Russian Journal of Earth Sciences Russian Journal of Earth Sciences Russian Journal of Earth Sciences 1681-1208 72212 10.2205/2023ES02SI04 СПЕЦВЫПУСК: "ФУНДАМЕНТАЛЬНЫЕ И ПРИКЛАДНЫЕ АСПЕКТЫ ГЕОЛОГИИ, ГЕОФИЗИКИ И ГЕОЭКОЛОГИИ" SPECIAL ISSUE: "FUNDAMENTAL AND APPLIED ASPECTS OF GEOLOGY, GEOPHYSICS AND GEOECOLOGY" СПЕЦВЫПУСК: "ФУНДАМЕНТАЛЬНЫЕ И ПРИКЛАДНЫЕ АСПЕКТЫ ГЕОЛОГИИ, ГЕОФИЗИКИ И ГЕОЭКОЛОГИИ" Investigation of the Cyclicity and Trend of the Surface Air Temperature According to the Weather Station Mayak of Sukhum Investigation of the Cyclicity and Trend of the Surface Air Temperature According to the Weather Station Mayak of Sukhum https://orcid.org/0000-0003-4490-6659 Афанасьев Игорь Сергеевич Afanasyev Igor' Sergeevich igor.afanasev.199@mail.ru https://orcid.org/0009-0009-8185-9725 Хинтуба Л. В. Khintuba L. V. https://orcid.org/0009-0001-3973-0524 Экба Я. А. Ekba Ya. A. https://orcid.org/0000-0002-1345-9967 Закинян Р. Г. Zakinyan R. G. Северо-Кавказский федеральный университет North Caucasian Federal University Северо-Кавказский центр математических исследований Россия North Caucasus Center for Mathematical Research Russian Federation Институт экологии Академии наук Абхазии Абхазия Institute of Ecology of the Academy of Sciences of Abkhazia Abkhazia Абхазский государственный институт Россия Abkhaz State University Russian Federation Институт экологии Академии наук Абхазии Абхазия Institute of Ecology of the Academy of Sciences of Abkhazia Abkhazia Абхазский государственный институт Россия Abkhaz State University Russian Federation Северо-Кавказский центр математических исследований Россия North Caucasus Center for Mathematical Research Russian Federation 15 12 2023 15 12 2023 23 5 1 7 20 10 2023 27 11 2023 https://rjes.ru/en/nauka/article/72212/view

This paper analyzes the surface air temperature data for the city of Sukhum for the period 1961–2022. These values are presented as time series of average annual temperatures. As a result, we get 2 main components: trend, spectrum (including cycles). In general, the average annual temperature has a predominantly positive trend, i. e. over the entire period the temperature has increased by 1.31 degrees, which may occur against the background of global warming. Accordingly, another task of the current work was to identify cyclic components and determine their physical nature. A quasi-two-year, 5–6-year, solar activity cycle and a multi-year cycle (2–3 decades) are observed

This paper analyzes the surface air temperature data for the city of Sukhum for the period 1961–2022. These values are presented as time series of average annual temperatures. As a result, we get 2 main components: trend, spectrum (including cycles). In general, the average annual temperature has a predominantly positive trend, i. e. over the entire period the temperature has increased by 1.31 degrees, which may occur against the background of global warming. Accordingly, another task of the current work was to identify cyclic components and determine their physical nature. A quasi-two-year, 5–6-year, solar activity cycle and a multi-year cycle (2–3 decades) are observed

 surface air temperature time series trend moving average average annual temperature cycles solar activity spectral analysis No funding

