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 language | English (US) |
|---|---|
| Pages (from-to) | 4244-4255 |
| Number of pages | 12 |
| Journal | Journal of Geophysical Research Atmospheres |
| Volume | 118 |
| Issue number | 10 |
| DOIs | |
| State | Published - May 27 2013 |
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- 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
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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 journal › Article
TY - JOUR
T1 - Links between mesopause temperatures and ground-based VLF narrowband radio signals
AU - Silber, Israel
AU - Price, Colin
AU - Rodger, Craig J.
AU - Haldoupis, Christos
PY - 2013/5/27
Y1 - 2013/5/27
N2 - 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
AB - 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
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U2 - 10.1002/jgrd.50379
DO - 10.1002/jgrd.50379
M3 - Article
AN - SCOPUS:84881152399
VL - 118
SP - 4244
EP - 4255
JO - Journal of Geophysical Research
JF - Journal of Geophysical Research
SN - 0148-0227
IS - 10
ER -