Study of ocean red tide multi-parameter monitoring technology based on double-wavelength airborne lidar system

Hong Lin; Xinming Wang; Kun Liang

doi:10.1117/12.863814

11 October 2010 Study of ocean red tide multi-parameter monitoring technology based on double-wavelength airborne lidar system

Hong Lin, Xinming Wang, Kun Liang

Author Affiliations +

Proceedings Volume 7656, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment; 765608 (2010) https://doi.org/10.1117/12.863814
Event: 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies, 2010, Dalian, China

Abstract

For monitoring and forecasting of the ocean red tide in real time, a marine environment monitoring technology based on the double-wavelength airborne lidar system is proposed. An airborne lidar is father more efficient than the traditional measure technology by the boat. At the same time, this technology can detect multi-parameter about the ocean red tide by using the double-wavelength lidar.It not only can use the infrared laser to detect the scattering signal under the water and gain the information about the red tise's density and size, but also can use the blue-green laser to detect the Brillouin scattering signal and deduce the temperature and salinity of the seawater.The red tide's density detecting model is firstly established by introducing the concept about the red tide scattering coefficient based on the Mie scattering theory. From the Brillouin scattering theory, the relationship about the blue-green laser's Brillouin scattering frequency shift value and power value with the seawater temperature and salinity is found. Then, the detecting mode1 of the saewater temperature and salinity can be established. The value of the red tide infrared scattering signal is evaluated by the simulation, and therefore the red tide particles' density can be known. At the same time, the blue-green laser's Brillouin scattering frequency shift value and power value are evaluated by simulating, and the temperature and salinity of the seawater can be known. Baed on the multi-parameters, the ocean red tide's growth can be monitored and forecasted.

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Hong Lin, Xinming Wang, and Kun Liang "Study of ocean red tide multi-parameter monitoring technology based on double-wavelength airborne lidar system", Proc. SPIE 7656, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 765608 (11 October 2010); https://doi.org/10.1117/12.863814

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KEYWORDS

Scattering

Laser scattering

LIDAR

Signal detection

Mie scattering

Particles

Infrared lasers

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