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Dependence of Great Geomagnetic Storm (Delta SYM-H <=-200 nT) on Associated Solar Wind Parameters
Zhao, Ming-Xian1,2; Le, Gui-Ming1,2,3; Li, Qi4; Liu, Gui-Ang3; Mao, Tian1
2021-04-01
Source PublicationSOLAR PHYSICS
ISSN0038-0938
Volume296Issue:4Pages:14
AbstractWe use Delta SYM-H to capture the variation in the SYM-H index during the main phase of a geomagnetic storm. We define great geomagnetic storms as those with Delta SYM-H <= -200 nT. After analyzing the data that were not obscured by solar winds, we determined that 17 such storms occurred during Solar Cycles 23 and 24. We calculated time integrals for the southward interplanetary magnetic field component I (B-s), the solar wind electric field I (E-y), and a combination of E-y and the solar wind dynamic pressure I (Q) during the main phase of a great geomagnetic storm. The strength of the correlation coefficient (CC) between Delta SYM-H and each of the three integrals I (B-s) (CC = 0.73), I (E-y) (CC = 0.86), and I (Q) (CC = 0.94) suggests that Q, which encompasses both the solar wind electric field and the solar wind dynamic pressure is the main driving factor that determines the intensity of a great geomagnetic storm. The results also suggest that the impact of Bs on the great geomagnetic storm intensity is much more significant than that of the solar wind speed and the dynamic pressure during the main phase of an associated great geomagnetic storm. The better estimation of the intensity of an extreme geomagnetic storm intensity based on solar wind parameters is also discussed.
KeywordSolar wind Disturbances Magnetosphere Geomagnetic disturbances
Funding OrganizationCenter for Geomagnetism and Space Magnetism, Kyoto University ; Center for Geomagnetism and Space Magnetism, Kyoto University ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Center for Geomagnetism and Space Magnetism, Kyoto University ; Center for Geomagnetism and Space Magnetism, Kyoto University ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Center for Geomagnetism and Space Magnetism, Kyoto University ; Center for Geomagnetism and Space Magnetism, Kyoto University ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Center for Geomagnetism and Space Magnetism, Kyoto University ; Center for Geomagnetism and Space Magnetism, Kyoto University ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
DOI10.1007/s11207-021-01816-2
WOS KeywordMAGNETIC CLOUDS ; INTERPLANETARY ; PHASE
Language英语
Funding ProjectCenter for Geomagnetism and Space Magnetism, Kyoto University ; National Key R&D Program of China[2018YFC1503806] ; National Natural Science Foundation of China[41774085] ; National Natural Science Foundation of China[41074132] ; National Natural Science Foundation of China[41274193] ; National Natural Science Foundation of China[41474166] ; National Natural Science Foundation of China[41774195] ; National Natural Science Foundation of China[41874187]
Funding OrganizationCenter for Geomagnetism and Space Magnetism, Kyoto University ; Center for Geomagnetism and Space Magnetism, Kyoto University ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Center for Geomagnetism and Space Magnetism, Kyoto University ; Center for Geomagnetism and Space Magnetism, Kyoto University ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Center for Geomagnetism and Space Magnetism, Kyoto University ; Center for Geomagnetism and Space Magnetism, Kyoto University ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Center for Geomagnetism and Space Magnetism, Kyoto University ; Center for Geomagnetism and Space Magnetism, Kyoto University ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000641463300001
PublisherSPRINGER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/78063
Collection中国科学院国家天文台
Corresponding AuthorLe, Gui-Ming
Affiliation1.China Meteorol Adm, Natl Ctr Space Weather, Key Lab Space Weather, Beijing 100081, Peoples R China
2.Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China
3.Lingnan Normal Univ, Sch Phys Sci & Technol, Zhanjiang 524048, Peoples R China
4.China Earthquake Adm, Inst Geophys, Beijing 100081, Peoples R China
Recommended Citation
GB/T 7714
Zhao, Ming-Xian,Le, Gui-Ming,Li, Qi,et al. Dependence of Great Geomagnetic Storm (Delta SYM-H <=-200 nT) on Associated Solar Wind Parameters[J]. SOLAR PHYSICS,2021,296(4):14.
APA Zhao, Ming-Xian,Le, Gui-Ming,Li, Qi,Liu, Gui-Ang,&Mao, Tian.(2021).Dependence of Great Geomagnetic Storm (Delta SYM-H <=-200 nT) on Associated Solar Wind Parameters.SOLAR PHYSICS,296(4),14.
MLA Zhao, Ming-Xian,et al."Dependence of Great Geomagnetic Storm (Delta SYM-H <=-200 nT) on Associated Solar Wind Parameters".SOLAR PHYSICS 296.4(2021):14.
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