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Averaged NmF2 of cusp-latitude ionosphere in northern hemisphere for solar minimum — Comparison between modeling and ESR during IPY

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Abstract

Based on the ionosphere observation data obtained by EISCAT Svalbard Radar (ESR) in solar minimum year — 2007, we analyzed diurnal variations of F2-peak electron density (NmF2) in four seasons under disturbed and quiet geomagnetic conditions. It indicated that the soft precipitation electron had an evident effect on the NmF2 increase at magnetic noon in spring, summer and autumn and the electron precipitation effects were prominent in winter. The comparison between the IRI-2007 model and the observation exhibited that the IRI (International Reference Ionosphere) model had a better NmF2 prediction when the photoionization was dominant during the polar day, but worse when the electron precipitation was dominant during the polar night. We showed that the electrons in lower energy band decreased when the geomagnetic disturbance went greater, which resulted in the lower NmF2. By analyzing the spectrum of precipitation electron under different geomagnetic conditions, it was found that this phenomenon was induced by the energy flux enhancement of precipitation electron of low energy.

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References

  1. Bilitza D. International Reference Ionosphere 2000. Radio Sci, 2001, 36: 261–275

    Article  Google Scholar 

  2. Bilitza D, Reinisch B W. International Reference Ionosphere 2007: Improvements and new parameters. Adv Space Res, 2008, 42: 599–609

    Article  Google Scholar 

  3. Liu H, Claudia S, Shigeto W, et al. Evaluation of the IRI model using CHAMP observations in polar and equatorial regions. Adv Space Res, 2007, 39: 904–909

    Article  Google Scholar 

  4. Reigber C, Lühr H, Schwintzer H. CHAMP mission status. Adv Space Res, 2002, 30: 129–134

    Article  Google Scholar 

  5. Moen J, Qiu X C, Carlson H C, et al. On the diurnal variability in F2-region plasma density above the EISCAT Svalbard radar. Ann Geophys, 2008, 26: 2427–2433

    Article  Google Scholar 

  6. Zhang S R, Holt J, Bilitza D, et al. Multiple-site comparisons between models of incoherent scatter radar and IRI. Adv Space Res, 2007, 39: 910–917

    Article  Google Scholar 

  7. Lei J H, Liu L B, Wan W X, et al. Comparison of the first long-duration IS experiment measurements over Millstone Hill and EISCAT Svalbard radar with IRI2001. Adv Space Res, 2006, 37: 1102–1107

    Article  Google Scholar 

  8. Cai H T, Ma S Y, Schlegel K. Climatologic characteristics of high-latitude ionosphere-EISCAT observations and comparison with the IRI model (in Chinese). Chin J Geophys, 2005, 48: 471–479

    Google Scholar 

  9. Liu Y C, Ma S Y, Cai H T. The background ionospheric profiles at polar cusp latitudes — ESR observations (in Chinese). Chin J Polar Res, 2005, 17: 193–202

    Google Scholar 

  10. Liou K, Newell P T, Meng C I, et al. Synoptic auroral distribution: A survey using Polar ultraviolet imagery. J Geophys Res, 1997, 102: 27197–27206

    Article  Google Scholar 

  11. Perevalova N P, Polyakova A S, Zalizovski A V. Diurnal variations of the total electron content under quiet helio-geomagnetic conditions. J Atoms Solar-Terr Phys, 2010, 72: 997–1007

    Article  Google Scholar 

  12. Kohl H, King J W. Atmospheric winds between 100 and 700 km and their effects on the ionosphere. J Atmos Terr Phys, 1967, 29: 1045–1062

    Article  Google Scholar 

  13. Spiro R W, Reiff P H, Maher L J Jr. Precipitating electron energy flux and auroral zone conductances: An empirical model. J Geophys Res, 1982, 87: 8215–8227

    Article  Google Scholar 

  14. Hardy D A, Gussenhoven M S, Holeman E. A statistical model of the auroral electron precipitation. J Geophys Res, 1985, 90: 4229–4248

    Article  Google Scholar 

  15. Meier R R, Strickland D J, Hecht J H, et al. Deducing composition and incident electron spectra from ground-based auroral optical measurements: A study of auroral red line processes. J Geophys Res, 1989, 94: 13541–13552

    Article  Google Scholar 

  16. Liu J M, Zhang B C, Liu R Y, et al. Effects of the precipitation electrons on the polar ionosphere with different energy spectrum (in Chinese). Chin J Geophys, 2009, 52: 1429–1437

    Google Scholar 

  17. Rees M H. Auroral ionization and excitation by incident energetic electrons. Planet Space Sci, 1963, 11: 1209–1218

    Article  Google Scholar 

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Authors and Affiliations

  1. SOA Key Laboratory for Polar Science, Polar Research Institute of China, Shanghai, 200136, China

    Fang He, BeiChen Zhang & DeHong Huang

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  1. Fang He
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  2. BeiChen Zhang
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  3. DeHong Huang
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Correspondence to Fang He.

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He, F., Zhang, B. & Huang, D. Averaged NmF2 of cusp-latitude ionosphere in northern hemisphere for solar minimum — Comparison between modeling and ESR during IPY. Sci. China Technol. Sci. 55, 1281–1286 (2012). https://doi.org/10.1007/s11431-012-4782-0

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  • DOI: https://doi.org/10.1007/s11431-012-4782-0

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