Results of Hydrooptical Field Studies in the Barents and Kara Seas in September 2022

The presented results were obtained during the 1st stage of the 89th cruise of the R/V «Akademik Mstislav Keldysh» in the Barents and Kara seas in September 2022. The spatiotemporal variability of the seawater bio-optical characteristics distributions was studied in order to identify climatic and interannual changes. An array of hydrooptical measurement data was obtained, including the results of measurements performed using a flow-through complex and a polarization lidar, as well as data on light fields and seawater bio-optical characteristics. In the Kara Sea two under-aircraft measurement sessions were performed together with the ‘Optik’ Tu-134 flying laboratory. This array will be used to validate regional satellite algorithms.