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Temporal evolution of nightglow emission responses to SSW events observed by TIMED/SABER
Gao, Hong; Xu, Jiyao; Ward, William; Smith, Anne K.; Gao, H (reprint author), Chinese Acad Sci, Ctr Space Sci & Appl Res, State Key Lab Space Weather, Beijing 100190, Peoples R China.
Department空间科学部
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
2011
Volume116Pages:D19110
ISSN2169-897X
Language英语
AbstractUsing the SSW (Stratospheric Sudden Warming) event in 2009 as a representative case, the temporal evolution of the responses of OH and O-2 infrared atmospheric (0-0) nightglow emissions to SSW events is analyzed using the TIMED (Thermosphere Ionosphere Mesosphere Energetics and Dynamics)/SABER (Sounding of the Atmosphere using Broadband Emission Radiometry) data. The results show that during the mesospheric cooling that occurs during the stratospheric warming stage of SSW events, the brightness of OH and O-2 nightglow emissions and the thicknesses of OH and O-2 emission layers decrease noticeably and the peak heights of the emissions ascend. During the recovery stage in the mesosphere, the brightness of both nightglow emissions and the thicknesses of the emission layers increase dramatically and the peak heights of the emissions descend. These emission variations are mainly caused by perturbations in temperature and the transport of O in the MLT (Mesosphere Lower Thermosphere) region. For the SSW event that started in January 2009, the onset times of the cooling stage and recovery stage in the mesosphere are similar to 2 days ahead of the onset times of the warming stage and recovery stage of the SSW event, respectively. For this event, the influence of the SSW on the OH and O-2 nightglow emissions increases with latitude between 50 degrees N and 80 degrees N.; Using the SSW (Stratospheric Sudden Warming) event in 2009 as a representative case, the temporal evolution of the responses of OH and O-2 infrared atmospheric (0-0) nightglow emissions to SSW events is analyzed using the TIMED (Thermosphere Ionosphere Mesosphere Energetics and Dynamics)/SABER (Sounding of the Atmosphere using Broadband Emission Radiometry) data. The results show that during the mesospheric cooling that occurs during the stratospheric warming stage of SSW events, the brightness of OH and O-2 nightglow emissions and the thicknesses of OH and O-2 emission layers decrease noticeably and the peak heights of the emissions ascend. During the recovery stage in the mesosphere, the brightness of both nightglow emissions and the thicknesses of the emission layers increase dramatically and the peak heights of the emissions descend. These emission variations are mainly caused by perturbations in temperature and the transport of O in the MLT (Mesosphere Lower Thermosphere) region. For the SSW event that started in January 2009, the onset times of the cooling stage and recovery stage in the mesosphere are similar to 2 days ahead of the onset times of the warming stage and recovery stage of the SSW event, respectively. For this event, the influence of the SSW on the OH and O-2 nightglow emissions increases with latitude between 50 degrees N and 80 degrees N.
Indexed BySCI ; EI
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/3280
Collection空间科学部
Corresponding AuthorGao, H (reprint author), Chinese Acad Sci, Ctr Space Sci & Appl Res, State Key Lab Space Weather, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Gao, Hong,Xu, Jiyao,Ward, William,et al. Temporal evolution of nightglow emission responses to SSW events observed by TIMED/SABER[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2011,116:D19110.
APA Gao, Hong,Xu, Jiyao,Ward, William,Smith, Anne K.,&Gao, H .(2011).Temporal evolution of nightglow emission responses to SSW events observed by TIMED/SABER.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,116,D19110.
MLA Gao, Hong,et al."Temporal evolution of nightglow emission responses to SSW events observed by TIMED/SABER".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 116(2011):D19110.
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