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Radio Science

Cover image for Vol. 48 Issue 6

November/December 2013

Volume 48, Issue 6

Pages 659–751

  1. Regular Articles

    1. Top of page
    2. Regular Articles
    1. You have free access to this content
      Methodology of automated ionosphere front velocity estimation for ground-based augmentation of GNSS (pages 659–670)

      Eugene Bang and Jiyun Lee

      Article first published online: 18 NOV 2013 | DOI: 10.1002/rds.20066

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      Key Points

      • Ionospheric anomaly threat models need to be developed
      • The speed of ionosphere wave front is an important parameter
      • A methodology for automated ionosphere front velocity estimation is presented
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      Local ionosphere model estimation from dual-frequency global navigation satellite system observables (pages 671–684)

      R. H. Mitch, M. L. Psiaki and D. M. Tong

      Article first published online: 18 NOV 2013 | DOI: 10.1002/2013RS005153

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      Key Points

      • Local ionospheric TEC estimation
      • Local thin-shell and thick-shell ionosphere models
      • Unobservable local ionosphere Chapman profile
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      Investigation of ionospheric stimulated Brillouin scatter generated at pump frequencies near electron gyroharmonics (pages 685–697)

      A. Mahmoudian, W. A. Scales, P. A. Bernhardt, H. Fu, S. J. Briczinski and M. J. McCarrick

      Article first published online: 25 NOV 2013 | DOI: 10.1002/2013RS005189

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      Key Points

      • excitation threshold of MSBS lines originated at UH and reflection altitudes
      • Simultaneous observation of formation of FAIs and suppression of MSBS process
      • variation of MSBS emission lines with pump frequency and heater beam angle
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      Characterization of high-latitude ionospheric scintillation of GPS signals (pages 698–708)

      Yu Jiao, Yu T. Morton, Steven Taylor and Wouter Pelgrum

      Article first published online: 6 DEC 2013 | DOI: 10.1002/2013RS005259

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      Key Points

      • High-latitude scintillation is dominated by phase scintillation
      • Scintillation is primarily affected by solar activity and modulated by seasons
      • Scintillation is strongly correlated with local geomagnetic field activity
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      Elevation angle-of-arrival determination for a standard and a modified superDARN HF radar layout (pages 709–721)

      Andrew J. McDonald, James Whittington, Sebastien de Larquier, Edhem Custovic, Thomas A. Kane and John C. Devlin

      Article first published online: 12 DEC 2013 | DOI: 10.1002/2013RS005157

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      Key Points

      • An angle-of-arrival aliasing effect occurs routinely in SuperDARN radar data
      • Incorrect (aliased) elevation angle data can often contaminate non-aliased data
      • A layout with dual-auxiliary array interferometers removes the aliasing effect
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      New antenna layout for a SuperDARN HF radar (pages 722–728)

      Edhem Custovic, Andrew J. McDonald, James Whittington, Darrell Elton, Thomas A. Kane and John C. Devlin

      Article first published online: 12 DEC 2013 | DOI: 10.1002/2013RS005156

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      Key Points

      • A new SuperDARN radar layout has been developed with dual auxiliary arrays
      • Phase-calibration and RF interaction between auxiliary arrays is discussed
      • The new layout removes the two-pi ambiguity or aliasing effect
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      Tropospheric delay statistics measured by two site test interferometers at Goldstone, California (pages 729–738)

      David D. Morabito, Larry R. D'Addario, Roberto J. Acosta and James A. Nessel

      Article first published online: 13 DEC 2013 | DOI: 10.1002/2013RS005268

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      Key Points

      • Two interferometers were deployed at Goldstone, California, to assess turbulence
      • The delay fluctuations from each instrument are statistically similar
      • The atmospheric fluctuations are slightly weaker at the higher altitude site
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      An automatic scaling technique for obtaining F2 parameters and F1 critical frequency from vertical incidence ionograms (pages 739–751)

      Chunhua Jiang, Guobin Yang, Zhengyu Zhao, Yuannong Zhang, Peng Zhu and Hengqing Sun

      Article first published online: 13 DEC 2013 | DOI: 10.1002/2013RS005223

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      Key Points

      • It presents an aotumatic scaling technique for F2 and F1 layer
      • The algorithm can distinguish the ordinary and extraordinary trace of F2 layer
      • With an ionosperic model, it would improve the performance of the technique

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