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Water 2017, 9(4), 280; doi:10.3390/w9040280

Optimal Operation Research of Flood Retarding in Plain River Network Region

1
College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China
2
Jiangsu Surveying and Design Institute of Water Resources Co., Ltd., Yangzhou 225127, China
*
Author to whom correspondence should be addressed.
Academic Editor: Marco Franchini
Received: 16 November 2016 / Revised: 5 April 2017 / Accepted: 12 April 2017 / Published: 17 April 2017
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Abstract

The operation of flood retarding areas does not attract much attention, although they are important components of flood control systems. Poor operation of such areas restricts not only the socio-economic development of the flood retarding area, but also limits scientific flood control options. As the second-largest flood retarding area in China, with more than 2000 km2 and 300 polders, the Hongze Lake vicinity was taken as a case study of graded flood retarding. A one and two-dimensional coupled hydrodynamic model was established to simulate flood routing in the Hongze Lake area. Fifteen different schemes involving different flood magnitudes and flood retarding operations were simulated. The results show that (1) having a flood retarding area is essential; and (2) the “graded flood retarding” scheme is superior to “no grading flood retarding” scheme; and (3) a “two-grade flood retarding” scheme is recommended. View Full-Text
Keywords: flood risk; hydrodynamic model; optimal operation; Hongze Lake flood risk; hydrodynamic model; optimal operation; Hongze Lake
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Zhu, Z.; Dong, Z.; Yang, W.; Zhou, J.; Li, D.; Fu, X.; Xu, W. Optimal Operation Research of Flood Retarding in Plain River Network Region. Water 2017, 9, 280.

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