Validation of GPS Ionospheric Radio Occultation results onboard CHAMP by Vertical Sounding Observations in Europe
Ionospheric radio occultation (IRO) measurements have a big potential for monitoring the ionospheric behavior on global scale for now- and forecasting the ionospheric impact on radio systems. In this article we validate the retrieved vertical electron density profiles (EDPs) derived from IRO measurements onboard CHAMP by using vertical sounding measurements at five European vertical sounding stations — Athens, Dourbes, Juliusruh, Rome and Tortosa. Since first IRO measurement onboard CHAMP in April 2001, more than 70000 electron density profiles have been retrieved by a model assisted technique so far. The comparison of IRO retrieved EDPs with ionosonde profiles obtained from the above mentioned stations will be discussed.
Key wordsIonosphere radio occultation ionosonde electron density validation
Unable to display preview. Download preview PDF.
- Jakowski N, Wehrenpfennig A, Heise S, Reigber Ch, Lühr H, Grunwaldt L, Meehan T (2002) GPS Radio Occultation Measurements of the Ionosphere from CHAMP: Early Results. Geophys Res Lett 29: No. 10, 10.1029/2001GL014364.Google Scholar
- Reigber Ch, Lühr H, Schwintzer P (2000) CHAMP mission status and perspectives. Suppl to EOS, Transactions, AGU 81: 48, F307.Google Scholar
- Stolle C, Jakowski N, Schlegel K, Rietveld M (2003) Comparison of high latitude electron density profiles obtained with the GPS radio occultation technique and EISCAT measurements. Subm. to Ann Geophys.Google Scholar