Search results for: GEOMAGNETIC STORMS

• Geomagnetic Storms and Substorms as Space Weather I nfluence on Atmospheric Electric Field Variations

  Publication

  • N. Kleimenova
  • A. Odzimek
  • S. Michnowski
  • M. Kubicki
  • A. Odzimek

  - Year 2018

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• Relationship between GIX, SIDX, and ROTI ionospheric indices and GNSS precise positioning results under geomagnetic storms

  Publication

  • G. Nykiel
  • J. A. Cahuasquí
  • M. M. Hoque
  • N. Jakowski

  - GPS SOLUTIONS - Year 2024

  Ionospheric indices give information about ionospheric perturbations, which may cause absorption, diffraction, refraction, and scattering of radio signals, including those from global navigation satellite systems (GNSS). Therefore, there may be a relationship between index values and GNSS positioning results. A thorough understanding of ionospheric indices and their relationship to positioning results can help monitor and forecast...

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• A new index for statistical analyses and prediction of travelling ionospheric disturbances

  Publication

  • C. Borries
  • A. A. Ferreira
  • G. Nykiel
  • R. A. Borges

  - JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS - Year 2023

  Travelling Ionospheric Disturbances (TIDs) are signatures of atmospheric gravity waves (AGWs) observed in changes in the electron density. The analysis of TIDs is relevant for studying coupling processes in the thermosphere–ionosphere system. A new TID index is introduced, which is based on an easy extension of the commonly used approach for TID detection. This TID activity index, which can be applied for individual Global Navigation...

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