Zoning of the Barents and Kara Seas by surface air temperature changes and variability. Natural climatic seasons
https://doi.org/10.30758/0555-2648-2025-71-4-428-444
Аннотация
Studies of the present-day Arctic climate are becoming increasingly relevant and in high demand in the light of the observed global warming and the expansion of long-term programs for the development of the Arctic regions. A quantitative assessment of changes and variability in surface air temperature (SAT) is presented for the climate norm period of 1991–2020, based on data from 31 meteorological stations (MSs), which reflect the diversity of climatic conditions in the area studied. Average monthly SAT values were taken as indicators of changes in the thermal regime, and the standard deviations (SD) of average monthly SAT were used as indicators of the thermal regime variability. The annual course of SAT (one maximum and one minimum) mainly reflects the radiation factor. The annual course of SD (in the northern part of the area — one maximum and one minimum, in the southern part — two maxima and two minima) reflects the patterns of the atmospheric and ocean circulation and the type of the underlying surface. The assessment of the changes and variability in the thermal regime of the surface atmosphere was based on a comprehensive analysis of the annual cycle of indicators on the SAT-SD plane using closed SAT-SD curves characterizing annual and seasonal cycles. 31 SAT- SD curves were classified, and the corresponding regions of the Barents and Kara Seas were identified. A typical SAT-SD curve was obtained for each region. The boundaries of natural climatic seasons (NCS) were determined based on a comparative analysis of the seasonal cycle of SAT-SD indicators and the absolute SAT-SD values characteristic of different seasons within each region. Zoning and determining the duration of the NCS refine the general understanding of the climate of the Western sector of the Arctic.
Ключевые слова
Barents Sea,
Kara Sea,
climate change,
climate variability,
natural climatic seasons,
seasonal zoning
При поддержке: The work was carried out with the financial support of the Russian Science Foundation grant No. 24-27-00112 “Modern changes in the Arctic climate and extreme weather fluctuations in the western sector of the Northern Sea Route”.
Об авторах
T. K. Karandasheva
State Scientific Center of the Russian Federation Arctic and Antarctic Research Institute
Россия
Россия
St. Petersburg
B. V. Ivanov
State Scientific Center of the Russian Federation Arctic and Antarctic Research Institute; Saint Petersburg State University
Россия
Россия
St. Petersburg
A. D. Revina
State Scientific Center of the Russian Federation Arctic and Antarctic Research Institute
Россия
Россия
St. Petersburg
I. A. Ilyushchenkova
State Scientific Center of the Russian Federation Arctic and Antarctic Research Institute
Россия
Россия
St. Petersburg
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Рецензия
Для цитирования:
Karandasheva T.K., Ivanov B.V., Revina A.D., Ilyushchenkova I.A. Zoning of the Barents and Kara Seas by surface air temperature changes and variability. Natural climatic seasons. Проблемы Арктики и Антарктики. 2025;71(4):428-444. https://doi.org/10.30758/0555-2648-2025-71-4-428-444
For citation:
Karandasheva T.K., Ivanov B.V., Revina A.D., Ilyushchenkova I.A. Zoning of the Barents and Kara Seas by surface air temperature changes and variability. Natural climatic seasons. Arctic and Antarctic Research. 2025;71(4):428-444. https://doi.org/10.30758/0555-2648-2025-71-4-428-444
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