 |
Detailed Reference Information |
Titova, E.E., Di, V.I., Yurov, V.E., Raspopov, O.M., Trakhtengertz, V.Y., Jiricek, F. and Triska, P. (1984). Interaction between VLF waves and the turbulent ionsophere. Geophysical Research Letters 11: doi: 10.1029/GL011i004p00323. issn: 0094-8276. |
|
The effects of broadening of frequency spectra of quasi-monochromatic very low frequency (VLF) signals were observed in the polar ionosphere when VLF transmitted signals were registered on the satellite ''Intercosmos-19''. Broadening of the spectrum was mainly registered on the electric antenna to the extent of Δf≤1 kHz. Broadening of the VLF signal and intensive extra low frequency (ELF) noise with f<1 kHz were observed simultaneously. Such effects can be explained by a transformation of the initial whistler-wave, into whistler-mode waves with wave-normals very ner the resonant cone, by small-scale ionospheric irregularities. These irregularities can be caused by ion-acoustic or ion-cyclotron waves. The effect of the broadening of the VLF signal spectrum can be used as a diagnostic of ionospheric turbulence and field-aligned electric currents in the upper ionosphere. |
|
 |
 |
BACKGROUND DATA FILES |
|
 |
Abstract |
|
 |
|
|
|
Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
|
|
 |