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IMADYN : A field campaign to evaluate the potential of infrasound monitoring for atmospheric dynamics studies

Abstract : The infrasound monitoring is a new technique to study the dynamics of the upper atmosphere. Infrasound waves are reflected by the various atmospheric layers depending on the vertical profile of wind and temperature. The measurement of the characteristics of infrasound signals brings then very useful information on the structure and dynamics of the upper atmosphere. In the IMADYN project proposed to the French Agence National de la Recherche, specialists of atmospheric dynamics and infrasound atmospheric propagation will work together to assess the potential of the IMS network of microbarometers of the Comprehensive Nuclear-Test Ban Treaty-Organisation (CTBT-O), in order to improve our knowledge of the dynamics of the middle and upper atmosphere. The proposal is composed of two parts, the first one based on the exploitation of the existing IMS database in comparison with available meteorological and climatological atmospheric models. The second one is based on the organization of a field campaign at the Haute-Provence Observatory equipped with state of the art lidars and radars systems were microbarometers will be installed for a detailed study of infrasound propagation and atmospheric waves and perturbations.
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Submitted on : Friday, December 31, 2010 - 5:24:29 PM
Last modification on : Tuesday, November 16, 2021 - 4:17:22 AM
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  • HAL Id : hal-00550905, version 1


Alain Hauchecorne, Francis Dalaudier, Charles Cot, Elisabeth Blanc, Alexis Le Pichon, et al.. IMADYN : A field campaign to evaluate the potential of infrasound monitoring for atmospheric dynamics studies. 10ème Congrès Français d'Acoustique, Apr 2010, Lyon, France. ⟨hal-00550905⟩



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