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Ann. Geophys., 15, 870-877, 1997
https://doi.org/10.1007/s00585-997-0870-z
© European Geosciences Union 1997
 
31 Jul 1997
Radar backscatter from plasma irregularities of the lower E region induced by neutral turbulence
K. Schlegel and A. V. Gurevich1 Max-Planck-Institut für Aeronomie, 37189 Katlenburg, Lindau, Germany
1On leave from P.N. Levedev Institute of Physics, 117924 MOSCOW
Correspondence to: K. Schlegel
Abstract. Recently, one of the authors (A. V. G.) developed a theory of low-frequency plasma irregularities which are created as a consequence of neutral turbulence in the D and lower E regions. In the following this theory will be applied to coherent backscatter experiments with radars in a frequency range between 5 and 150 MHz. We discuss the dependence of the backscatter cross-section on ionospheric as well as on turbulence parameters. The backscatter increases strongly with decreasing radar frequency. Above 15 MHz the effects discussed here can probably only be detected by very powerful radars with large antenna arrays.

Citation: Schlegel, K. and Gurevich, A. V.: Radar backscatter from plasma irregularities of the lower E region induced by neutral turbulence, Ann. Geophys., 15, 870-877, https://doi.org/10.1007/s00585-997-0870-z, 1997.
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