Near real-time estimation of ionosphere vertical total electron content from GNSS satellites using B-splines in a Kalman filter

Creative Commons License

Erdogan E., Schmidt M., Seitz F., Durmaz M.

ANNALES GEOPHYSICAE, vol.35, no.2, pp.263-277, 2017 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 35 Issue: 2
  • Publication Date: 2017
  • Doi Number: 10.5194/angeo-35-263-2017
  • Title of Journal : ANNALES GEOPHYSICAE
  • Page Numbers: pp.263-277
  • Keywords: Ionosphere (ionospheric disturbances; modeling and forecasting; instruments and techniques), GPS, ANOMALIES


Although the number of terrestrial global navigation satellite system (GNSS) receivers supported by the International GNSS Service (IGS) is rapidly growing, the worldwide rather inhomogeneously distributed observation sites do not allow the generation of high-resolution global ionosphere products. Conversely, with the regionally enormous increase in highly precise GNSS data, the demands on (near) real-time ionosphere products, necessary in many applications such as navigation, are growing very fast. Consequently, many analysis centers accepted the responsibility of generating such products. In this regard, the primary objective of our work is to develop a near real-time processing framework for the estimation of the vertical total electron content (VTEC) of the ionosphere using proper models that are capable of a global representation adapted to the real data distribution.