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

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

doi: 10.1007/s13131-017-1139-3
  • Received Date: 2016-12-03
  • Rev Recd Date: 2017-01-10
  • 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.
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