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Published in:
2020 | OriginalPaper | Chapter
Impact of Tide Gate Operation on Sediment and Water Quality of Yongding New River
Authors : Zhao Jinqiong, Yuan Yuan, Luo Xue
Published in: Estuaries and Coastal Zones in Times of Global Change
Publisher: Springer Singapore
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Abstract
The construction of tide gate at Yongding New River estuary will influence the transportation of water, sediment and pollutant, and these changes at upstream/downstream of sluice will be different under different operation mode, which also in turn restricts the scheduling plan. In order to provide a basis for the selection of tide gate operational modes, the 1-D mathematical model for unsteady flow-sediment-water quality in channel with a sluice has been established, which was used to study the impact of tide gate operation of Yongding New River. The result shows that, comparing with the operation mode which only storing fresh water, the water quality will be better with the operation mode which storing sea water. And the water quality gradually improved with higher storage water level. However, there will be more deposition upstream & downstream of tide gate.