Daytime laser sounding in the visible wavelength region - Application to the study of atomic sodium in the mesosphere

Claire Granier (1) , Jacques Porteneuve (1) , Gérard Mégie (1)

1 SA - Service d'aéronomie

Daytime atmospheric laser soundings have been performed in the visible wavelength range by means of a new optical set-up. Observations at the Haute-Provence Observatory (44 deg N, 6 deg E) of the atomic sodium layer in the upper atmosphere confirm the nonvariation of the sodium total content during the day-night transition and show that during the day the behavior of neutral sodium is controlled by dynamic processes.

Mots clés: Atmospheric Sounding; Daytime; Laser Spectroscopy; Mesosphere; Sodium; Visible Spectrum; Atomic Spectra; Concentration (Composition); Vertical Distribution; Geophysics

Domaines: Physique Atmosphérique et Océanique [physics.ao-ph]; Océan, Atmosphère

Claire Granier, Jacques Porteneuve, Gérard Mégie. Daytime laser sounding in the visible wavelength region - Application to the study of atomic sodium in the mesosphere. Comptes Rendus de l'Académie des sciences Série 2 - Mécanique-physique, Chimie, Sciences de l'univers, Sciences de la Terre, 1981, 292 (4), pp.401-404. ⟨insu-03590481⟩