DOI: 10.1002/jgrd.50379
论文题名: Links between mesopause temperatures and ground-based VLF narrowband radio signals
作者: Silber I. ; Price C. ; Rodger C.J. ; Haldoupis C.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 10 起始页码: 4244
结束页码: 4255
语种: 英语
英文关键词: mesopause
; SABER
; temperature change
; upper atmosphere
; VLF
Scopus关键词: Ionosphere
; Upper atmosphere
; mesopause
; Mesopause temperatures
; Mesosphere-lower thermospheres
; SABER
; Solar irradiance variability
; Temperature changes
; Temporal and spatial scale
; VLF
; Radio links
; ionosphere
; mesopause
; radio wave
; satellite data
; solar radiation
; temperature effect
; thermosphere
英文摘要: 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 ©2013. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63710
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Department of Geophysical, Atmospheric and Planetary Sciences, Tel Aviv University, Tel Aviv, Israel; Department of Physics, University of Otago, Dunedin, New Zealand; Physics Department, University of Crete, Crete, Greece
Recommended Citation:
Silber I.,Price C.,Rodger C.J.,et al. Links between mesopause temperatures and ground-based VLF narrowband radio signals[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(10)