The article assessed the variability of the statistical characteristics of the climate of the Kara Sea using the example of air temperature at 7 stations. Methods of trend analysis, harmonic oscillations and autocorrelation function analysis were used, and cluster analysis was carried out. The results are presented in graphical and tabular form. As a result, there is a decrease in the severity of winter at all stations of the Kara Sea for the period 1980–2021.

Eugene P. Istomin
Doctor of Technical Sciences, Professor, Director of the Institute
of Information Systems and Geotechnologies
Russian State Hydrometeorological University
79, Voronezhskaya str., St.-Petersburg, 192007, Russia
e-mail: biom@bk.ru
ORCID: 0000-0001-6247-4373

Yaroslav A. Petrov
Ph.D., Associate Professor of the Department of Applied
Informatics
Russian State Hydrometeorological University
79, Voronezhskaya str., St.-Petersburg, 192007, Russia
е-mail: yaroslav.petrov025@gmail.com
ORCID: 0000-0002-9185-441X

Irma A. Martyn
Associate Professor, Department of Applied Informatics
Russian State Hydrometeorological University
79, Voronezhskaya str., St.-Petersburg, 192007,Russia
е-mail: irma_martyn@mail.ru
ORCID: 0000-0002-4332-7308

Elena S. Novozhilova
Senior Lecturer, Department of Applied Informatics
Russian State Hydrometeorological University
79, Voronezhskaya str., St.-Petersburg, 192007, Russia
е-mail: novozhilova.elena@icloud.com

1. Istomin E.P., Petrov Ya.A., Martyn I.A., Aganov S.S., Kolbina O.N. Implementation of monitoring of the hydrometeorological situation and the structure of the database to ensure the safety of offshore facilities using GIS technologies. Information and Space. 2023;(2):95–99.
2. Martyn I.A., Fedorov D.D., Malyutin A.S. Long-term climate oscillations in the ice situation in the Arctic. In: Innovatsionnye metody matematiki i fiziki v ehkologicheskikh i gidrometeorologicheskikh issledovaniyakh: cbornik trudov Vserossiiskoi nauchno-prakticheskoi konferentsii (St. Petersburg, 7 April 2023). Zaitseva I.V., ed. St. Petersburg: RGGMU; 2023. pp. 310–318.
3. Istomin E.P., Mikheev V.L., Petrov Ya.A., Martyn I.A. Geomodeling of the limiting amplification of the wave train at the exit to the shelf. Information and Space. 2021;(3):78–85 .
4. Istomin E.P., Mikheev V.L., Petrov Ya.A., Martyn I.A. Modeling of wave processes in closed water areas of shallow water areas. Geoinformatika. 2021;(3):30-35. DOI: 10.47148/1609-364X-2021-3-30-35.