On the formation of atmospheric inhomogeneities in the solar terminator region |
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| Affiliation: | 1. UMR E-4320 TIRO-MATOs CEA/DRF/BIAM, Université Nice Sophia-Antipolis, Faculté de Médecine Nice, 28 avenue de Valombrose, 06107, Nice, France;2. Institut de Pharmacologie Moléculaire et Cellulaire, UMR7275, CNRS, Université Nice Sophia-Antipolis, 660 route des Lucioles, 06560, Valbonne, France;3. Service de Rhumatologie, CHU de Nice, Nice, France;1. Borok Geophysical Observatory of Schmidt Institute of Physics of the Earth of RAS, 152742, Borok, Yaroslavl, Russian Federation;2. Geophysical Research Department, Institute of Applied Physics RAS, 603950 Nizhny Novgorod, Russian Federation |
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| Abstract: | The present work is a systematic review cum report on theoretical and experimental investigations of the Solar Terminator (ST) as a physical, permanent, and global source of waves in near-Earth space (NES). From the founding work by Beer (1973) Nature242, 34–35 and Somsikov and Troitskii (1975) Geomagn. and Aeron., 15, 856–860, up to the present, twenty years of theoretical and experimental investigations on the effectiveness of wave generation in various geophysical situations have been considered. Linear mechanisms of atmospheric inhomogeneity formation are considered for the case of a moving discontinuity in some of the atmospheric parameters, whereas nonlinear mechanisms are characterized by various instabilities caused by the gradient in solar radiation absorption. Numerical simulations of an ST model and the pressure wave field generated by it are discussed. |
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