The study of the characteristics of internal solitary waves happened in the Malacca Strait is an urgent problem for submarine, ship navigation and marine engineering. Based on SAR remote sensing data obtained from the high spatial resolution Sentinel-1 and GF-3, the internal solitary wave characteristics of the Malacca Strait are investigated. By use of 20 Sentinel-1 SAR images from June 2015 to December 2016 and 24 GF-3 images from April 2018 to March 2019, the spatial distribution characteristics of internal solitary wave s are statistically analyzed. It is found that the internal solitary waves are usually in the form of wave packets and single solitary waves, and the maximum crest length of the leading wave can reach 39 km. The amplitude and group velocity of internal solitary wave s can be calculated by the inversion model of high-order nonlinear Schrodinger (NLS) equation, and the calculated amplitude of the internal solitary wave s and the propagation group velocity of the wave packets range from 4.7 m to 23.9 m and 0.12 m/s to 0.40 m/s, respectively. The range of phase velocity of single internal solitary waves obtained by KdV equation is 0.26 m/s to 0.60 m/s. In general, the amplitude and the velocity of internal solitary wave s in Malacca strait are related to the topography.

中文翻译：

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基于Sentinel-1和GF-3卫星SAR数据的马六甲海峡内部孤立波特征研究。

对马六甲海峡发生的内部孤立波特征的研究是潜艇，船舶导航和海洋工程的紧迫问题。基于从高分辨率Sentinel-1和GF-3获得的SAR遥感数据，研究了马六甲海峡的内部孤立波特征。利用2015年6月至2016年12月的20张Sentinel-1 SAR图像和2018年4月至2019年3月的24幅GF-3图像，对内部孤立波的空间分布特征进行了统计分析。发现内部孤立波通常以波包和单个孤立波的形式出现，且前导波的最大波峰长度可以达到39 km。内孤立波s的振幅和群速度可以通过高阶非线性Schrodinger（NLS）方程的反演模型来计算，而内孤立波s的振幅和波包的传播群速度的范围为4.7。 m到23.9 m和0.12 m / s到0.40 m / s。通过KdV方程获得的单个内部孤立波的相速度范围为0.26 m / s至0.60 m / s。通常，马六甲海峡内孤立波的振幅和速度与地形有关。通过KdV方程获得的单个内部孤立波的相速度范围为0.26 m / s至0.60 m / s。通常，马六甲海峡内孤立波的振幅和速度与地形有关。通过KdV方程获得的单个内部孤立波的相速度范围为0.26 m / s至0.60 m / s。通常，马六甲海峡内孤立波的振幅和速度与地形有关。