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Abstract <p>Two lidar stations of Institute of Atmospheric Optics, Siberian Branch, Russian Academy of Sciences, recorded pronounced aerosol layers in the stratosphere over Tomsk on February 5 and 6, 2025. The analysis of lidar and additional meteorological information showed the occurrence of a rather rare phenomenon for middle latitudes, i.e., polar stratospheric clouds, at that time. The constructed back trajectories of air masses at the altitudes of the formation of polar stratospheric clouds over Tomsk showed that abnormally cold air masses were brought from the polar regions of Norway and Greenland. The results can be useful for specialists in atmospheric physics, climatology, and environmental protection.</p>

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Observation of Polar Stratospheric Clouds in the Stratosphere over Tomsk in February 2025

  • 期刊论文

  • 发表日期：

    2026年2月1日

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  • A. V. Nevzorov,
  • S. I. Dolgii,
  • A. P. Makeev,
  • V. N. Marichev,
  • D. A. Bochkovsky,
  • N. S. Salnikova,
  • O. V. Kharchenko

摘要

Abstract

Two lidar stations of Institute of Atmospheric Optics, Siberian Branch, Russian Academy of Sciences, recorded pronounced aerosol layers in the stratosphere over Tomsk on February 5 and 6, 2025. The analysis of lidar and additional meteorological information showed the occurrence of a rather rare phenomenon for middle latitudes, i.e., polar stratospheric clouds, at that time. The constructed back trajectories of air masses at the altitudes of the formation of polar stratospheric clouds over Tomsk showed that abnormally cold air masses were brought from the polar regions of Norway and Greenland. The results can be useful for specialists in atmospheric physics, climatology, and environmental protection.