| DOI: | 10.1002/2015GL064574
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| 论文题名: | AMISR-14: Observations of equatorial spread F |
| 作者: | Rodrigues F.S.; Nicolls M.J.; Milla M.A.; Smith J.M.; Varney R.H.; Strømme A.; Martinis C.; Arratia J.F.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9192
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| EISSN: | 1944-8923
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| 出版年: | 2015
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| 卷: | 42, 期:13 | | 起始页码: | 5100
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| 结束页码: | 5108
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| 语种: | 英语
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| 英文关键词: | ionosphere
; irregularities
; radar
; scatter
; spread F
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| Scopus关键词: | F region
; Ionosphere
; Ionospheric measurement
; Scattering
; Electronic beam steering
; Incoherent scatter radar
; Instability condition
; Irregularities
; Jicamarca Radio Observatory
; Scattering structures
; Simultaneous observation
; Spread F
; Radar
; atmospheric electricity
; backscatter
; F region
; frequency analysis
; image analysis
; radar
; scattering
; spatiotemporal analysis
; zonal flow
; Jicamarca
; Lima [Peru]
; Peru
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| 英文摘要: | A new, 14-panel Advanced Modular Incoherent Scatter Radar (AMISR-14) system was recently deployed at the Jicamarca Radio Observatory. We present results of the first coherent backscatter radar observations of equatorial spread F(ESF) irregularities made with the system. Colocation with the 50MHz Jicamarca Unattended Long-term studies of the Ionosphere and Atmosphere (JULIA) radar allowed unique simultaneous observations of meter and submeter irregularities. Observations from both systems produced similar Range-Time-Intensity maps during bottom-type and bottomside ESF events. We were also able to use the electronic beam steering capability of AMISR-14 to "image" scattering structures in the magnetic equatorial plane and track their appearance, evolution, and decay with a much larger field of view than previously possible at Jicamarca. The results suggest zonal variations in the instability conditions leading to irregularities and demonstrate the dynamic behavior of F region scattering structures as they evolve and drift across the radar beams. Key Points First AMISR-14 observations Detection of submeter ESF irregularities Temporal and spatial variability of ESF. © 2015. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84938215530&doi=10.1002%2f2015GL064574&partnerID=40&md5=5b2a89ce168827ee7e72b1624dc41a87
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/8808
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| Appears in Collections: | 科学计划与规划
气候变化与战略
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作者单位: | William B. Hanson Center for Space Sciences, University of Texas at Dallas, Richardson, TX, United States
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| Recommended Citation: | |
Rodrigues F.S.,Nicolls M.J.,Milla M.A.,et al. AMISR-14: Observations of equatorial spread F[J]. Geophysical Research Letters,2015-01-01,42(13).
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