DOI: 10.1002/grl.50980
论文题名: Ionospheric effects of sudden stratospheric warming during moderate-to-high solar activity: Case study of January 2013
作者: Goncharenko L. ; Chau J.L. ; Condor P. ; Coster A. ; Benkevitch L.
刊名: Geophysical Research Letters
ISSN: 0094-8479
EISSN: 1944-8210
出版年: 2013
卷: 40, 期: 19 起始页码: 4982
结束页码: 4986
语种: 英语
英文关键词: ionosphere/atmosphere interactions
; sudden stratospheric warming
Scopus关键词: Equatorial ionization anomaly
; Hemi-spheric asymmetries
; Ionospheric anomalies
; Ionospheric disturbance
; Stratospheric warmings
; Strong perturbations
; Sudden stratospheric warming
; Total electron content
; Computer simulation
; Numerical models
; Solar energy
; Solar radiation
; electron
; geomagnetic field
; ionization
; ionosphere
; numerical model
; solar activity
; stratosphere
; tidal cycle
; Jicamarca
; Lima [Peru]
; Peru
英文摘要: A major sudden stratospheric warming (SSW) occurred in January 2013 during moderate-to-high solar activity conditions. Observations during the winter of 2012/2013 reveal strong ionospheric disturbances associated with this event. Anomalous variations in vertical ion drift measured at the geomagnetic equator at Jicamarca (12°S, 77°W) are observed for over 40 days. We report strong perturbations in the total electron content (TEC) that maximize in the crests of equatorial ionization anomaly, reach 100% of the background value, exhibit significant longitudinal and hemispheric asymmetry, and last for over 40 days. The magnitude of ionospheric anomalies in both vertical drifts and TEC is comparable to the anomalies observed during the record-strong SSW of January 2009 that coincided with the extreme solar minimum. This observation contrasts with results of numerical simulations that predict weaker ionospheric response to the tidal forcing during high solar activity. Key Points Ionospheric anomalies due to stratospheric warming of 2013 are long, > 40 days Ionospheric anomalies due to SSW are strong, up to 80-100% of the background This contrasts with numerical simulations ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84885005232&doi=10.1002%2fgrl.50980&partnerID=40&md5=0ff386cd18167b3520985d596eec5d67
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/5743
Appears in Collections: 气候减缓与适应
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作者单位: Atmospheric Sciences Group, Haystack Observatory, MIT, Westford, MA 01886, United States
Recommended Citation:
Goncharenko L.,Chau J.L.,Condor P.,et al. Ionospheric effects of sudden stratospheric warming during moderate-to-high solar activity: Case study of January 2013[J]. Geophysical Research Letters,2013-01-01,40(19).