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Discussion papers
https://doi.org/10.5194/acp-2018-1162
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-2018-1162
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 17 Dec 2018

Research article | 17 Dec 2018

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Atmospheric Chemistry and Physics (ACP).

The MATS Satellite Mission – Gravity Waves Studies by Mesospheric Airglow/Aerosol Tomography and Spectroscopy

Jörg Gumbel1, Linda Megner1, Ole Martin Christensen1,2, Seunghyuk Chang3, Joachim Dillner1, Terese Ekebrand4, Gabriel Giono5, Arvid Hammar4,6, Jonas Hedin1, Nickolay Ivchenko5,7, Bodil Karlsson1, Mikael Kruse4, Anqi Li2, Steven McCallion4, Donal P. Murtagh2, Georgi Olentšenko5, Soojong Pak8, Woojin Park8, Jordan Rouse4, Jacek Stegman1, and Georg Witt1 Jörg Gumbel et al.
  • 1Department of Meteorology (MISU), Stockholm University, Stockholm, Sweden
  • 2Earth and Space Sciences, Chalmers University of Technology, Göteborg, Sweden
  • 3Center for Integrated Smart Sensors, KAIST Dogok Campus, Seoul, Republic of Korea
  • 4Omnisys Instruments AB, August Barks gata 6B, Västra Frölunda, Sweden
  • 5School of Electrical Engineering, Royal Institute of Technology (KTH), Stockholm, Sweden
  • 6Department of Microtechnology and Nanoscience, Chalmers University of Technology, Göteborg, Sweden
  • 7South African National Space Agency, Hermanus 7200, South Africa
  • 8School of Space Research, Kyung Hee University, Yongin-si, Republic of Korea

Abstract. Global three-dimensional data are a key to understanding gravity wave interactions in the mesosphere and lower thermosphere. MATS (Mesospheric Airglow/Aerosol Tomography and Spectroscopy) is a new Swedish satellite mission that addresses this need. It applies space-borne limb imaging in combination with tomographic and spectroscopic analysis to obtain gravity wave data on relevant spatial scales. Primary measurement targets are O2 Atmospheric Band dayglow and nightglow in the near infrared, and sunlight scattered from noctilucent clouds in the ultraviolet. While tomography provides horizontally and vertically resolved data, spectroscopy allows analysis in terms of mesospheric temperature, composition, and cloud properties. Based on these dynamical tracers, MATS will produce a climatology on wave spectra during a 2-year mission. Major scientific objectives concern a characterization of gravity waves and their interactions in the mesosphere and lower thermosphere, as well as their relationship to dynamical conditions in the lower and upper atmosphere. MATS is currently being prepared for launch in 2019. This paper provides an overview over scientific goals, measurement concepts, instruments, and analysis ideas.

Jörg Gumbel et al.
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Atmospheric waves are important as they can link together conditions over large distances. MATS is a new Swedish satellite to be launched in 2019 that will study waves at altitudes around 80–110 km. MATS will take images of emissions from excited molecules, so-called airglow, and of the highest clouds in our atmosphere, so-called noctilucent clouds. These measurements will be analysed to provide three-dimensional wave structures, and these can then be related to other atmospheric altitudes.
Atmospheric waves are important as they can link together conditions over large distances. MATS...
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