TY - JOUR
T1 - Downdrift Port Siltation Adjacent to a River Mouth
T2 - Mechanisms and Effects of Littoral Sediment Transport to the Navigation Channel
AU - Romdani, Andhy
AU - Chen, Jia Lin
AU - Chien, Hwa
AU - Lin, Jing Hua
AU - Hung, Chuan Kai
AU - Huang, Yu Qi
N1 - Publisher Copyright:
© 2022 This work is made available under the terms of the Creative Commons Attribution 4.0 International license.
PY - 2022/3/1
Y1 - 2022/3/1
N2 - The mechanisms controlling sediment transport at river mouths and estuaries nearby ports are complicated interactions among waves, tidal currents, and river flows over complex bathymetry. Episodic river discharge triggered by large rainfall may contribute to significant sediment into the ocean. Over the last decade, the exposed riverine sediment from the Zhuoshui River, north of Mailiao Port, is one of the major sources of sediment supply in this region. Previous field observations shortly after the passage of a typhoon suggested fine-grained sediments settled rapidly near the river mouth, and tidal currents and strong wind-driven waves during winter were the mechanisms that transported sediment toward the navigational channel. Numerical simulations provide insights into the patterns of residual circulations for a range of spring-neap tidal forces and wave conditions. Model results show that extending North Jetty could be one of the engineering countermeasures to modify the circulation system between the port and the river mouth to mitigate the siltation problem.
AB - The mechanisms controlling sediment transport at river mouths and estuaries nearby ports are complicated interactions among waves, tidal currents, and river flows over complex bathymetry. Episodic river discharge triggered by large rainfall may contribute to significant sediment into the ocean. Over the last decade, the exposed riverine sediment from the Zhuoshui River, north of Mailiao Port, is one of the major sources of sediment supply in this region. Previous field observations shortly after the passage of a typhoon suggested fine-grained sediments settled rapidly near the river mouth, and tidal currents and strong wind-driven waves during winter were the mechanisms that transported sediment toward the navigational channel. Numerical simulations provide insights into the patterns of residual circulations for a range of spring-neap tidal forces and wave conditions. Model results show that extending North Jetty could be one of the engineering countermeasures to modify the circulation system between the port and the river mouth to mitigate the siltation problem.
KW - Navigation improvements
KW - Sediment transport
KW - Sedimentation
KW - Siltation in waterways
UR - http://www.scopus.com/inward/record.url?scp=85123372119&partnerID=8YFLogxK
U2 - 10.1061/(ASCE)WW.1943-5460.0000700
DO - 10.1061/(ASCE)WW.1943-5460.0000700
M3 - 期刊論文
AN - SCOPUS:85123372119
SN - 0733-950X
VL - 148
JO - Journal of Waterway, Port, Coastal and Ocean Engineering
JF - Journal of Waterway, Port, Coastal and Ocean Engineering
IS - 2
M1 - 05022001
ER -