Behavior-oriented calculation of the annual coastal bathymetry evolution caused by a reclamation work

ZHENG Jinhai; HOANG Quoc Xuyen; ZHANG Chi; CHEN Kefeng; DONG Xiaowei; LEI Gang; WANG Yigang

doi:10.1007/s13131-017-1139-3

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Article Navigation > Acta Oceanologica Sinica > 2017 > 36(11): 86-93

ZHENG Jinhai, HOANG Quoc Xuyen, ZHANG Chi, CHEN Kefeng, DONG Xiaowei, LEI Gang, WANG Yigang. Behavior-oriented calculation of the annual coastal bathymetry evolution caused by a reclamation work[J]. Acta Oceanologica Sinica, 2017, 36(11): 86-93. doi: 10.1007/s13131-017-1139-3

Citation:

ZHENG Jinhai, HOANG Quoc Xuyen, ZHANG Chi, CHEN Kefeng, DONG Xiaowei, LEI Gang, WANG Yigang. Behavior-oriented calculation of the annual coastal bathymetry evolution caused by a reclamation work[J]. Acta Oceanologica Sinica, 2017, 36(11): 86-93. doi: 10.1007/s13131-017-1139-3

Citation:

ZHENG Jinhai, HOANG Quoc Xuyen, ZHANG Chi, CHEN Kefeng, DONG Xiaowei, LEI Gang, WANG Yigang. Behavior-oriented calculation of the annual coastal bathymetry evolution caused by a reclamation work[J]. Acta Oceanologica Sinica, 2017, 36(11): 86-93. doi: 10.1007/s13131-017-1139-3

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Behavior-oriented calculation of the annual coastal bathymetry evolution caused by a reclamation work

doi: 10.1007/s13131-017-1139-3

1.
State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China;College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing 210098, China
2.
Nanjing Hydraulic Research Institute, Nanjing 210024, China
3.
China Harbour Engineering Company, Beijing 100027, China
4.
Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China
5.
College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing 210098, China

Received Date: 2016-12-03
Rev Recd Date: 2017-01-10

Abstract

Abstract

A behavior-oriented formula is improved to calculate the annual coastal bathymetry evolution caused by a reclamation work. This formula is based on a simple hypothesis that, on the time scale of years, the bathymetry evolution is closely related to the change of tidal current field due to the reclamation work. A new coefficient, named the erosion reduction coefficient, is introduced to extend the original formula for applications in calculating bed erosion. A simplified relationship between the annual variation of the siltation/erosion rate and the water depth is introduced to more realistically represent the long-term process of the bathymetry evolution. The improved formula is applied to calculate the bathymetry evolution in 3 a following a reclamation project in the Xiaomiaohong Tidal Channel in Jiangsu coast in China. The results compare well with measurements and those obtained from a process-based numerical model, demonstrating the capability of the improved behavior-oriented formula in reproducing the impact of the reclamation project on the local bathymetry evolution.
- coastal evolution,
- behavior-oriented formula,
- reclamation,
- numerical simulation

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References(22)

References

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