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Advances in Radio Science An open-access journal of the U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V.
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Volume 11
Adv. Radio Sci., 11, 333–339, 2013
https://doi.org/10.5194/ars-11-333-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.
Adv. Radio Sci., 11, 333–339, 2013
https://doi.org/10.5194/ars-11-333-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.

  04 Jul 2013

04 Jul 2013

Terdiurnal signatures in sporadic E layers at midlatitudes

T. Fytterer1, C. Arras2, and C. Jacobi1 T. Fytterer et al.
  • 1Institute for Meteorology, University of Leipzig, Stephanstr. 3, 04103 Leipzig, Germany
  • 2German Research Centre for Geosciences GFZ, Potsdam, Department Geodesy & Remote Sensing, Telegrafenberg, 14473 Potsdam, Germany

Abstract. Global Positioning System radio occultation measurements by the FORMOsa SATellite mission-3/Constellation Observing System for Meteorology, Ionosphere and Climate satellites were used to analyse the behaviour of the signature of the terdiurnal tide in sporadic E (ES) layers at midlatitudes (43–63° N). According to theory, the occurrence of ES is expected when the vertical zonal wind shear, which is mainly owing to solar tides, is negative. 4 yr means, based on 3-monthly running mean zonal means from December 2006–November 2010, were constructed for the terdiurnal oscillation in the occurrence frequency of ES. Comparison of the results with VHF meteor radar observations of the terdiurnal tide and the 8 h oscillation in the vertical zonal wind shear at Collm, Germany (51.3° N, 13° E) shows a clear correspondence between the 8 h in ES and in wind shear signature.

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