Topside Plasma Scale Height Modelling Based on CHAMP Measurements: First Results

  • Stanimir M. Stankov
  • Norbert Jakowski

Summary

Presented are first results in retrieving, analysing, and modelling the topside plasma scale height by using CHAMP ionospheric radio occultation observations. The plasma scale height value in the region situated immediately above the ionospheric F2-layer density peak, is very important for the TEC calculation and plasma density reconstruction procedures based on GPS radio occultation measurements. Based on the year-long time series data accumulated so far, obtained were latitudinal, diumal, and seasonal variations of the topside plasma scale height. Considering the growing CHAMP measurement data base, it is possible to develop a new empirical model to be used for improving the process of electron density profile retrieval by delivering an improved initial guess of the topside electron density profile.

Key words

Scale Height Occultation Method Empirical Modelling 

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References

  1. Heise S, Jakowski N, Wehrenpfennig A, Reigber C, Lühr H (2002) Sounding of the topside ionosphere/plasmasphere based on GPS measurements from CHAMP: Initial results. Geophys Res Lett 29(14): doi 10.1029/2002GL014738.Google Scholar
  2. Jakowski N, Bettac HD, Lazo B, Lois L (1981) Seasonal variations of the columnar electron content of the ionosphere observed in Havana from July 1974 to April 1975. J Atmos Terr Phys 43(1): 7–11, doi 10.1016/0021-9169(81)90003-9.CrossRefGoogle Scholar
  3. Jakowski N, Wehrenpfennig A, Heise S, Reigber C, Lühr H, Grunwaldt L, Meehan T (2002) GPS radio occultation measurements of the ionosphere from CHAMP: Early results. Geophys Res Lett 29(10): doi 10.1029/2001GL014364.Google Scholar
  4. Reigber C, Lühr H, Schwintzer P (Eds.) (2002) First CHAMP Mission Results for Gravity, Magnetic and Atmospheric Studies. Springer-Verlag Berlin Heidelberg New York.Google Scholar
  5. Stankov SM, Jakowski N, Heise S, Muhtarov P, Kutiev I, Wamant R (2003) A new method for reconstruction of the vertical electron density distribution in the upper ionosphere and plasmasphere. J Geophys Res 108(A5): 1164, doi 10.1029/2002JA009570.CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Stanimir M. Stankov
    • 1
  • Norbert Jakowski
    • 1
  1. 1.Deutsches Zentrum für Luft- und Raumfahrt (DLR) - Institut für Kommunikation und Navigation (IKN)NeustrelitzDeutschland

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