Diagnostics of plasma in the ionospheric D-region: detection and study of different ionospheric disturbance types

  • Aleksandra Nina
  • Vladimir M. Čadež
  • Luka Č. Popović
  • Vladimir A. Srećković
Regular Article
Part of the following topical collections:
  1. Topical Issue: Physics of Ionized Gases (SPIG 2016)


Here we discuss our recent investigations of the ionospheric plasma by using very low and low frequency (VLF/LF) radio waves. We give a review of how to detect different low ionospheric reactions (sudden ionospheric disturbances) to various terrestrial and extra-terrestrial events, show their classification according to intensity and time duration, and present some methods for their detections in time and frequency domains. Investigations of detection in time domain are carried out for intensive long-lasting perturbations induced by solar X-ray flares and for short-lasting perturbations caused by gamma ray bursts. We also analyze time variations of signals used in the low ionospheric monitoring after earthquake events. In addition, we describe a procedure for the detection of acoustic and gravity waves from the VLF/LF signal analysis in frequency domain. The research of the low ionospheric plasma is based on data collected by the VLF/LF receivers located in Belgrade, Serbia.

Graphical abstract

Copyright information

© EDP Sciences, SIF, Springer-Verlag GmbH Germany 2017

Authors and Affiliations

  1. 1.Institute of Physics, University of BelgradeBelgradeSerbia
  2. 2.Astronomical ObservatoryBelgradeSerbia

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