Large Ozone Hole in 2023 and the Hunga Tonga Volcanic Eruption

IF 1.9 4区地球科学 Q2 GEOCHEMISTRY & GEOPHYSICS pure and applied geophysics Pub Date : 2024-07-31 DOI:10.1007/s00024-024-03546-5

Michal Kozubek, Peter Krizan, Sunil Kumar Ramatheerthan, Jan Laštovička

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Abstract

Polar stratospheric chemistry is highly sensitive to changes in water vapor content and temperature. We identified an unusual behavior of water vapor and temperature in the southern polar winter stratosphere in 2023. The relationships between the Hunga-Tonga eruption injection of water vapor (detected in the tropics) and its transport to SH high latitudes, temperature changes and ozone anomalies at southern high latitudes are discussed, as well as the roles of zonal wind and the meridional flux of zonal mean zonal momentum. These parameters exhibit a consistent pattern in anomalous year 2023. In the winter of 2023 in the Southern Hemisphere, an unexpected decrease in ozone levels and the emergence of an excessive ozone hole were observed. This event marked one of the deepest Antarctic ozone holes with the largest area since 2011. This appears to be associated with the Hunga Tonga eruption anomalous water vapor injection. This study highlights importance of water vapor for evolution of the Antarctic stratosphere.

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2023 年的大臭氧洞和洪加汤加火山爆发

极地平流层化学对水汽含量和温度变化高度敏感。我们发现了 2023 年南极冬季平流层水汽和温度的异常行为。讨论了 Hunga-Tonga 喷发注入的水蒸气（在热带地区探测到）及其向 SH 高纬度地区的传输、温度变化和南部高纬度地区臭氧异常之间的关系，以及地带风和地带平均地带动量的经向通量的作用。这些参数在异常年 2023 年表现出一致的模式。2023 年冬季，南半球的臭氧水平意外下降，并出现了过度的臭氧洞。这是自 2011 年以来南极臭氧洞最深、面积最大的一次。这似乎与 Hunga Tonga 喷发的异常水蒸气注入有关。这项研究强调了水蒸气对南极平流层演变的重要性。

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来源期刊

pure and applied geophysics 地学-地球化学与地球物理

CiteScore

4.20

自引率

5.00%

发文量

240

审稿时长

9.8 months

期刊介绍： pure and applied geophysics (pageoph), a continuation of the journal "Geofisica pura e applicata", publishes original scientific contributions in the fields of solid Earth, atmospheric and oceanic sciences. Regular and special issues feature thought-provoking reports on active areas of current research and state-of-the-art surveys. Long running journal, founded in 1939 as Geofisica pura e applicata Publishes peer-reviewed original scientific contributions and state-of-the-art surveys in solid earth and atmospheric sciences Features thought-provoking reports on active areas of current research and is a major source for publications on tsunami research Coverage extends to research topics in oceanic sciences See Instructions for Authors on the right hand side.