Links between mesopause temperatures and ground-based VLF narrowband radio signals

Israel Silber, Colin Price, Craig J. Rodger, Christos Haldoupis

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The Upper Mesosphere-Lower Thermosphere (UMLT) region of the atmosphere is known to vary on many temporal and spatial scales. However, this region of the atmosphere is very difficult to measure and monitor continuously. In this paper, we demonstrate an intriguing connection between mesopause temperatures and the intensity of very low frequencies (VLF) narrowband (NB) signals reflected off the lower ionosphere. The temperature data used are from the SABER instrument onboard the TIMED satellite, while the VLF data are obtained from various ground-based receiving systems. The results of the analysis show a high anticorrelation between temperature and VLF amplitude. It is shown that the variability of the UMLT temperatures and VLF amplitudes can be explained by global seasonal solar irradiance changes (~72% of the variability), while the remaining variability has its origins from other sources (~28%). High-resolution mesopause temperature estimates might be achieved in the future by combining VLF NB observations and calculated solar irradiance variability (as a function of hour, day, and location, i.e., latitude). Key Points First observations of link between mesopause temperatures and VLF amplitudesIncreasing mesopause temperatures linked to decreasing VLF amplitudesNew method to estimate mesopause temperature using VLF measurements

Original languageEnglish (US)
Pages (from-to)4244-4255
Number of pages12
JournalJournal of Geophysical Research Atmospheres
Volume118
Issue number10
DOIs
StatePublished - May 27 2013

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mesopause
radio signals
very low frequencies
radio
narrowband
temperature
Temperature
mesosphere
thermosphere
irradiance
solar radiation
lower ionosphere
atmospheres
atmosphere
Ionosphere
frequency measurement
estimates
monitors
ionosphere
receivers

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Oceanography
  • Forestry
  • Ecology
  • Aquatic Science
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Palaeontology

Cite this

Silber, Israel ; Price, Colin ; Rodger, Craig J. ; Haldoupis, Christos. / Links between mesopause temperatures and ground-based VLF narrowband radio signals. In: Journal of Geophysical Research Atmospheres. 2013 ; Vol. 118, No. 10. pp. 4244-4255.
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Links between mesopause temperatures and ground-based VLF narrowband radio signals. / Silber, Israel; Price, Colin; Rodger, Craig J.; Haldoupis, Christos.

In: Journal of Geophysical Research Atmospheres, Vol. 118, No. 10, 27.05.2013, p. 4244-4255.

Research output: Contribution to journalArticle

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