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30 November 2017 Multi-year changes of mesoscale variations in atmospheric parameters from the data of GNSS satellites
Nikolai M. Gavrilov, Rada O. Manuilova
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Proceedings Volume 10466, 23rd International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 1046679 (2017) https://doi.org/10.1117/12.2284632
Event: XXIII International Symposium, Atmospheric and Ocean Optics, Atmospheric Physics, 2017, Irkutsk, Russian Federation
Abstract
Multiyear global climatology of mesoscale variations of atmospheric parameters at altitudes 2 - 35 km from radio occultation experiments with low-orbit satellites receiving GNSS signals is considered. Numerical filtering of vertical radio refraction profiles gives information about standard deviations of variations with vertical scales less than 8 km. Global distributions of the standard deviations are subjects for significant inter-annual changes in the tropo-stratosphere. Seasonal changes of radio refraction and temperature standard deviations obtained with Microlab 1, CHAMP and COSMIC satellites are analyzed and compared. At low latitudes, quasi-biennial oscillations exist. The causes of mesoscale variability may be convection, acoustic-gravity waves and turbulence in the atmosphere.
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Nikolai M. Gavrilov and Rada O. Manuilova "Multi-year changes of mesoscale variations in atmospheric parameters from the data of GNSS satellites", Proc. SPIE 10466, 23rd International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 1046679 (30 November 2017); https://doi.org/10.1117/12.2284632
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KEYWORDS
Satellite navigation systems
Satellites
Climatology
Refraction
Temperature metrology
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