Rayleigh and Resonance Sounding of the Stratosphere and Mesosphere
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Lidar measurements of atmospheric species and physical parameters have been performed by our group from the Haute Provence Observatory (44°N, 6°E) since the early seventies. Until 1975, the main emphasis was placed on studying the upper atmosphere, and more precisely the alkali metals present in the atmosphere, between 80 and 100 km : Na(1), K(2) and more recently Li(3). In the last 6 years we have extended our lidar facility to study the middle and lower atmosphere using Rayleigh and Mie scattering as well as range-resolved differential absorption technique. In this presentation I shall limit myself to present the state of the art in Lidar measurements in the stratosphere and mesosphere using resonance and Rayleigh scattering. As the detection of Rayleigh scattering up to 90 km came as a consequence of successive refinements on the resonant detection of the alkalis, both processes will be presented in their chronological order as a source of geophysical data.
KeywordsEddy Diffusion Atomic Lithium Lidar Measurement Stratospheric Warming Lidar Observation
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