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Effects of solar proton events on dayglow observed by the TIMED/SABER satellite
Gao, Hong; Xu, Jiyao; Smith, Anne K.; Chen, Guang-Ming; Gao, H (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing, Peoples R China.
Department空间科学部
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
2017
Volume122Issue:7Pages:7619-7635
ISSN2169-9380
Language英语
AbstractThe effect of solar proton events on the daytime O-2 and OH airglows and ozone and atomic oxygen concentrations in the mesosphere is studied using data from the Sounding of the Atmosphere using Broadband Emission Radiometry (SABER). Five events occurred in September 2005, December 2006, March 2012, May 2013, and June 2015 that satisfy two criteria: the maximum proton fluxes are larger than 1000pfu, and daytime data in the high latitude region are available from SABER. The event in December 2006 is studied in detail, and the effects of all five events are compared in brief. The results indicate that all four parameters in the mesosphere decrease during the events. During the event in 2006, the maximum depletions of O-2 and OH dayglow emission rates and ozone and atomic oxygen volume mixing ratios at 70km are respectively 31.6%, 37.0%, 42.4%, and 38.9%. The effect of the solar proton event changes with latitude, longitude, and altitude. The depletions due to the stronger events are larger on average than those due to the weaker events. The depletions of both dayglow emission rates are weaker than those of ozone and atomic oxygen. The responses of O-2 and OH nightglow emissions around their peak altitudes to the SPEs are not as strong and regular as those for dayglow in the mesosphere. Plain Language Summary This paper uses Sounding of the Atmosphere using Broadband Emission Radiometry observations to study the responses of four parameters, O-2 airglow emission at 1.27 m and OH airglow emission at 1.6 m and ozone and atomic oxygen mixing ratios, to solar proton events. The focus is put on the daytime; meanwhile, the results for nighttime are compared with those for daytime in brief. The event in December 2006 is studied in detail as an example. The variations of the responses with latitude, longitude, and altitude are analyzed. Other events are also analyzed in brief. It is the first time that the responses of OH airglow and atomic oxygen to solar proton events are studied. The results indicate that both dayglow and daytime ozone and atomic oxygen in the mesosphere decrease in all solar proton events (SPEs). The SPE affects both O-2 and OH dayglow emissions in the mesosphere strongly, and therefore, they can be used as a tracer of the impacts of the SPE on the atmosphere. This study can make us understand the effects of solar proton event on O-2 and OH airglow emissions and ozone and atomic oxygen further.
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/5986
Collection空间科学部
Corresponding AuthorGao, H (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing, Peoples R China.
Recommended Citation
GB/T 7714
Gao, Hong,Xu, Jiyao,Smith, Anne K.,et al. Effects of solar proton events on dayglow observed by the TIMED/SABER satellite[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2017,122(7):7619-7635.
APA Gao, Hong,Xu, Jiyao,Smith, Anne K.,Chen, Guang-Ming,&Gao, H .(2017).Effects of solar proton events on dayglow observed by the TIMED/SABER satellite.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,122(7),7619-7635.
MLA Gao, Hong,et al."Effects of solar proton events on dayglow observed by the TIMED/SABER satellite".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 122.7(2017):7619-7635.
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