Seasonal and Long-Term Dynamics of the Chlorophyll
Concentration in the Black Sea according to Satellite
Observations

Z. Z. Finenko^a, V. V. Suslin^b, and I. V. Kovaleva^a

^a Institute of Biology of the Southern Seas, Sevastopol, Russia

^b Marine Hydrophysical Institute, Sevastopol, Russia

e-mail: zosim_finenko@mail.ru

Received June 12, 2013; in final form, October 7, 2013

Abstract—The spatial and temporal variability of the chlorophyll (Chl) concentration in the surface water layer
of the Black Sea in 1998–2008 has been analyzed using the data obtained by the SeaWiFS satellite sensor. In
the deep-sea areas, the seasonal pattern of the Chl concentration is represented by a U-shape curve. The maxi-
mal concentrations are observed in the winter–spring and autumn periods, while the minimal, in the summer-
time. In the northwestern Black Sea, the maximal concentrations are registered in mostly the summer and
autumn periods. Pronounced interannual variability is found for the summer concentrations of Chl observed for
an 11-year period. After a cold winter, the concentration of Chl in the spring period is 3@@5times higher
compared to the mild-winter years. In December–March, a negative correlation between the water temperature
and the average Chl concentration is registered.

DOI: 10.1134/S0001437014050063

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