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Title: Retrieving horizontally resolved wind fields using multi-static meteor radar observations
Authors: Stober, G.Chau, J.L.Vierinen, J.Jacobi, C.Wilhelm, S.
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Issue Date: 2018
Published in: Atmospheric Measurement Techniques Vol. 11 (2018), No. 8
Publisher: Göttingen : Copernicus GmbH
Abstract: Recently, the MMARIA (Multi-static, Multi-frequency Agile Radar for Investigations of the Atmosphere) concept of a multi-static VHF meteor radar network to derive horizontally resolved wind fields in the mesosphere-lower thermosphere was introduced. Here we present preliminary results of the MMARIA network above Eastern Germany using two transmitters located at Juliusruh and Collm, and five receiving links: two monostatic and three multi-static. The observations are complemented during a one-week campaign, with a couple of addition continuous-wave coded transmitters, making a total of seven multi-static links. In order to access the kinematic properties of non-homogenous wind fields, we developed a wind retrieval algorithm that applies regularization to determine the non-linear wind field in the altitude range of 82-98 km. The potential of such observations and the new retrieval to investigate gravity waves with horizontal scales between 50-200 km is presented and discussed. In particular, it is demonstrated that horizonal wavelength spectra of gravity waves can be obtained from the new data set. © Author(s) 2018.
Keywords: algorithm; gravity wave; kinematics; mesosphere; radar; thermosphere; wavelength; wind field; Germany
DDC: 550
License: CC BY 4.0 Unported
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