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Proceedings Paper

Assessment of seawater optical characteristics in the upper 200 m of ocean on their subsurface values
Author(s): Oleg Victorovic Kopelevich; Olga Vladimirov Prokhorenko
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Paper Abstract

The specific goal of this work is to develop a model and algorithms of using the optical remote sensing and/or the Secchi disk depth data for an assessment of sea water optical characteristics up to 200 m taking into account the vertical stratification. Measurement data of the scattering coefficient b(550) and of the volume scattering function at 1 degree(s), 6 degree(s), 45 degree(s) angles at 550 nm as well as of the absorption coefficient a(390), a(430) at 390 and 430 nm in the Atlantic, Pacific and Indian Oceans were grouped at five layers and were statistically analyzed. Relative standard errors of the a(390), a(430), b(550) values being calculated for deeper layers by their values at 0 - 10 m layer are estimated as 12 - 35%. A model is also developed to estimate the values of the scattering coefficient in the upper 200 m through the Secchi disk depth; the values of the volume scattering function for different layers can be assessed by using the mean scattering phase functions calculated for clear and turbid waters. The spectral absorption coefficients in the upper 200 m can be evaluated in principle by values of the diffuse coefficient KD(490) at 0 - 10 m layer.

Paper Details

Date Published: 26 October 1994
PDF: 11 pages
Proc. SPIE 2258, Ocean Optics XII, (26 October 1994); doi: 10.1117/12.190108
Show Author Affiliations
Oleg Victorovic Kopelevich, P. P. Shirshov Institute of Oceanology (Russia)
Olga Vladimirov Prokhorenko, P. P. Shirshov Institute of Oceanology (Russia)

Published in SPIE Proceedings Vol. 2258:
Ocean Optics XII
Jules S. Jaffe, Editor(s)

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