MARC

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022 |a 1867-1381 
022 |a 1867-8548 
024 7 |a 10.5194/amt-18-6869-2025  |2 doi 
035 |a 3273633035 
045 2 |b d20250101  |b d20251231 
084 |a 123616  |2 nlm 
100 1 |a Megner, Linda  |u Department of Meteorology, Stockholm University, Stockholm, Sweden 
245 1 |a The MATS satellite: limb image data processing and calibration 
260 |b Copernicus GmbH  |c 2025 
513 |a Journal Article 
520 3 |a MATS (Mesospheric Airglow/Aerosol Tomography and Spectroscopy) is a Swedish satellite mission designed to investigate atmospheric gravity waves. In order to observe wave patterns, MATS observes structures in the <inline-formula><mml:math display="inline" id="M1"><mml:mrow class="chem"><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn mathvariant="normal">2</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula> atmospheric band airglow (light emitted by oxygen molecules in the mesosphere and lower thermosphere), as well as structures in noctilucent clouds (NLCs) which form around the mesopause. The main instrument is a telescope that continuously captures high-resolution images of the atmospheric limb. Using tomographic analysis of the acquired images, the MATS mission can reconstruct waves in three dimensions and provide a comprehensive global map of the properties of gravity waves. The data provided by the MATS satellite will thus be three-dimensional fields of airglow and NLC properties in 200 km-wide (across track) strips along the orbit at altitudes of 70 to 110 km. By adding spectroscopic analysis, by separating light into six distinct wavelength channels, it also becomes possible to derive temperature and microphysical NLC properties. Based on those data fields, further analysis will yield gravity wave parameters, such as the wavelengths, amplitudes, phase, and direction of the waves, on a global scale. The MATS satellite, funded by the Swedish National Space Agency, was launched in November&#xa0;2022 into a 580 km sun-synchronous orbit with a 17.25 local time of the ascending node (LTAN). This paper accompanies the public release of the Level 1b (v. 1.0) dataset from the MATS limb imager. The purpose of the paper is to provide background information in order to assist users to correctly and efficiently handle the data. As such, it details the image processing and how instrumental artefacts are handled. It also describes the calibration efforts that have been carried out on the basis of laboratory and in-flight observations, and it discusses uncertainties that affect the dataset. 
653 |a Mesosphere 
653 |a Calibration 
653 |a Satellite imagery 
653 |a Image processing 
653 |a Atmospheric gravity waves 
653 |a Airglow 
653 |a Thermosphere 
653 |a Gravity waves 
653 |a Datasets 
653 |a Sun-synchronous orbits 
653 |a Spectroscopy 
653 |a Spectroscopic analysis 
653 |a Image acquisition 
653 |a Wavelengths 
653 |a Satellites 
653 |a Clouds 
653 |a Metadata 
653 |a Data processing 
653 |a Image resolution 
653 |a Lower thermosphere 
653 |a Wavelength 
653 |a Data analysis 
653 |a Mirrors 
653 |a Noctilucent clouds 
653 |a Lower mantle 
653 |a Telescopes 
653 |a Atmosphere 
653 |a Temperature 
653 |a Mesopause 
653 |a Wave parameters 
653 |a Tomography 
653 |a Environmental 
700 1 |a Gumbel, Jörg  |u Department of Meteorology, Stockholm University, Stockholm, Sweden 
700 1 |a Christensen, Ole Martin  |u Department of Meteorology, Stockholm University, Stockholm, Sweden 
700 1 |a Linder, Björn  |u Department of Meteorology, Stockholm University, Stockholm, Sweden 
700 1 |a Murtagh, Donal P.  |u Earth and Space Sciences, Chalmers University of Technology, Göteborg, Sweden 
700 1 |a Ivchenko, Nickolay  |u School of Electrical Engineering, Royal Institute of Technology (KTH), Stockholm, Sweden 
700 1 |a Krasauskas, Lukas  |u Department of Meteorology, Stockholm University, Stockholm, Sweden 
700 1 |a Hedin, Jonas  |u Department of Meteorology, Stockholm University, Stockholm, Sweden 
700 1 |a Dillner, Joachim  |u Department of Meteorology, Stockholm University, Stockholm, Sweden 
700 1 |a Giono, Gabriel  |u School of Electrical Engineering, Royal Institute of Technology (KTH), Stockholm, Sweden 
700 1 |a Olentsenko, Georgi  |u School of Electrical Engineering, Royal Institute of Technology (KTH), Stockholm, Sweden 
700 1 |a Kern, Louis  |u Department of Meteorology, Stockholm University, Stockholm, Sweden 
700 1 |a Möller, Joakim  |u Molflow, Göteborg, Sweden 
700 1 |a Skyman, Ida-Sofia  |u Molflow, Göteborg, Sweden 
700 1 |a Stegman, Jacek  |u Department of Meteorology, Stockholm University, Stockholm, Sweden 
773 0 |t Atmospheric Measurement Techniques  |g vol. 18, no. 22 (2025), p. 6869-6893 
786 0 |d ProQuest  |t Advanced Technologies & Aerospace Database 
856 4 1 |3 Citation/Abstract  |u https://www.proquest.com/docview/3273633035/abstract/embedded/L8HZQI7Z43R0LA5T?source=fedsrch 
856 4 0 |3 Full Text  |u https://www.proquest.com/docview/3273633035/fulltext/embedded/L8HZQI7Z43R0LA5T?source=fedsrch 
856 4 0 |3 Full Text - PDF  |u https://www.proquest.com/docview/3273633035/fulltextPDF/embedded/L8HZQI7Z43R0LA5T?source=fedsrch