在北极地区追踪臭氧回收的标志 臭氧回收
Sathyanath Anjali1, Jayanarayanan Kuttippurath2
1CORAL, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India.
Scientific reports
|October 9, 2025
概括
根据1988-2024年的卫星和地面数据,北极平流层臭氧在上层和总柱臭氧中显示出显著的积极趋势. 然而,较低的平流层恢复签名尚未明显.
科学领域:
- 大气科学 大气科学
- 臭氧层研究 臭氧层研究
- 气候变化研究 气候变化研究
背景情况:
- 北极平流层是地球气候系统的关键组成部分.
- 了解臭氧趋势对于评估大气健康和紫外线辐射水平至关重要.
- 长期监测对于检测变化和恢复模式至关重要.
研究的目的:
- 分析从1988年到2024年北极平流层臭氧的长期趋势.
- 评估不同平流层的臭氧恢复特征.
- 评估像2020年臭氧层消耗等事件对趋势估计的影响.
主要方法:
- 利用卫星数据 (SWOOSH,SAGE-CCI-OMPS) 进行上层平流层臭氧分析.
- 使用臭氧探测器和地面测量来评估全柱臭氧 (TCO).
- 分析了1988-2024年的数据,特别关注2000年后的时期和南北极站.
主要成果:
- 在上层平流层臭氧 (5-1 hPa) 中观察到的统计学意义上的积极趋势高达0.915 ± 0.251%/十年.
- 在2000-2024年间检测到的全柱臭氧 (TCO) 显著的积极趋势 (综合卫星和地面数据).
- 在秋季和春季的南北极站也发现了积极的TCO趋势,尽管2020年枯竭事件的影响.
结论:
- 北极平流层在其上层和总列中呈现出恢复趋势.
- 在平流层下方的垂直臭氧配置中还没有明显的恢复签名.
- 持续监测是必要的,以确认长期复苏,并了解区域差异.
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