Articles | Volume 8
Adv. Radio Sci., 8, 225–230, 2010
https://doi.org/10.5194/ars-8-225-2010
Adv. Radio Sci., 8, 225–230, 2010
https://doi.org/10.5194/ars-8-225-2010

  01 Oct 2010

01 Oct 2010

Sporadic E signatures revealed from multi-satellite radio occultation measurements

C. Arras1, C. Jacobi2, J. Wickert1, S. Heise1, and T. Schmidt1 C. Arras et al.
  • 1Helmholtz Center Potsdam, German Research Center for Geosciences GFZ, Department 1.1: GPS/Galileo Earth Observation, Potsdam, Germany
  • 2University of Leipzig, Institute for Meteorology, Leipzig, Germany

Abstract. Radio occultation measurements performed by the satellites CHAMP, GRACE and FORMOSAT-3/COSMIC provide a huge data set for atmospheric and ionospheric investigations on a global scale. The data sets are used to extract information on sporadic E layers appearing in the lower ionospheric E region. This is done by analyzing signal amplitude variations of the GPS L1 signal. Sporadic E altitudes in northern midlatitudes found from radio occultation measurements are compared with ground-based ionosonde soundings. A large correlation of sporadic E altitudes from these two techniques is found.

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