一种基于表面状态参数的三维海洋动力学模型数值求解方法*
李自立(1979—), 男, 广西桂林人, 副教授, 博士研究生,现从事海洋雷达信号的研究以及教学工作。E-mail: zlienishi@ mailbox.gxnu.edu.cn |
Copy editor: 孙淑杰
收稿日期: 2019-03-20
要求修回日期: 2019-05-22
网络出版日期: 2020-01-09
基金资助
国家自然科学基金项目(61661009)
版权
A numerical method for solving the three-dimensional ocean dynamics model based on surface state parameters
Received date: 2019-03-20
Request revised date: 2019-05-22
Online published: 2020-01-09
Supported by
National Natural Science Foundation of China(61661009)
Copyright
李自立 , 刘奥琦 , 莫旭涛 . 一种基于表面状态参数的三维海洋动力学模型数值求解方法*[J]. 热带海洋学报, 2020 , 39(1) : 12 -19 . DOI: 10.11978/2019029
The real-time motion state of large-scale surface ocean can be obtained by remote sensing technology, while the motion state of the interior ocean can only be obtained by the fixed point observation, which cannot achieve the real-time monitoring of a large area. Based on the basic principles of ocean dynamics, we construct a relationship model between ocean surface and internal motion state in three-dimensional space under the barotropic shallow water continental shelf model. Based on the data of ocean surface velocity and direction detected by remote sensing, combining with the state parameters of wave height and speed, we use the finite difference method to obtain the information of speed and direction of the undercurrent. The inversion results conform to the law of ocean dynamics, reflect the overall distribution of the undercurrent and expand the application range of radar remote sensing.
图1 两种网格模型下的速度反演曲线a. 13:00时刻的速度反演; b. 16:00时刻的速度反演 Fig. 1 Inversion curves of velocity under the two grid models. a) Inversion of velocity at 13:00; b) inversion of velocity at 16:00 |
图3 两种网格模型下反演与实测流速对比曲线a. 13:00时刻的流速对比; b. 16:00时刻的流速对比 Fig. 3 Comparison curves of the inversion velocity and the measured velocity under the two grid models. a) Velocity comparison at 13:00; b) velocity comparison at 16:00 |
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