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Proceedings Paper

Laser induced fluorescence technique for detecting organic matter in East China Sea
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Paper Abstract

A laser induced fluorescence (LIF) technique for fast diagnosing chromophoric dissolved organic matter (CDOM) in water is discussed. We have developed a new field-portable laser fluorometer for rapid fluorescence measurements. In addtion, the fluorescence spectral characteristics of fluorescent constituents (e.g., CDOM, chlorophyll-a) were analyzed with a spectral deconvolution method of bi-Gaussian peak function. In situ measurements by the LIF technique compared well with values measured by conventional spectrophotometer method in laboratory. A significant correlation (R2 = 0.93) was observed between fluorescence by the technique and absorption by laboratory spectrophotometer. Influence of temperature variation on LIF measurement was investigated in lab and a temperature coefficient was deduced for fluorescence correction. Distributions of CDOM fluorescence measured using this technique in the East China Sea coast were presented. The in situ result demonstrated the utility of the LIF technique for rapid detecting dissolved organic matter.

Paper Details

Date Published: 13 October 2017
PDF: 11 pages
Proc. SPIE 10422, Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions 2017, 104220Y (13 October 2017); doi: 10.1117/12.2277105
Show Author Affiliations
Peng Chen, The Second Institute of Oceanography, SOA (China)
Tianyu Wang, The Second Institute of Oceanography, SOA (China)
Delu Pan, The Second Institute of Oceanography, SOA (China)
Haiqing Huang, The Second Institute of Oceanography, SOA (China)


Published in SPIE Proceedings Vol. 10422:
Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions 2017
Charles R. Bostater Jr.; Stelios P. Mertikas; Xavier Neyt; Sergey Babichenko, Editor(s)

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