| Mei Yuan,Wang Jing,Huang Songsong,Mu Haidi,Chen Xu. 2019. Experimental investigation on the optical remote sensing images of internal solitary waves with a smooth surface. Acta Oceanologica Sinica, 38(6):124－131 |
| Experimental investigation on the optical remote sensing images of internal solitary waves with a smooth surface |
| 光滑表面内孤立波光学遥感图像的实验研究 |
| Received:March 01, 2018 |
| DOI：10.1007/s13131-019-1387-5 |
| Key words:internal solitary wave optical remote sensing image dark pattern half wave width wave factors |
| 中文关键词: 内孤立波 光学遥感图像 暗纹 半波宽度 波要素 |
| 基金项目:The National Key Research and Development Program of China under contract No. 2017YFC1405600; the National Natural Science Foundation of China under contract No. 41476001. |
| Author Name | Affiliation | E-mail | | Mei Yuan | College of Information Science and Engineering, Ocean University of China, Qingdao 266100, China | | | Wang Jing | College of Information Science and Engineering, Ocean University of China, Qingdao 266100, China | wjing@ouc.edu.cn | | Huang Songsong | College of Information Science and Engineering, Ocean University of China, Qingdao 266100, China | | | Mu Haidi | College of Oceanic and Atmospheric Sciences, Ocean University of China, Qingdao 266100, China | | | Chen Xu | College of Oceanic and Atmospheric Sciences, Ocean University of China, Qingdao 266100, China | |
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| Abstract: |
| The parameter inversion of internal solitary waves (ISWs) based on optical remote sensing images is a key work. A new approach is proposed and demonstrated for simulating the optical remote sensing images of ISWs with a smooth surface in the laboratory. An optical remote sensing simulation system used to detect ISWs is constructed by a two-dimensional ISW flume, a LED (light emitting diode) light source and two CCD (charge coupled device) cameras. The optical remote sensing images of the horizontal surface and ISWs propagation images of a vertical side are detected simultaneously, which aims to explore the response of optical remote sensing corresponding to ISWs with the smooth surface. The results show that during the propagation of ISWs, dark pattern images are obtained by CCD 1 camera. The characteristics of the dark patterns vary along with the incident angle of the light source. The characteristic parameters of the optical remote sensing images correspond to the wave factors of vertical profiles. The experiment also shows a positive correlation between the dark pattern width and the half wave width under different amplitudes of ISWs. The system has the advantages of clear phenomenon and high repeatability, which provides the scientific basis for quantitative investigation on imaging mechanism of ISW by optical remote sensing. |
| 中文摘要: |
| 基于光学遥感图像的内孤立波参数反演是一项重要的工作。本文在实验室条件下提出一种新方法用于模拟光滑表面情况下内孤立波的光学遥感成像。基于二维内波水槽、LED平板面光源和CCD相机搭建仿真光学遥感系统探测内孤立波。水平表面的光学遥感图像和垂向内孤立波传播图像被同时探测，旨在探讨在光滑表面下，光学遥感与内孤立波的响应。结果表明，内孤立波传播经过时，CCD1相机获得暗纹，暗纹的特性随光源入射角的变化而变化。光学遥感特征参数和垂向波要素相对应。实验还显示光学遥感图像的暗纹宽度与内孤立波的半波宽度在不同内孤立波振幅下呈现正相关关系。该系统有着现象清晰，重复性高的优点，为定量研究光学遥感成像机理提供科学依据。 |
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