摘要
为了评估广西钦州茅尾海综合整治对水动力的影响,基于普林斯顿海洋模式(POM模式)建立了广西钦州湾及茅尾海精细化水动力模式,模式的水平分辨率达到100 m,同时采用干湿网格技术考虑漫滩过程。通过数值模拟的方法,研究了茅尾海综合整治对茅尾海和外湾的潮流场以及茅尾海的纳潮量所产生的影响。结果表明:清淤一期、二期和三期工程完成后茅尾海的大潮纳潮量分别增加了6.1%,13.0%和21.7%,而平均纳潮量分别增加了3.1%,9.8%和18.1%。在茅尾海清淤的范围内,由于水深加深,大部分海区的流速均有明显减小;而在从龙门港到外湾的大部分海区,由于茅尾海清淤后纳潮量显著增大,流速明显增强,有利于钦州湾航道的维护。
In order to evaluate the hydrodynamic influence induced by the comprehensive regulation of the Maowei Sea in Qinzhou of Guangxi Province,a refined hydrodynamic model is established for the Maowei Sea based on the Princeton Ocean Model.The horizontal resolution of the model is up to 100 meters and the flooding process is considered by using wet and dry grid technology.By using this model,the influences of the Maowei Sea comprehensive regulation on the tidal field and tidal prism in the Maowei Sea are studied.The results show that after finishing Phase I,II and III of the dredging project the tidal prisms during the spring tide in the Maowei Sea increase by 6.1%,13.0%and 21.7%,respectively,and the average tidal prisms during the tidal cycle increase by 3.1%,9.8%and 18.1%,respectively.Within the scope of dredging in the Maowei Sea,the current velocity in most of the sea areas decreases due to the deepening in water depth.In most of the sea areas from the Longmen Port to the outer bay,however,the current velocity increases obviously because of the significant increase of tidal prism after dredging in the Maowei Sea,which could be in favor of the maintenance of the waterways in the Qinzhou Bay.
作者
夏长水
陈振华
韦重霄
薛宇欢
张栋
宋卫杰
张良
XIA Chang-shui;CHEN Zhen-hua;WEI Chong-xiao;XUE Yu-huan;ZHANG Dong;SONG Wei-jie;ZHANG Liang(First Institute of Oceanography,MNR,Qingdao 266061,China;Laboratory for Regional Oceanography and Numerical Modeling,Pilot National Laboratory for Marine Science and Technology(Qingdao),Qingdao 266061,China;University of Beibu Bay,Qinzhou 535000,China;Qinzhou Marine Environment Monitoring and Prediction Center,Qinzhou 535000,China;China Institute of Atomic Energy,Beijing 102413,China)
出处
《海岸工程》
2020年第3期157-168,共12页
Coastal Engineering
基金
国家重点研发计划项目——高分辨率海洋模式关键物理过程参数化方案的研发(2017YFA0604100)
海洋环境高性能数值模拟应用软件研制(2016YFB0201100)
海洋生态环境损害基线、因果关系及损害程度的判定技术方法(2016YFC0503602)。
关键词
茅尾海
钦州湾
清淤
纳潮量
Maowei Sea
Qinzhou Bay
dredging
tidal prism
