International Workshop on GNSS Ionosphere (IWGI2018)
- Observations, Advances and Opportunities
November 4-6, 2018, Shanghai, China

Background & Objectives
    Ionospheric delay is one of main GNSS errors, which is still challenging to precisely correct and model the ionospheric error in positioning, navigation and timing (PNT). Nowadays, dual-frequency GNSS observations can precisely estimate ionoispheric delay, total electron content (TEC), electron density etc, which provide a unique opportunity to correct, monitor and understand ionospheric variations, particularly multi-GNSS, including US's GPS, Russia's GLONASS, China's BeiDou and EU's Galileo as well as regional systems, such as Japan's QZSS and India's IRNSS.

    The International Workshop on GNSS Ionosphere (IWGI2018) - Observations, Advances and Opportunities is jointly sponsored by the International Association of Geodesy (IAG), German Aerospace Center (DLR) and Shanghai Astronomical Observatory, CAS, China (SHAO). The IWGI2018 will be held on November 4-6, 2018, Shanghai, China. The IWGI2018 aims to provide a platform for GNSS scientists and engineers to communicate and exchange in GNSS ionosphere theory, methods, technologies, applications and future challenges. The IWGI2018 is open to all scientists who may have the latest results and developments in GNSS ionosphere, including ionospheric delay estimating theory, algorithms, modelling and applications in engineering and Earth/space science as well as combining multi-sensors. Manuscripts on new advances in GNSS ionosphere and space weather are also welcome.

Sessions & Topics

  • Session 1: Multi-GNSS Current Status and Advances
  • Session 2: GNSS Tropospheric Delay Estimation and Effects
  • Session 3: GNSS Ionospheric Delay Estimation and Modelling
  • Session 4: GNSS Ionospheric Tomography and Radio Occultation
  • Session 5: Ionospheric Delay Effects on Navigation and Positioning
  • Session 6: Ionospheric/Thermospheric Irregularities from GNSS
  • Session 7: GNSS Space Weather and Environment Variations
  • Session 8: Seismic-Ionospheric Disturbances and Warning
  • Session 9: Ionosphere and Space Environments from Multi-Sensors


  • International Association of Geodesy (IAG)
  • German Aerospace Center (DLR)
  • Shanghai Astronomical Observatory (SHAO), China
  • Nanjing University of Information Science & Technology (NUIST)

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