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Radio Science

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June 2011

Volume 46, Issue 3

    1. You have full text access to this OnlineOpen article
      An MPI/GPU parallelization of an interior penalty discontinuous Galerkin time domain method for Maxwell's equations

      Stylianos Dosopoulos, Judith D. Gardiner and Jin-Fa Lee

      Article first published online: 25 OCT 2011 | DOI: 10.1029/2011RS004689

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      Key Points

      • MPI/GPU parallelization for time-domain Maxwell's equations
      • Parallelization of discontinous Galerkin time-domain methods
      • Combination of local time-stepping with MPI/GPU parallelization
    2. You have full text access to this OnlineOpen article
      Design and analysis of low frequency strut-straddling feed arrays for EVLA reflector antennas

      M. Harun and S. W. Ellingson

      Article first published online: 18 OCT 2011 | DOI: 10.1029/2011RS004710

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      Key Points

      • Low frequency strut-straddling feed arrays for EVLA reflector antennas
      • Radio astronomy
      • Reflector antenna feed for low frequency operation
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      Analysis of time-of-arrival observations performed during ELF/VLF wave generation experiments at HAARP

      S. Fujimaru and R. C. Moore

      Article first published online: 20 SEP 2011 | DOI: 10.1029/2011RS004695

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      Key Points

      • Time-of-arrival (TOA) analysis is applied to ELF/VLF observations
      • TOA yields ability to separate direct and ionospherically reflected components
      • TOA may provide ability to characterize the ELF/VLF source region currents
    4. You have full text access to this OnlineOpen article
      Performance evaluation of selected ionospheric delay models during geomagnetic storm conditions in low-latitude region

      D. Venkata Ratnam, A. D. Sarma, V. Satya Srinivas and P. Sreelatha

      Article first published online: 29 JUN 2011 | DOI: 10.1029/2010RS004592

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      Key Points

      • The present manuscript is mainly focused on ionospheric modeling for SBAS
      • Ionospheric models are investigated using 17 GPS TEC stations data
      • The models characterized the ionospheric disturbances due to magnetic storms
    5. You have full text access to this OnlineOpen article
      Bipolar climatology of GPS ionospheric scintillation at solar minimum

      Lucilla Alfonsi, Luca Spogli, Giorgiana De Franceschi, Vincenzo Romano, Marcio Aquino, Alan Dodson and Cathryn N. Mitchell

      Article first published online: 24 JUN 2011 | DOI: 10.1029/2010RS004571

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      Key Points

      • Ionospheric irregularities
      • Ionospheric scintillation climatology
      • High latitude ionosphere
    6. You have full text access to this OnlineOpen article
      Effects of diffraction by ionospheric electron density irregularities on the range error in GNSS dual-frequency positioning and phase decorrelation

      Vadim E. Gherm, Nikolay N. Zernov and Hal J. Strangeways

      Article first published online: 23 JUN 2011 | DOI: 10.1029/2010RS004624

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      Key Points

      • Errors in GPS positioning due to diffraction by ionospheric irregularities
      • Phase decorrelation between different GPS frequencies due to diffraction
      • Decrease in correlation for strong scintillation conditions
    7. You have full text access to this OnlineOpen article
      Imaging of 3-D plasmaspheric electron density using GPS to LEO satellite differential phase observations

      Paul S. J. Spencer and Cathryn N. Mitchell

      Article first published online: 2 JUN 2011 | DOI: 10.1029/2010RS004565

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      Key Points

      • The plasmaspheric electron density can be imaged
      • COSMIC GPS data are sufficient to display the plasmasphere
      • Euler potential are suitable constraints
    8. You have full text access to this OnlineOpen article
      Numerical modeling of ionospheric effects in the middle- and low-latitude F region during geomagnetic storm sequence of 9–14 September 2005

      M. V. Klimenko, V. V. Klimenko, K. G. Ratovsky, L. P. Goncharenko, Y. Sahai, P. R. Fagundes, R. de Jesus, A. J. de Abreu and A. M. Vesnin

      Article first published online: 27 MAY 2011 | DOI: 10.1029/2010RS004590

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      Key Points

      • Nonuniform in height zonal electric field forms the additional layers
      • Geomagnetic storms affect the additional layers in the equatorial ionosphere
      • GSM TIP model
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      The application of numerical simulations in Beacon scintillation analysis and modeling

      Charles L. Rino and Charles S. Carrano

      Article first published online: 27 MAY 2011 | DOI: 10.1029/2010RS004563

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      Key Points

      • High-fidelity numerical simulations
      • 3-D propagation through plume
      • Effects of nonuniform background
    10. You have full text access to this OnlineOpen article
      Comparison of FORMOSAT-3/COSMIC radio occultation measurements with radio tomography

      Smitha V. Thampi, Mamoru Yamamoto, Charles Lin and Huixin Liu

      Article first published online: 26 MAY 2011 | DOI: 10.1029/2010RS004431

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      Key Points

      • Comparison of RO with tomography
      • Tomographic and RO observations agree qualitatively well over midlatitdues
      • EIA crest densities are underestimated in the RO data
    11. You have full text access to this OnlineOpen article
      World coverage for single station lightning detection

      C. Mackay and A. C. Fraser-Smith

      Article first published online: 25 MAY 2011 | DOI: 10.1029/2010RS004600

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      Key Points

      • Analyzes limitations to single station lightning location
      • Displays world coverage of lightning detected by single station
      • Compares expected and measured lightning detected by a single station

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