globalchange  > 气候减缓与适应
DOI: 10.1002/2014GL060986
论文题名:
Ionospheric electron density profiles inverted from a spectral riometer measurement
作者: Kero A.; Vierinen J.; McKay-Bukowski D.; Enell C.-F.; Sinor M.; Roininen L.; Ogawa Y.
刊名: Geophysical Research Letters
ISSN: 0094-9875
EISSN: 1944-9606
出版年: 2014
卷: 41, 期:15
起始页码: 5370
结束页码: 5375
语种: 英语
英文关键词: D region ionosphere ; KAIRA ; spectral riometry
Scopus关键词: Absorption spectroscopy ; D region ; Electromagnetic wave absorption ; Ionospheric measurement ; Magnetosphere ; Meteorological instruments ; Radar measurement ; Radio astronomy ; Carrier concentration ; Electron density measurement ; Films ; Ionosphere ; Electron density profiles ; Electron precipitation ; Imaging receivers ; Ionospheric electron densities ; KAIRA ; Single frequency ; spectral riometry ; Time and frequencies ; Parameterized ; Received power ; Films ; Electrons ; absorption spectrum ; electron density ; estimation method ; ionization ; ionosphere ; precipitation (climatology) ; radar imagery ; radio wave ; Finland ; Kilpisjarvi ; Lappi [Finland]
英文摘要: The first implementation of the so-called spectral riometer technique for the ionospheric electron density profile estimation is presented. In contrast to the traditional riometer operating at a single frequency, this experiment monitors the cosmic radio noise at 244 frequencies, ranging between 10 and 80MHz, by using the new Kilpisja? rvi Atmospheric Imaging Receiver Array radio telescope. The received power at each time and frequency is compared to the corresponding quiet-day value, resulting in the cosmic radio noise absorption spectrum as a measurement of ionization in the ionosphere. In this study, the observed absorption spectrum is used to invert the corresponding electron density profile by applying a simple parameterized electron precipitation model. By comparing the inverted electron density profiles to a simultaneous and nearly colocated European Incoherent Scatter VHF radar measurement on 13-14 November 2012, we show that the spectral riometry approach is capable of producing realistic electron density profiles under conditions of substorm-related electron precipitation. Key Points Spectral riometer measurement is introduced and implemented for the first time A novel inversion of the ionospheric electron density profile is presented A good general agreement with the EISCAT reference data is found © 2014. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84905291904&doi=10.1002%2f2014GL060986&partnerID=40&md5=53ff22b6b62d2f98d3cbfe298f8ee90d
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7139
Appears in Collections:气候减缓与适应

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作者单位: SGO, University of Oulu, Tähteläntie, Finland

Recommended Citation:
Kero A.,Vierinen J.,McKay-Bukowski D.,et al. Ionospheric electron density profiles inverted from a spectral riometer measurement[J]. Geophysical Research Letters,2014-01-01,41(15).
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