The results of studying the natural fouling of flat quartz glasses, as well as fouling on the beam attenuation coefficient (BAC) meters’ flat surfaces of objective lens and triple-prism are presented, using the method of spectrophotometry under the same conditions during the plant cover formation. The method based of the obtained empirical data is proposed for registration the biofouling contribution.
The results of hydro-optical investigations performed in the spring-summer period of 2017 in the northern part of the Black Sea are considered. It is shown that during the spring survey (22.04.17 - 6.05.17), low concentrations of the total suspended matter were observed in the surface layer. The subsurface maximum in the vertical distributions of the total suspended matter concentrations was not present. In summer (14.06.17 - 4.07.17), due to intensive coccolithophore bloom, a higher content of suspended particles was observed. It was found that in summer the vertical structure of the total suspended matter concentration was characterized by a well-pronounced maximum at the depth close to the depth of vertical temperature and density gradients maxima.
The results of the beam attenuation spectra measurements performed in August and September 2015 in the area of wastewater discharge in the southern part of the Heracleian Peninsula of the Black Sea are presented. The studies were conducted by sounding beam attenuation meter, developed in the Department of Optics and Biophysics of MHI RAS. Methods of measurement allowed to detect the presence of flooded streams pollutants in water in a real time.