The Xiamen Symposium on Marine Environmental Sciences (XMAS 2025)

Carbon dioxide is a major greenhouse gas whose atmospheric concentration is regulated, among other things, by the interaction processes between the atmosphere and the ocean. It was found that the concentration in the Antarctic atmosphere increased by 3.7% between 1957 (315 ppm) and 1971 (380 ppm). This work is devoted to the study of the influence of atmospheric internal gravity waves (IGW) on the vertical turbulent fluxes of heat, momentum and CO2 concentration in the surface layer of the East Antarctica atmosphere. These studies were carried out on the basis of the analysis of measurements of meteorological parameters (wind speed, air temperature), carbon dioxide concentration and ocean surface temperature obtained during the ship's stay at the Russian Antarctic stations Progress and Mirny. Although the ocean is an active sink for carbon dioxide, the presence of ice stops the active exchange of carbon between the atmosphere and the ocean. The difference in CO2 concentration was recorded as the ship moved from the open sea zone to the fast ice zone. During the ship's first visit to the Progress station (stay in the Tala Bay area on 1 and 2 January 2023), an increase in CO2 concentration was clearly visible when the underlying surface changed by an average of 10 ppm. During the ship's second visit to Progress station on 28-29 January 2023, an increase in CO2 concentration from 355 ppm to levels above 365 ppm was also observed.