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Light absorption by non-algal particles and colored dissolved organic matter at the wavelength of 490 nm in the Black Sea in the autumn (2015 and 2016)
Author(s): N. Moiseeva; T. Churilova; T. Efimova; O. Krivenko
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Paper Abstract

Variability in light absorption by colored dissolved organic matter (ܽαCDOM(λ)),by non-algal particles (αNAP(λ)), and by colored detrital matter (αCDM(λ)) were analyzed in the coastal and deep water regions in the Black sea at the same season (Autumn) to avoid the impact of seasonal variability. The CDOM, NAP and CDM light absorption were parameterized. As result of the parameterization the two parameters were obtained (coefficient et 490 nm and slope coefficient (S):αCDOM(490) and ܵSCDOMNAP(490) and SNAP ; αCDM(490) and ܵSCDM. The CDOM contributed mainly in the ܽαCDM(490) in both coastal (79 ± 13%) and deep water (88 ± 6%) regions. It was observed high (in ~order) variability in the αNAP(490) in coastal waters due to resuspension of sediments from the bottom at shallow stations. The average αSNAP values were 0.010 nm-1 in coastal and 0.012 nm-1 in deep water regions. For all dataset the relationship between of ܽαCDM(490) and ܵSCDM was described by power function. This equation can be used for refining of the regional algorithm of ܽαCDM(λ) assessment in the Black Sea based on satellite data. The obtained in this research relative absorption of NAP and CDOM could be used for remote assessment of αNAP (λ) and ܽαCDOM(λ) in the Black Sea.

Paper Details

Date Published: 13 December 2018
PDF: 7 pages
Proc. SPIE 10833, 24th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 108336B (13 December 2018); doi: 10.1117/12.2504650
Show Author Affiliations
N. Moiseeva, The A.O. Kovalevsky Institute of Marine Biological Research (Russian Federation)
T. Churilova, The A.O. Kovalevsky Institute of Marine Biological Research (Russian Federation)
T. Efimova, The A.O. Kovalevsky Institute of Marine Biological Research (Russian Federation)
O. Krivenko, The A.O. Kovalevsky Institute of Marine Biological Research (Russian Federation)


Published in SPIE Proceedings Vol. 10833:
24th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics
Gennadii G. Matvienko; Oleg A. Romanovskii, Editor(s)

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