Simultaneous in situ measurements of small-scale structures in neutral, plasma, and atomic oxygen densities during the WADIS sounding rocket project
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Published:2019-09-11
Issue:17
Volume:19
Page:11443-11460
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ISSN:1680-7324
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Container-title:Atmospheric Chemistry and Physics
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language:en
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Short-container-title:Atmos. Chem. Phys.
Author:
Strelnikov Boris, Eberhart Martin, Friedrich MartinORCID, Hedin Jonas, Khaplanov Mikhail, Baumgarten GerdORCID, Williams Bifford P.ORCID, Staszak Tristan, Asmus Heiner, Strelnikova Irina, Latteck RalphORCID, Grygalashvyly MykhayloORCID, Lübken Franz-Josef, Höffner Josef, Wörl Raimund, Gumbel Jörg, Löhle StefanORCID, Fasoulas Stefanos, Rapp MarkusORCID, Barjatya Aroh, Taylor Michael J.ORCID, Pautet Pierre-DominiqueORCID
Abstract
Abstract. In this paper we present an overview of measurements conducted during the WADIS-2 rocket campaign. We investigate the effect of small-scale processes like gravity waves and turbulence on the distribution of atomic oxygen and other species in the mesosphere–lower thermosphere (MLT) region. Our analysis suggests that density fluctuations of atomic oxygen are coupled to fluctuations of other constituents, i.e., plasma and neutrals. Our measurements show that all measured quantities, including winds, densities, and temperatures, reveal signatures of both waves and turbulence. We show observations of gravity wave saturation and breakdown together with simultaneous measurements of generated turbulence. Atomic oxygen inside turbulence layers shows two different spectral behaviors, which might imply a change in its diffusion properties.
Funder
Deutsches Zentrum für Luft- und Raumfahrt
Publisher
Copernicus GmbH
Subject
Atmospheric Science
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