Fluorescence extraction from reflectance spectra of ocean water using polarization discrimination

Jing Zhou; Alexander Gilerson; Fred Moshary; Barry Gross; Samir Ahmed

doi:10.1117/12.667897

2 February 2006 Fluorescence extraction from reflectance spectra of ocean water using polarization discrimination

Jing Zhou, Alexander Gilerson, Fred Moshary, Barry Gross, Samir Ahmed

Proceedings Volume 6031, ICO20: Remote Sensing and Infrared Devices and Systems; 603107 (2006) https://doi.org/10.1117/12.667897
Event: ICO20:Optical Devices and Instruments, 2005, Changchun, China

Abstract

A technique is described here in which the polarization properties of elastically scattered light and the unpolarized nature of excited fluorescence are utilized to extract white light induced chlorophyll fluorescence component from the reflectance spectra of sea water. This technique was tested and shown to be effective for retrieval of the chlorophyll fluorescence in the 685 nm regions from reflectance of water dominated by chlorophyll pigments. Simulations based on Mie scattering and semi-empirical model of reflectance also support the validity of this approach. In simulations for a wide range of chlorophyll concentrations from 5 to 50 mg/m³, the extracted fluorescence spectra through modeling matches very well with the input synthetic chlorophyll fluorescence. Compared with the traditional baseline subtraction method, this technique works for both case I and case II waters and the extracted fluorescence amplitude shows higher accuracy.

Citation Download Citation

Jing Zhou, Alexander Gilerson, Fred Moshary, Barry Gross, and Samir Ahmed "Fluorescence extraction from reflectance spectra of ocean water using polarization discrimination", Proc. SPIE 6031, ICO20: Remote Sensing and Infrared Devices and Systems, 603107 (2 February 2006); https://doi.org/10.1117/12.667897

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