基于变系数模型的吕宋海峡海洋内波模拟研究

Simulation investigation on the nonlinear interaction of internal waves in Luzon Strait via the variable-coefficient model

此文主要是利用变系数Gardner方程的双孤子解对吕宋海峡海域的海洋内波的非线性相互作用进行模拟研究,展示弹性碰撞在合成孔径雷达(SAR)图像上的信号特征,同时研究耗散项、微扰项和色散项对海洋内波弹性碰撞引起的表层流速的影响,取得与真实SAR图像较一致的结果。

Utilizing the analytical two-soliton solutions of the variable-coefficient Gardner equation including the quadratic and cubic terms,the nonlinear interaction of ocean internal waves is investigated in this paper.In the Luzon Strait,the variation of signature characteristic for the elastic interaction on SAR image is discussed.Furthermore,the effects of dissipative,perturbed and dispersive terms on the nonlinear interaction of internal waves and horizontal velocity of the ocean surface current are also presented,which are consistent with the characteristic on the SAR images.