Abstract
The paper presents the comparison results of detailed gas-geochemical surveys carried out in the Alekseev Bight (Peter the Great Bay, Sea of Japan) in 1989 and 2022 aimed at studying the distribution of methane and carbon dioxide in waters of the Alekseev Bight. CTD sounding was performed to measure temperature and salinity using an YSI CastAway CTD probe. Based on the available geological information and prior research, the main patterns were identified in the distribution of gas geochemical fields in the Alekseev Bight (Peter the Great Bay). The results obtained are in demand both in theoretical studies of gas geochemical field distribution on the earth’s surface in connection with seismotectonic and geological features of the region, and in the practice of development of methods and technologies for measuring balance between major greenhouse gas emissions and uptake. The results are also important for the implementation of research programs within the «climate agenda».
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