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Variability of the seawater bio-optical properties in the near-surface layer on the transition from the Baltic to the White Sea from data of satellite and shipboard measurements
EP23077
Poster Title: Variability of the seawater bio-optical properties in the near-surface layer on the transition from the Baltic to the White Sea from data of satellite and shipboard measurements
Submitted on 15 Jun 2015
Author(s): Dmitry Glukhovets
Affiliations: MIPT, SIO RAS
This poster was presented at International Ocean Colour Science Meeting
Poster Views: 817
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Poster Information
Abstract: A goal of this work is the comparative analysis of results of satellite (MODIS-Aqua) and shipboard measurements of seawater bio-optical properties in the near-surface layer, carried out during the 127-th scientific cruise of R/V "Professor Shtokman" from Kaliningrad to Arkhangelsk, 26 July – 5 August 2014. The shipboard data include spectra of seawater fluorescence induced at two excitation wavelengths (401 and 532 nm), the seawater attenuation coefficient, concentrations of chlorophyll and different phytoplankton species measured on 40 seawater samples from 0 and 4 m depth.
A good agreement between the changes in the fluorescence spectra and the spectral remote sensing reflectance Rrs() from the Baltic to the Barents Seas was observed; the main factors determining changes in the Rrs(), such as high concentration of the color dissolved organic matter (CDOM) in the Baltic Sea and coccolithophore blooms in the Barents Sea were revealed. The connection between the fluorescence spectra, chlorophyll concentration and phytoplankton is analyzed. The regional algorithm for assessment of the coccolithophore concentration in the Barents Sea from satellite data is validated.
The study was supported by the grant of the Russian Science Foundation (Project №14-17-00800), granted through P.P. Shirshov Institute of Oceanology Russian Acad.Sci.
The author thanks his scientific adviser O.V. Kopelevich; and N.V. Tsukanov, V.A. Artemyev, M.D. Kravchishina, L.A. Pautova for the provided data.
Summary: A goal of this work is the comparative analysis of results of satellite (MODIS-Aqua) and shipboard measurements of seawater bio-optical properties in the near-surface layer.References: 1. Kuznetsova O.A., Kopelevich O.V., Sheberstov S.V. et al Estimation of Chlorophyll Concentration in the Kara Sea from Data of MODIS Aqua Satellite Scanner // Issledovanie Zemli iz Kosmosa. 2013. No. 5. pp. 21-31.
2. Sheberstov S.V., Lukyanova E.A. A system for acquisition, processing, and storage of satellite and field biooptical data // Proceedings of IV international conference “Current problems in optics of natural waters”. Nizhny Novgorod. 2007. pp. 179-183.
3. Kopelevich O.V., Burenkov V.I., Vazyulya S.V. et al Problems of detection of coccolithophore blooms from satellite data // Current problems in remote sensing of the earth from space. 2012. Vol. 9. No. 5. pp. 241-250
4. Yu.A. Goldin, A.V. Shatravin, V.A. Levchenko et al Spatial variability of seawater fluorescence intensity in the western Black sea // Applied and Fundamental Hydrophysics. 2015. Vol. 8. No. 1. pp. 17-26
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