ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa
CURRENT PROBLEMS IN REMOTE SENSING OF THE EARTH FROM SPACE

  

Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2019, Vol. 16, No. 2, pp. 173-185

Seasonal and long-term dynamics of primary production in the Sea of Azov from MERIS data

S.V. Berdnikov 1 , V.V. Kulygin 1 , L.V. Dashkevich 1 
1 Federal Research Centre the Southern Scientific Center RAS, Rostov-on-Don, Russia
Accepted: 18.03.2019
DOI: 10.21046/2070-7401-2019-16-2-173-185
This paper is devoted to the study of the primary production in the Sea of Azov from the MERIS data (for the whole period of its operation). The method of primary production assessment is based on depth-integrated mathematical model. The model has two input parameters: chlorophyll a concentration in the surface layer and transparency (Secchi disk depth). Regional algorithm for highly productive waters was used to assess the chlorophyll a concentration in the Sea of Azov by MERIS data. Transparency was determined by the standard MERIS processing product ― the concentration of total suspended matter (TSM), and the empirical relationship between transparency and TSM. For the first time the long-term seasonal and annual average spatial distributions of primary production for the Sea of Azov in the modern period were obtained. The features of the primary production’ dynamics for the period 2003–2011 were considered. It was noted that starting from 2006 the most productive zones shifted to the central part of the Taganrog Bay. Average seasonal values of primary production by sea regions were assessed. The average annual primary production (from March to November) in the Sea of Azov for considered period is 247 gC•m–2•year–1.
Keywords: primary production, the Sea of Azov, satellite images, MERIS spectrometer
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