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Investigation of the SigmaO/N-2 Depletion With Latitudinally Tilted Equatorward Boundary Observed by GOLD During the Geomagnetic Storm on April 20, 2020

文献类型：期刊论文

作者Yu, Tingting2,3,4; Cai, Xuguang1; Ren, Zhipeng2,3,4; Li, Shaoyang2,3,4; Pedatella, Nicholas5; He, Maosheng
刊名JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
出版日期2022-12-01
卷号127期号:12页码:12
ISSN号2169-9380
关键词Sigma O/N-2 GOLD TIEGCM neutral wind storm
DOI10.1029/2022JA030889
英文摘要A long-lived (>10 hr) O/N-2 column density ratio (Sigma O/N-2) depletion at middle latitudes was observed by the Global-scale Observations of the Limb and Disk (GOLD) during the 20 April 2020 geomagnetic storm. The observed Sigma O/N-2 depletion tilts latitudinally at equatorward boundary with the lowest latitude of similar to 20 degrees N at similar to 75 degrees W, and changes orientation near 75 degrees W, with a north-westward tilt to the west of similar to 75 degrees W and a north-eastward tilt to the east of similar to 75 degrees W. The National Center for Atmospheric Research Thermosphere Ionosphere Electrodynamics General Circulation Model shows the similar Sigma O/N-2 depletion patterns and magnitudes, but the longitudes with the most equatorward were similar to 100 degrees W and moved westward from similar to 100 degrees W to similar to 140 degrees W during the storm recovery period. Horizontal winds play major role in forming this middle-latitude Sigma O/N-2 depletion structure. The strongest equatorward winds in the longitude sector near the magnetic pole resulted in the most equatorward expansion of all longitudes, generating the depletion with latitudinally tilted equatorward boundary. In addition, the high-latitude westward zonal wind and the middle-latitude eastward zonal wind maintained the long existence of this depletion in the GOLD Field of View. The further analysis on neutral winds shows that storm-time meridional winds at middle latitudes in the mid-low thermosphere are mainly dominated by pressure gradient force, while zonal winds are determined primarily by horizontal momentum advection.
WOS关键词GENERAL-CIRCULATION MODEL ; GLOBAL-SCALE OBSERVATIONS ; UPPER-ATMOSPHERE ; AURORAL MODEL ; O/N-2 ; PERTURBATIONS ; MIDDLE
资助项目B-type Strategic Priority Program of the Chinese Academy of Sciences[XDB41000000] ; Strategic Priority Research Program of Chinese Academy of Sciences - CNSA[XDA17010201] ; Strategic Priority Research Program of Chinese Academy of Sciences - CNSA[XDA17010404] ; Strategic Priority Research Program of Chinese Academy of Sciences - CNSA[D020105] ; National Science Foundation of China[41874179] ; National Science Foundation of China[41674158] ; National Science Foundation of China[41427901] ; Open Research Project of Large Research Infrastructures-"Study on the interaction ; Chinese Meridian Project," Key Research Program of the Chinese Academy of Sciences[ZDRE-KT-2021-3] ; fellowship of China Postdoctoral Science Foundation[2021M703192] ; National Center for Atmospheric Research ; U.S. National Science Foundation[1852977]
WOS研究方向Astronomy & Astrophysics
语种英语
出版者AMER GEOPHYSICAL UNION
WOS记录号WOS:000924557600001
资助机构B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences - CNSA ; Strategic Priority Research Program of Chinese Academy of Sciences - CNSA ; National Science Foundation of China ; National Science Foundation of China ; Open Research Project of Large Research Infrastructures-"Study on the interaction ; Open Research Project of Large Research Infrastructures-"Study on the interaction ; Chinese Meridian Project," Key Research Program of the Chinese Academy of Sciences ; Chinese Meridian Project," Key Research Program of the Chinese Academy of Sciences ; fellowship of China Postdoctoral Science Foundation ; fellowship of China Postdoctoral Science Foundation ; National Center for Atmospheric Research ; National Center for Atmospheric Research ; U.S. National Science Foundation ; U.S. National Science Foundation ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences - CNSA ; Strategic Priority Research Program of Chinese Academy of Sciences - CNSA ; National Science Foundation of China ; National Science Foundation of China ; Open Research Project of Large Research Infrastructures-"Study on the interaction ; Open Research Project of Large Research Infrastructures-"Study on the interaction ; Chinese Meridian Project," Key Research Program of the Chinese Academy of Sciences ; Chinese Meridian Project," Key Research Program of the Chinese Academy of Sciences ; fellowship of China Postdoctoral Science Foundation ; fellowship of China Postdoctoral Science Foundation ; National Center for Atmospheric Research ; National Center for Atmospheric Research ; U.S. National Science Foundation ; U.S. National Science Foundation ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences - CNSA ; Strategic Priority Research Program of Chinese Academy of Sciences - CNSA ; National Science Foundation of China ; National Science Foundation of China ; Open Research Project of Large Research Infrastructures-"Study on the interaction ; Open Research Project of Large Research Infrastructures-"Study on the interaction ; Chinese Meridian Project," Key Research Program of the Chinese Academy of Sciences ; Chinese Meridian Project," Key Research Program of the Chinese Academy of Sciences ; fellowship of China Postdoctoral Science Foundation ; fellowship of China Postdoctoral Science Foundation ; National Center for Atmospheric Research ; National Center for Atmospheric Research ; U.S. National Science Foundation ; U.S. National Science Foundation ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences - CNSA ; Strategic Priority Research Program of Chinese Academy of Sciences - CNSA ; National Science Foundation of China ; National Science Foundation of China ; Open Research Project of Large Research Infrastructures-"Study on the interaction ; Open Research Project of Large Research Infrastructures-"Study on the interaction ; Chinese Meridian Project," Key Research Program of the Chinese Academy of Sciences ; Chinese Meridian Project," Key Research Program of the Chinese Academy of Sciences ; fellowship of China Postdoctoral Science Foundation ; fellowship of China Postdoctoral Science Foundation ; National Center for Atmospheric Research ; National Center for Atmospheric Research ; U.S. National Science Foundation ; U.S. National Science Foundation
源URL[http://ir.iggcas.ac.cn/handle/132A11/106795]  
专题地质与地球物理研究所_中国科学院地球与行星物理重点实验室
通讯作者Cai, Xuguang; Ren, Zhipeng
作者单位1.Univ Colorado, Lab Atmospher & Space Phys, Boulder, CO 80309 USA
2.Chinese Acad Sci, Key Lab Earth & Planetary Phys, Inst Geol & Geophy, Beijing, Peoples R China
3.Chinese Acad Sci, Beijing Natl Observ Space Environm, Inst Geol & Geophys, Beijing, Peoples R China
4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
5.Natl Ctr Atmospher Res, High Altitude Observ, Boulder, CO 80307 USA
推荐引用方式
GB/T 7714		 Yu, Tingting,Cai, Xuguang,Ren, Zhipeng,et al. Investigation of the SigmaO/N-2 Depletion With Latitudinally Tilted Equatorward Boundary Observed by GOLD During the Geomagnetic Storm on April 20, 2020[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2022,127(12):12.
APA Yu, Tingting,Cai, Xuguang,Ren, Zhipeng,Li, Shaoyang,Pedatella, Nicholas,&He, Maosheng.(2022).Investigation of the SigmaO/N-2 Depletion With Latitudinally Tilted Equatorward Boundary Observed by GOLD During the Geomagnetic Storm on April 20, 2020.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,127(12),12.
MLA Yu, Tingting,et al."Investigation of the SigmaO/N-2 Depletion With Latitudinally Tilted Equatorward Boundary Observed by GOLD During the Geomagnetic Storm on April 20, 2020".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 127.12(2022):12.

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来源：地质与地球物理研究所

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