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Dissolved Organic Matter of the Surface Water Layer of Gelendzhik Bay in September 2021 According to Fluorimetry and Lidar Measurements

  • MARINE CHEMISTRY
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Oceanology Aims and scope

Abstract

We present the results of optical studies of organic matter in the surface water layer of Gelendzhik Bay and adjacent areas of the Black Sea. The efficiency of remote laser sensing for determining the relevant grid of sampling stations is shown. A weak contribution of terrigenous dissolved organic matter (DOM) has been established. A slight increase in the concentration of humic substances was demonstrated near the mouth of the Su-Aran River. The maximal content of biolabile DOM is typical for coastal regions in Gelendzhik Bay. In the eastern part of the bay high levels of DOM, particulate organic matter (POM), as well as the maximum content of DOM and POM together, were observed on the basis of fluorescent lidar data.

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ACKNOWLEDGMENTS

The authors thank Andrey Zatsepin and Petr Zavyalov for their comprehensive assistance in organizing the work on the project and Alexander Grabovsky and Lev Yakushkin for their help in carrying out expeditionary work.

Funding

The work was carried out within the framework of a state order of the Ministry of Science and Education of Russia (subject FMWE-2021-0001), as well as with the support of grants from the Russian Foundation for Basic Research (no. 19-55-80004 BRICS_t, organization of marine expeditionary research and lidar survey) and the Russian Science Foundation (no. 21-77-10 064, PARAFAC analysis of DOM fluorescence spectra).

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Correspondence to A. N. Drozdova.

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Drozdova, A.N., Pelevin, V.V., Krylov, I.N. et al. Dissolved Organic Matter of the Surface Water Layer of Gelendzhik Bay in September 2021 According to Fluorimetry and Lidar Measurements. Oceanology 62, 765–772 (2022). https://doi.org/10.1134/S0001437022060030

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  • DOI: https://doi.org/10.1134/S0001437022060030

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