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Experimental investigation on the optical remote sensing images of internal solitary waves with a smooth surface
- Source :
- Acta Oceanologica Sinica. 38:124-131
- Publication Year :
- 2019
- Publisher :
- Springer Science and Business Media LLC, 2019.
-
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.
- 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
Subjects
Details
- ISSN :
- 18691099 and 0253505X
- Volume :
- 38
- Database :
- OpenAIRE
- Journal :
- Acta Oceanologica Sinica
- Accession number :
- edsair.doi...........2f1e3aa3292aadc8a2e0814909ce42b2