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Discussion papers
https://doi.org/10.5194/acp-2018-1043
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-2018-1043
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: research article 01 Feb 2019

Submitted as: research article | 01 Feb 2019

Review status
This discussion paper is a preprint. A revision of this manuscript was accepted for the journal Atmospheric Chemistry and Physics (ACP) and is expected to appear here in due course.

Simultaneous in situ measurements of small-scale structures in neutral, plasma, and atomic oxygen densities during WADIS sounding rocket project

Boris Strelnikov1, Martin Eberhart4, Martin Friedrich5, Jonas Hedin3, Mikhail Khaplanov3,†, Gerd Baumgarten1, Bifford P. Williams6, Tristan Staszak1, Heiner Asmus1, Irina Strelnikova1, Ralph Latteck1, Mykhaylo Grygalashvyly1, Franz-Josef Lübken1, Josef Höffner1, Raimund Wörl1, Jörg Gumbel3, Stefan Löhle4, Stefanos Fasoulas4, Markus Rapp2, Aroh Barjatya7, Michael J. Taylor8, and Pierre-Dominique Pautet8 Boris Strelnikov et al.
  • 1Leibniz-Institute of Atmospheric Physics at the Rostock University, Kühlungsborn, Germany
  • 2Deutsches Zentrum für Luft- und Raumfahrt, Institut für Physik der Atmosphäre, Oberpfaffenhofen, Germany
  • 3Department of Meteorology (MISU), Stockholm University, Stockholm, Sweden
  • 4University of Stuttgart, Institute of Space Systems, Stuttgart, Germany
  • 5Graz University of Technology, Graz, Austria
  • 6GATS, Boulder, USA
  • 7Embry-Riddle Aeronautical University, FL, USA
  • 8Center for Atmospheric and Space Sciences, Utah State University, Logan, Utah, USA
  • Deceased

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 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 change of its diffusion properties.

Boris Strelnikov et al.
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Boris Strelnikov et al.
Boris Strelnikov et al.
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Short summary
Sounding rockets are the only mean of measuring small-scale structures (i.e. spatial scales of kilometers to centimeters) in the Earth's middle atmosphere (50–120 km). We present and analyze brand-new high resolution measurements of atomic oxygen (O) concentration together with high resolution measurements of ionospheric plasma and neutral air parameters. We found a new behavior of the O inside turbulent layers, which might be essential to adequately model weather and climate.
Sounding rockets are the only mean of measuring small-scale structures (i.e. spatial scales of...
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