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Abstract <p>The paper presents an analysis of changes in summer precipitation characteristics in Sochi on different timescales ranging from 10-minute to seasonal averages in the recent decades. There was a negative trend in seasonal total precipitation in Sochi by 4–5% per decade during 1980–2023. No statistically significant changes in the intensity, maximum values, or frequency of extreme precipitation events at different timescales have been observed for the analyzed period. According to pluviometer data, the duration of rainfall events has also been significantly reduced, which is caused by a decrease in the number and duration of rainless pauses within individual rainfall events. A decrease in average precipitation duration has been noted when examining hourly precipitation data from ERA5 reanalysis. At the same time, there has been an increase in adverse weather events with economic losses in the region, including those related to intense precipitation. This increase can be attributed not only to improved recording of such damage but also to increased exposure to climate risks, which points to the importance of adaptation strategies to cope with extreme weather and climate events.</p>

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Changes in Summer Precipitation Characteristics in Sochi on Different Timescales in 1980–2023

  • 期刊论文

  • 发表日期：

    2025年11月1日

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  • M. A. Aleshina,
  • V. A. Semenov,
  • V. S. Vorontsova,
  • A. V. Chernokulsky,
  • M. G. Akperov,
  • N. V. Shvets

摘要

Abstract

The paper presents an analysis of changes in summer precipitation characteristics in Sochi on different timescales ranging from 10-minute to seasonal averages in the recent decades. There was a negative trend in seasonal total precipitation in Sochi by 4–5% per decade during 1980–2023. No statistically significant changes in the intensity, maximum values, or frequency of extreme precipitation events at different timescales have been observed for the analyzed period. According to pluviometer data, the duration of rainfall events has also been significantly reduced, which is caused by a decrease in the number and duration of rainless pauses within individual rainfall events. A decrease in average precipitation duration has been noted when examining hourly precipitation data from ERA5 reanalysis. At the same time, there has been an increase in adverse weather events with economic losses in the region, including those related to intense precipitation. This increase can be attributed not only to improved recording of such damage but also to increased exposure to climate risks, which points to the importance of adaptation strategies to cope with extreme weather and climate events.