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Positive ionospheric storm effects at Latin America longitude during the superstorm of 20-22 November 2003: revisit
Zhao, B.; Wan, W.; Lei, J.; Wei, Y.; Sahai, Y.; Reinisch, B.; Zhao, B (reprint author), Chinese Acad Sci, Inst Geol & Geophys, Beijing Natl Observ Space Environm, Beijing, Peoples R China.
Department空间科学部
Source PublicationANNALES GEOPHYSICAE
2012
Volume30Issue:5Pages:831-840
ISSN0992-7689
Language英语
KeywordIonosphere Ionospheric Disturbances
AbstractPositive ionospheric storm effects that occurred during the superstorm on 20 November 2003 are investigated using a combination of ground-based Global Positioning System (GPS) total electron content (TEC), and the meridian chain of ionosondes distributed along the Latin America longitude of similar to 280A degrees E. Both the ground-based GPS TEC and ionosonde electron density profile data reveal significant enhancements at mid-low latitudes over the 280A degrees E region during the main phase of the November 2003 superstorm. The maximum enhancement of the topside ionospheric electron content is 3.2-7.7 times of the bottomside ionosphere at the locations of the ionosondes distributed around the mid- and low latitudes. Moreover, the height of maximum electron density exceeds 400 km and increases by 100 km compared with the quiet day over the South American area from middle to low latitudes, which might have resulted from a continuous eastward penetration electric field and storm-generated equatorward winds. Our results do not support the conclusions of Yizengaw et al. (2006), who suggested that the observed positive storm over the South American sector was mainly the consequence of the changes of the bottomside ionosphere. The so-called 'unusual' responses of the topside ionosphere for the November 2003 storm in Yizengaw et al. (2006) are likely associated with the erroneous usage of magnetometer and incomplete data.; Positive ionospheric storm effects that occurred during the superstorm on 20 November 2003 are investigated using a combination of ground-based Global Positioning System (GPS) total electron content (TEC), and the meridian chain of ionosondes distributed along the Latin America longitude of similar to 280A degrees E. Both the ground-based GPS TEC and ionosonde electron density profile data reveal significant enhancements at mid-low latitudes over the 280A degrees E region during the main phase of the November 2003 superstorm. The maximum enhancement of the topside ionospheric electron content is 3.2-7.7 times of the bottomside ionosphere at the locations of the ionosondes distributed around the mid- and low latitudes. Moreover, the height of maximum electron density exceeds 400 km and increases by 100 km compared with the quiet day over the South American area from middle to low latitudes, which might have resulted from a continuous eastward penetration electric field and storm-generated equatorward winds. Our results do not support the conclusions of Yizengaw et al. (2006), who suggested that the observed positive storm over the South American sector was mainly the consequence of the changes of the bottomside ionosphere. The so-called 'unusual' responses of the topside ionosphere for the November 2003 storm in Yizengaw et al. (2006) are likely associated with the erroneous usage of magnetometer and incomplete data.
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/122/3086
Collection空间科学部
Corresponding AuthorZhao, B (reprint author), Chinese Acad Sci, Inst Geol & Geophys, Beijing Natl Observ Space Environm, Beijing, Peoples R China.
Recommended Citation
GB/T 7714
Zhao, B.,Wan, W.,Lei, J.,et al. Positive ionospheric storm effects at Latin America longitude during the superstorm of 20-22 November 2003: revisit[J]. ANNALES GEOPHYSICAE,2012,30(5):831-840.
APA Zhao, B..,Wan, W..,Lei, J..,Wei, Y..,Sahai, Y..,...&Zhao, B .(2012).Positive ionospheric storm effects at Latin America longitude during the superstorm of 20-22 November 2003: revisit.ANNALES GEOPHYSICAE,30(5),831-840.
MLA Zhao, B.,et al."Positive ionospheric storm effects at Latin America longitude during the superstorm of 20-22 November 2003: revisit".ANNALES GEOPHYSICAE 30.5(2012):831-840.
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