The Contribution of Geomagnetic Activity to Polar Ozone Changes in the Upper Atmosphere
The Contribution of Geomagnetic Activity to Polar Ozone Changes in the Upper Atmosphere
复制标题
地磁活动对高层大气极地臭氧变化的贡献
DOI：
10.1155/2017/1729454
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发表时间：
2017-06
影响因子：
2.9
通讯作者：
Lv Jingtian
中科院分区：
文献类型：
--
作者：
Huang Cong;Huang Fuxiang;Zhang Xiaoxin;Liu D;an;Lv Jingtian
高能粒子降水(EPP)对地磁活动期间极地中层大气中的臭氧消耗有重要影响。众所周知，太阳紫外线(UV)辐射在臭氧产生中起着重要作用。因此，比较EPP和太阳紫外线对极地高层大气臭氧变化的贡献是很有趣的。本文用年平均指数表示与EPP通量密切相关的地磁活动的年平均大小，用年平均指数表示太阳辐射的年平均大小，这与太阳紫外线有一定的关系。我们采用5°纬向年平均臭氧廓线数据集来研究臭氧数据集与各指数之间的统计特征。多元回归分析表明，地磁活动的贡献是不可忽略的，与极地高层大气(10 hpa以上)的太阳紫外线辐射具有相似的量级。结果还表明，高速太阳风流诱导的地磁活动与日冕物质抛射驱动的地磁活动具有相同的数量级。根据我们的多元回归分析，存在着半球间的差异。我们讨论了这些差异的可能原因。
Energetic particle precipitation (EPP) has significant impacts on ozone depletion in the polar middle atmosphere during geomagnetic activity. It is well known that solar ultraviolet (UV) radiation plays an important role in ozone generation. Therefore, it is interesting to compare the contributions of EPP and solar UV to ozone changes in the polar upper atmosphere. In this article, we use the annual average index to denote the annual-mean magnitude of the geomagnetic activity, which is closely correlated with the EPP flux, and the annual average index to denote the annual-mean magnitude of the solar radiation, which is somewhat related to the solar UV. We adopt the 5° zonal annual-mean ozone profile dataset to study the statistical characters between the ozone dataset and the , indices. Multiple regression analysis shows that the contributions of geomagnetic activity are not negligible and are of a similar order of magnitude as the solar UV radiation in the polar upper atmosphere (above 10 hPa). The results also show that high-speed solar-wind-stream-induced and coronal-mass-ejection-driven geomagnetic activity is of the same order of magnitude. There are interhemispheric differences according to our multiple regression analysis. We discuss the possible causes of these differences.
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影响因子：
5.2
作者：
J. Kuttippurath;G. Bodeker;H. Roscoe;P. J. Nair
通讯作者：
J. Kuttippurath;G. Bodeker;H. Roscoe;P. J. Nair
影响因子：
5.2
作者：
G. Reid;S. Solomon;R. Garcia
通讯作者：
G. Reid;S. Solomon;R. Garcia
影响因子：
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作者：
I. Richardson;E. Cliver;H. Cane
通讯作者：
I. Richardson;E. Cliver;H. Cane
影响因子：
3.1
作者：
L. H. Weeks;R. S. Cuikay;J. Corbin
通讯作者：
L. H. Weeks;R. S. Cuikay;J. Corbin
影响因子：
2.4
作者：
W. Swider;T. J. Keneshea
通讯作者：
W. Swider;T. J. Keneshea