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<p>Climate change has increased the Earth’s mean atmospheric temperature, leading to changes in atmospheric thickness. These variations affect precipitation, as thicker atmospheres result in more liquid precipitation, and thinner atmospheres lead to solid precipitation. This study examines the impact of global warming on Canada’s atmospheric thickness. We analyzed geopotential height data from 1951 to 2022, as well as air temperature and Turbulent Kinetic Energy (TKE) data from 1975 to 2022. The research period was divided into six 12-year intervals for detailed analysis. Results showed minimal changes in atmospheric thickness from 1951 to 1998, followed by a significant increase from 1999 to 2022, confirming the presence of positive anomalies. The study found that 100% of Canada experienced a rise in atmospheric thickness, with 96.43% of the increase being statistically significant. This fact demonstrates that global warming has led to greater atmospheric thickness over Canada, increasing the potential for more intense rainfall and changes in precipitation patterns. The analysis of TKE maps also showed that Canada experienced a period of calm from 1999 to 2010. However, after 2011, the thermal turbulence island in Eastern Canada expanded, indicating increased atmospheric disturbances at the 850&#xa0;hPa level. The 850&#xa0;hPa isotherm maps from 1975 to 2022 revealed considerable changes, notably between 1999 and 2022, showing a northward trend. The four, eight, and twelve °C isotherms have all shifted northward, with the twelve °C isotherm changing by 4–6 degrees toward the northern latitudes.</p>

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Exploring the effects of environmental changes on atmospheric thickness

  • 期刊论文

  • 发表日期：

    2026年1月23日

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  • Saadoun Salimi,
  • Enayat Asadolahi,
  • Saeid Homayouni,
  • Taha B.M.J. Ouarda

摘要

Climate change has increased the Earth’s mean atmospheric temperature, leading to changes in atmospheric thickness. These variations affect precipitation, as thicker atmospheres result in more liquid precipitation, and thinner atmospheres lead to solid precipitation. This study examines the impact of global warming on Canada’s atmospheric thickness. We analyzed geopotential height data from 1951 to 2022, as well as air temperature and Turbulent Kinetic Energy (TKE) data from 1975 to 2022. The research period was divided into six 12-year intervals for detailed analysis. Results showed minimal changes in atmospheric thickness from 1951 to 1998, followed by a significant increase from 1999 to 2022, confirming the presence of positive anomalies. The study found that 100% of Canada experienced a rise in atmospheric thickness, with 96.43% of the increase being statistically significant. This fact demonstrates that global warming has led to greater atmospheric thickness over Canada, increasing the potential for more intense rainfall and changes in precipitation patterns. The analysis of TKE maps also showed that Canada experienced a period of calm from 1999 to 2010. However, after 2011, the thermal turbulence island in Eastern Canada expanded, indicating increased atmospheric disturbances at the 850 hPa level. The 850 hPa isotherm maps from 1975 to 2022 revealed considerable changes, notably between 1999 and 2022, showing a northward trend. The four, eight, and twelve °C isotherms have all shifted northward, with the twelve °C isotherm changing by 4–6 degrees toward the northern latitudes.