Print Email Facebook Twitter Infrasonic interferometry of stratospherically refracted microbaroms: A numerical study Title Infrasonic interferometry of stratospherically refracted microbaroms: A numerical study Author Fricke, J.T. El Allouche, N. Simons, D.G. Ruigrok, E.N. Wapenaar, C.P.A. Evers, L.G. Faculty Aerospace Engineering Department Control & Operations Date 2013-10-01 Abstract The atmospheric wind and temperature can be estimated through the traveltimes of infrasound between pairs of receivers. The traveltimes can be obtained by infrasonic interferometry. In this study, the theory of infrasonic interferometry is verified and applied to modeled stratospherically refracted waves. Synthetic barograms are generated using a raytracing model and taking into account atmospheric attenuation, geometrical spreading, and phase shifts due to caustics. Two types of source wavelets are implemented for the experiments: blast waves and microbaroms. In both numerical experiments, the traveltimes between the receivers are accurately retrieved by applying interferometry to the synthetic barograms. It is shown that microbaroms can be used in practice to obtain the traveltimes of infrasound through the stratosphere, which forms the basis for retrieving the wind and temperature profiles. To reference this document use: http://resolver.tudelft.nl/uuid:3f9194dc-95ba-4799-8feb-2edfc3e8d512 DOI https://doi.org/10.1121/1.4819117 Publisher Acoustical Society of America Embargo date 2014-04-01 ISSN 0001-4966 Source https://doi.org/10.1121/1.4819117 Source Journal of the Acoustical Society of America, 134 (4), 2013 Part of collection Institutional Repository Document type journal article Rights © 2013 Acoustical Society of America Files PDF 296920.pdf 2.2 MB Close viewer /islandora/object/uuid:3f9194dc-95ba-4799-8feb-2edfc3e8d512/datastream/OBJ/view