) 1960–2008 
Lijiadu Fuhe River (116.17°, 28.22°) 1960–2008 
Meigang Xinjiang River (116.82°, 28.43°) 1960–2008 
Shizhenjie Raohe River (116.97°, 28.85°) 1960–2008 
Wanjiabu Xiushui River (115.65°, 28.85°) 1960–2008 
Yangtze River discharge Hankou River middle reach (114.28°, 30.63°) 1960–2008 
Jiujiang River middle reach (115.97°, 29.71°) 1988–2008 
Poyang Lake water level Hukou Lake downstream (116.22°, 29.75°) 1960–2008 
Xingzi Lake downstream (116.03°, 29.45°) 1960–2008 
Duchang Lake midstream (116.18°, 29.27°) 1960–2008 
Tangyin Lake midstream (116.23°, 29.06°) 1964–2008 
Kangshan Lake upstream (116.42°, 28.88°) 1960–2008 
Data descriptionGauging stationLocation and coordinatesTime duration
Catchment inflow Waizhou Ganjiang River (115.83°, 28.63°) 1960–2008 
Lijiadu Fuhe River (116.17°, 28.22°) 1960–2008 
Meigang Xinjiang River (116.82°, 28.43°) 1960–2008 
Shizhenjie Raohe River (116.97°, 28.85°) 1960–2008 
Wanjiabu Xiushui River (115.65°, 28.85°) 1960–2008 
Yangtze River discharge Hankou River middle reach (114.28°, 30.63°) 1960–2008 
Jiujiang River middle reach (115.97°, 29.71°) 1988–2008 
Poyang Lake water level Hukou Lake downstream (116.22°, 29.75°) 1960–2008 
Xingzi Lake downstream (116.03°, 29.45°) 1960–2008 
Duchang Lake midstream (116.18°, 29.27°) 1960–2008 
Tangyin Lake midstream (116.23°, 29.06°) 1964–2008 
Kangshan Lake upstream (116.42°, 28.88°) 1960–2008 

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