平流层低层臭氧造成的北大西洋气压和温度的多年变率

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
N. Kilifarska, T. Velichkova, Antonia Mokreva
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引用次数: 0

摘要

对1900-2019年期间北半球海平面压力、空气表面温度和平流层低层臭氧的分析显示,它们的时间变率存在一致性。相干性在全球分布不均,臭氧对压力和温度的影响模式也各不相同。更具体地说,臭氧对海平面压力的最大影响出现在主要的"活动中心",即阿留申低气压区和NAO形成区。臭氧的影响主要局限于40-75 0N纬向带,在20世纪的大部分时间(与21世纪头十年相比),70 hPa的臭氧混合比减少了。臭氧空间分布的这种特殊性,我们归因于高能粒子被困在地球的辐射带中,激活它们自己的离子-分子反应,在再生-光子电离最大的区域产生臭氧。因此,低层大气电离的时空变化可以很好地解释臭氧的不规则分布及其对气候变量的区域特定影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Multiannual variability of the North Atlantic pressure and temperature, imposed by the lower stratospheric ozone
Analyses of the Northern Hemisphere’s sea level pressure, air surface temperature and lower stratospheric ozone, during the period 1900-2019, reveal an existing coherence in their temporal variability. The coherence is heterogeneously distributed over the globe, and the patterns of ozone impact on the pressure and temperature are different. More specifically, the strongest ozone influence on the sea level pressure is found in the main “centres of action” – i.e. the Aleutian low and the region of NAO formation. The ozone influence is localised mainly in the latitudinal belt 40-75 0N, where the ozone mixing ratio at 70 hPa is reduced during the most of the 20-th century (compared to the first decade of the 21-st century). This peculiarity of ozone spatial distribution we attribute to the energetic particles trapped in the Earth’s radiation belts, activating themselves ion-molecular reactions of ozone production in the region of Regener-Pfotzer ionisation maximum. Consequently, the spatial-temporal variations of the lower atmospheric ionisation could be a good explanation for irregularly distributed ozone and its regionally specified impact on the climatic variables.
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来源期刊
Accounts of Chemical Research
Accounts of Chemical Research 化学-化学综合
CiteScore
31.40
自引率
1.10%
发文量
312
审稿时长
2 months
期刊介绍: Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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