1. Experimental investigation on the optical remote sensing images of internal solitary waves with a smooth surface
- Author
-
Xu Chen, Yuan Mei, Jing Wang, Songsong Huang, and Haidi Mu
- Subjects
Physics ,010504 meteorology & atmospheric sciences ,Astrophysics::Cosmology and Extragalactic Astrophysics ,Half wave ,Aquatic Science ,Simulation system ,010502 geochemistry & geophysics ,Oceanography ,Positive correlation ,01 natural sciences ,Smooth surface ,law.invention ,Amplitude ,Light source ,law ,Charge-coupled device ,0105 earth and related environmental sciences ,Remote sensing ,Light-emitting diode - 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.
- Published
- 2019