4D IOPs profiles of upper 70 m layer of the Black Sea: bio-argo floats and ocean color satellite products

Abstract

A statistical analysis of profiles from 0 to 70 meters of potential temperature and main bio-optical characteristics of the Black Sea was performed: chlorophyll a concentration, particle backscattering coefficient at 700 nm, the concentration of the colored component of dissolved organic matter, obtained as a result of long-term measurements from three bio-argo floats. The analysis made it possible to describe the profiles of the above parameters, as well as their dynamics during the year. In comparison with the obtained profiles previously used in the model, calculations showed their higher accuracy. The last made it possible, in conjunction with satellite, measurements more accurately restore the vertical structure of the bio-optical characteristics of the upper layer of the Black Sea from September 1997 to December 2018.