On the Use of VLF Narrowband Measurements to Study the Lower Ionosphere and the Mesosphere–Lower Thermosphere

Israel Silber, Colin Price

Research output: Contribution to journalReview article

7 Citations (Scopus)

Abstract

The ionospheric D-region (~60 km up to ~95 km) and the corresponding neutral atmosphere, often referred to as the mesosphere–lower thermosphere (MLT), are challenging and costly to probe in situ. Therefore, remote sensing techniques have been developed over the years. One of these is based on very low frequency (VLF, 3–30 kHz) electromagnetic waves generated by various natural and man-made sources. VLF waves propagate within the Earth–ionosphere waveguide and are extremely sensitive to perturbations occurring in the D-region along their propagation path. Hence, measurements of these signals serve as an inexpensive remote sensing technique for probing the lower ionosphere and the MLT region. This paper reviews the use of VLF narrowband (NB) signals (generated by man-made transmitters) in the study of the D-region and the MLT for over 90 years. The fields of research span time scales from microseconds to decadal variability and incorporate lightning-induced short-term perturbations; extraterrestrial radiation bursts; energetic particle precipitation events; solar eclipses; lower atmospheric waves penetrating into the D-region; sudden stratospheric warming events; the annual oscillation; the solar cycle; and, finally, the potential use of VLF NB measurements as an anthropogenic climate change monitoring technique.

Original languageEnglish (US)
Pages (from-to)407-441
Number of pages35
JournalSurveys in Geophysics
Volume38
Issue number2
DOIs
StatePublished - Mar 1 2017

Fingerprint

D region
lower ionosphere
Ionosphere
thermosphere
narrowband
ionosphere
remote sensing
Remote sensing
stratospheric warming
neutral atmospheres
particle precipitation
solar eclipses
perturbation
extraterrestrial radiation
Upper atmosphere
very low frequencies
lightning
climate change
Lightning
energetic particles

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Geochemistry and Petrology

Cite this

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On the Use of VLF Narrowband Measurements to Study the Lower Ionosphere and the Mesosphere–Lower Thermosphere. / Silber, Israel; Price, Colin.

In: Surveys in Geophysics, Vol. 38, No. 2, 01.03.2017, p. 407-441.

Research output: Contribution to journalReview article

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AU - Price, Colin

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