Annual variability in light absorption by particles and colored dissolved organic matter in the Crimean coastal waters (the Black Sea)

摘要

Bio-optical studies were carried out in coastal waters around the Crimea peninsula in different seasons 2016. It was shown that variability of chlorophyll a concentration (Chl-a), light absorption by suspended particles (α_p(λ)), phytoplankton pigments (α_(ph)(λ)), non-algal particles (α_(nap)(λ)) and by colored dissolved organic matter (α_(cdom)(λ)) in the Crimea coastal water was high (-order of magnitudes) in all seasons 2016. Relationships between α_p(440), α_(Ph)(440) and Chl-a were obtained and their seasonal differences were analyzed. Spectral distribution of α_(nap)(λ) and α_(cdom)(a.) were parameterized. Seasonality in α_(DOM)(λ) parameterization was revealed, but - in α_(nap)(λ) parameterization was not revealed. The budget of light absorption by α_(ap)(λ), α(nap)(λ)  α_(CDOM)(λ) at 440 nm was assessed and its seasonal dynamics was analyzed.