RADAR BACKSCATTER FROM PLASMA IRREGULARITIES OF THE LOWER E-REGION INDUCED BY NEUTRAL TURBULENCE

Citation
K. Schlegel et Av. Gurevich, RADAR BACKSCATTER FROM PLASMA IRREGULARITIES OF THE LOWER E-REGION INDUCED BY NEUTRAL TURBULENCE, Annales geophysicae, 15(7), 1997, pp. 870-877
Citations number
31
Categorie Soggetti
Astronomy & Astrophysics","Geosciences, Interdisciplinary","Metereology & Atmospheric Sciences
Journal title
ISSN journal
09927689
Volume
15
Issue
7
Year of publication
1997
Pages
870 - 877
Database
ISI
SICI code
0992-7689(1997)15:7<870:RBFPIO>2.0.ZU;2-S
Abstract
Recently, one of the authors (A. V. G.) developed a theory of low-freq uency plasma irregularities which are created as a consequence of neut ral turbulence in the D and lower E regions. In the following this the ory 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 b e detected by very powerful radars with large antenna arrays.