globalchange  > 气候减缓与适应
DOI: 10.1002/grl.50920
论文题名:
Constructing the global distribution of chorus wave intensity using measurements of electrons by the POES satellites and waves by the Van Allen Probes
作者: Li W.; Ni B.; Thorne R.M.; Bortnik J.; Green J.C.; Kletzing C.A.; Kurth W.S.; Hospodarsky G.B.
刊名: Geophysical Research Letters
ISSN: 0094-8580
EISSN: 1944-8311
出版年: 2013
卷: 40, 期:17
起始页码: 4526
结束页码: 4532
语种: 英语
英文关键词: chorus distribution ; electron precipitation
Scopus关键词: chorus distribution ; Electron measurements ; Electron population ; Electron precipitation ; Magnetic local time ; Pitch-angle scattering ; Polar orbiting environmental satellites ; Radiation belt electrons ; Electrons ; Probes ; Radiation belts ; Satellites ; Electromagnetic waves ; electron ; POES ; satellite data ; satellite mission ; storm
英文摘要: We adopt a physics-based technique to infer chorus wave amplitudes from the low-altitude electron population (30-100 keV) measured by multiple Polar Orbiting Environmental Satellites (POES), which provide extensive coverage over a broad region in L-shell and magnetic local time (MLT). This technique is validated by analyzing conjunction events between the Van Allen Probes measuring chorus wave amplitudes near the equator and POES satellites measuring the 30-100 keV electron population at the conjugate low altitudes. We apply this technique to construct the chorus wave distributions during the 8-9 October storm in 2012 and demonstrate that the inferred chorus wave amplitudes agree reasonably well with conjugate measurements of chorus wave amplitudes from the Van Allen Probes. The evolution of the chorus wave intensity inferred from low-altitude electron measurements can provide real-time global estimates of the chorus wave intensity, which cannot be obtained from in situ chorus wave measurements by equatorial satellites alone, but is crucial in quantifying radiation belt electron dynamics. Key Points Chorus-driven pitch angle scattering causes electron precipitation Two directional electron measurement is used to infer chorus wave intensity Physics-based technique provides real-time estimates on chorus wave intensity ©2013. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84883698863&doi=10.1002%2fgrl.50920&partnerID=40&md5=1e87386bf0c9a10a7e7f533b19c6e943
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/5844
Appears in Collections:气候减缓与适应

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作者单位: Department of Atmospheric and Oceanic Sciences, UCLA, 7127 Math Sciences Bldg., 405 Hilgard Ave., Los Angeles, CA 90095, United States

Recommended Citation:
Li W.,Ni B.,Thorne R.M.,et al. Constructing the global distribution of chorus wave intensity using measurements of electrons by the POES satellites and waves by the Van Allen Probes[J]. Geophysical Research Letters,2013-01-01,40(17).
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