Gontovaya I.V., Gavrilova E.V., Ocheretny M.A. WIND PERFORMANCE IN THE NORTH-WEST PART OF THE CASPIAN SEA // Arid Ecosystems. 2025. Vol. 31. № 2 (103). P. 13-19. | PDF

The article considers regional features of the wind regime in the north-western part of the Caspian Sea. The seasonal and annual dynamics of the main characteristics of the wind regime over a multi-year period and current trends in their change are assessed. An analysis of the average wind time series showed that easterly winds dominate the northwestern part of the Caspian Sea, with an average repeatability of 26%. Despite the stability throughout the year, there is some seasonal variability. Other winds include the southeast, west and northwest. Positive seasonal and annual dynamics are observed in southeast winds. Typical features can also be seen for the average wind speed between 1991 and 2020. Regional trend estimates based on time series of average annual air temperatures and average wind speeds show that the average annual air temperature increases with the average annual temperature. The average wind speed increases. The main contribution of the trend to the change of wind speed in the directions belongs to the spring and winter seasons. The northwestern part of the Caspian Sea is dominated by weak winds, most often in gradations of 4-5 m/s. Average wind speeds of 15 m/s are observed in all seasons, in spring and autumn their repeatability is highest. The results are of practical interest as the need for marine climatological data arises from different activities.

Keywords: Caspian Sea, climate, regional changes, wind mode, wind direction and speed, repeatability, practical value, difference of norms, deviation.

DOI: 10.24412/1993-3916-2025-2-13-19

EDN: CVVXMI