Afanasyev, I. S., A. R. Komarova, R. G. Zakinyan, and A. I. Shevchenko (2022), Greenhouse effect, in Problems of Atmospheric Physics, Climatology and Environmental Monitoring: Reports of the IV International Scientific Conference (Stavropol, May 23-25, 2022), p. 256, North-Caucasus Federal University (in Russian). Afanasyev, I. S., A. R. Komarova, R. G. Zakinyan, and A. I. Shevchenko (2022), Greenhouse effect, in Problems of Atmospheric Physics, Climatology and Environmental Monitoring: Reports of the IV International Scientific Conference (Stavropol, May 23-25, 2022), p. 256, North-Caucasus Federal University (in Russian). Akhsalba, A. K., Y. A. Ekba, and S. I. Marandidi (2013), The influence of gas composition of atmospheric air of the seashore of Abkhazia, Izvestiya SFEDU. Engineering sciences, 9(146), 30-34 (in Russian). Akhsalba, A. K., Y. A. Ekba, and S. I. Marandidi (2013), The influence of gas composition of atmospheric air of the seashore of Abkhazia, Izvestiya SFEDU. Engineering sciences, 9(146), 30-34 (in Russian). Ekba, Y. A., A. K. Akhsalba, L. V. Khintuba, and K. A. Nachkebia (2020), Variability of major climate-forming factors in the territory of Abkhazia for the global warming period, Bulletin of the Academy of Sciences of Abkhazia. A series of natural sciences, pp. 172-182 (in Russian). Ekba, Y. A., A. K. Akhsalba, L. V. Khintuba, and K. A. Nachkebia (2020), Variability of major climate-forming factors in the territory of Abkhazia for the global warming period, Bulletin of the Academy of Sciences of Abkhazia. A series of natural sciences, pp. 172-182 (in Russian). Eliseev, A. V., and I. I. Mokhov (2008), Influence of volcanic activity on climate change in the past several centuries: Assessments with a climate model of intermediate complexity, Izvestiya, Atmospheric and Oceanic Physics, 44(6), 723-736 (in Russian). Eliseev, A. V., and I. I. Mokhov (2008), Influence of volcanic activity on climate change in the past several centuries: Assessments with a climate model of intermediate complexity, Izvestiya, Atmospheric and Oceanic Physics, 44(6), 723-736 (in Russian). Kendall, M., and A. Stuart (1976), Multivariate statistical analysis and time series, 736 pp., Nauka, Moscow (in Russian). Kendall, M., and A. Stuart (1976), Multivariate statistical analysis and time series, 736 pp., Nauka, Moscow (in Russian). Khintuba, L. V., and Y. V. Ekba (2018), The impact of volcanoes on the climate, in International Scientific and Practical Conference "Open Physical Readings" Abstracts of Reports Youth Section, pp. 29-30, LNU named after V. Dahl, Lugansk (in Russian). Khintuba, L. V., and Y. V. Ekba (2018), The impact of volcanoes on the climate, in International Scientific and Practical Conference "Open Physical Readings" Abstracts of Reports Youth Section, pp. 29-30, LNU named after V. Dahl, Lugansk (in Russian). Melnikova, M., A. Perdero, and E. Zalyubovsky (2020), Global climate threat and Russia’s economy in search of a special path, 69 pp., Energy Center of the Moscow School of Management SKOLKOVO, Moscow (in Russian). Melnikova, M., A. Perdero, and E. Zalyubovsky (2020), Global climate threat and Russia’s economy in search of a special path, 69 pp., Energy Center of the Moscow School of Management SKOLKOVO, Moscow (in Russian). Semenov, S. M., and I. O. Popov (2011), Comparative estimates of influence of changes in carbon dioxide, methane, nitrous oxide, and water vapor concentrations on radiation-equilibrium temperature of Earth’s surface, Russian Meteorology and Hydrology, (8), 33-34 (in Russian). Semenov, S. M., and I. O. Popov (2011), Comparative estimates of influence of changes in carbon dioxide, methane, nitrous oxide, and water vapor concentrations on radiation-equilibrium temperature of Earth’s surface, Russian Meteorology and Hydrology, (8), 33-34 (in Russian). Tarasov, B. G. (2004), On the nature of cycles of geodynamic activity and the method of their forecast, Bulletin of the Kuzbass State Technical University, Bulletin of the Kuzbass State Technical University, (6-2(44)), 3-13 (in Russian). Tarasov, B. G. (2004), On the nature of cycles of geodynamic activity and the method of their forecast, Bulletin of the Kuzbass State Technical University, Bulletin of the Kuzbass State Technical University, (6-2(44)), 3-13 (in Russian). Vityazev, V. V. (2001), Wavelet analysis of time series, 58 pp., St. Petersburg State University, St. Petersburg (in Russian). Vityazev, V. V. (2001), Wavelet analysis of time series, 58 pp., St. Petersburg State University, St. Petersburg (in Russian).