The MATS satellite mission – gravity wave studies by Mesospheric Airglow/Aerosol Tomography and Spectroscopy

Gumbel, Jörg; Megner, Linda; Christensen, Ole Martin; Ivchenko, Nickolay; Murtagh, Donal P.; Chang, Seunghyuk; Dillner, Joachim; Ekebrand, Terese; Giono, Gabriel; Hammar, Arvid; Hedin, Jonas; Karlsson, Bodil; Krus, Mikael; Li, Anqi; McCallion, Steven; Olentšenko, Georgi; Pak, Soojong; Park, Woojin; Rouse, Jordan; Stegman, Jacek; Witt, Georg

Global three-dimensional data are a key to understanding gravity waves 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 inline-formulaO2 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 include a characterization of gravity waves and their interaction with larger-scale waves and mean flow 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 to be ready for a launch in 2020. This paper provides an overview of scientific goals, measurement concepts, instruments, and analysis ideas.



Gumbel, Jörg / Megner, Linda / Christensen, Ole Martin / et al: The MATS satellite mission – gravity wave studies by Mesospheric Airglow/Aerosol Tomography and Spectroscopy. 2020. Copernicus Publications.


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