The contrast characteristics of sub-mesoscale eddies in the area of the Tumen River outflow into the Peter the Great Bay (Sea of Japan / East Sea) are analyzed from satellite ocean color data (remote sensing reflectance spectra and estimates of the concentration of chlorophyll-a). It was shown that during the study period, the contrast-to-noise ratio based on the calculation of the concentration of chlorophyll-a using bio-optical algorithms have greater values compared to the contrasts calculated from sea surface temperature data. The spectral ranges of the best contrast-to-noise ratio and the depth of formation of the satellite image of eddies are also determined.
The article explores the possibility of detecting signs of internal waves in the southern part of the Sea of Japan (East). An analysis of the motion of an internal wave packet in the southern part of the Sea of Japan (East) was carried out using medium-resolution satellite data from a GOCI radiometer installed on a COMS geostationary satellite. The spatiotemporal characteristics of internal waves are estimated with modeling of the corresponding vertical distributions of chlorophyll-a using oceanographic data and measurements. The approximate amplitudes of the internal waves and their comparative analysis are calculated with the additional use of data from the reanalysis of the HYCOM model.
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