TIMED Doppler Interferometer measurements of neutral winds at the mesosphere and lower thermosphere and comparison to meteor radar winds
<p>The mesosphere and lower thermosphere (MLT) comprise a highly variable region that forms the transition region between the middle and upper atmosphere. The variability of this region is driven by atmospheric waves transporting energy and momentum from the lower and middle atmosphere to MLT...
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Copernicus Publications
2025-07-01
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| Series: | Annales Geophysicae |
| Online Access: | https://angeo.copernicus.org/articles/43/427/2025/angeo-43-427-2025.pdf |
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| author | A. Gauthier A. Gauthier A. Gauthier C. Borries A. Kozlovsky D. Janches P. Brown P. Brown D. Vida C. Jacobi D. Murphy M. Tsutsumi M. Tsutsumi N. Gulbrandsen S. Nozawa M. Lester J. Kero N. Mitchell N. Mitchell T. Moffat-Griffin G. Stober G. Stober |
| author_facet | A. Gauthier A. Gauthier A. Gauthier C. Borries A. Kozlovsky D. Janches P. Brown P. Brown D. Vida C. Jacobi D. Murphy M. Tsutsumi M. Tsutsumi N. Gulbrandsen S. Nozawa M. Lester J. Kero N. Mitchell N. Mitchell T. Moffat-Griffin G. Stober G. Stober |
| author_sort | A. Gauthier |
| collection | DOAJ |
| description | <p>The mesosphere and lower thermosphere (MLT) comprise a highly variable region that forms the transition region between the middle and upper atmosphere. The variability of this region is driven by atmospheric waves transporting energy and momentum from the lower and middle atmosphere to MLT altitudes. These waves cover a wide range of temporal (minutes to days) and spatial (kilometers to planetary) scales. The upward propagation of atmospheric gravity waves and tides is one of the key processes at all latitudes that alters the state of the ionosphere–thermosphere system, and their vertical propagation depends crucially on the background mean winds. The TIMED Doppler Interferometer (TIDI) on board the Thermosphere-Ionosphere-Mesosphere-Energetics and Dynamics (TIMED) satellite observes neutral winds at the MLT using airglow emissions. We establish a TIDI mean wind climatology, compare our results with existing climatologies derived from local meteor radar observations, and discuss similarities and differences depending on local time and geographical latitude.</p> |
| format | Article |
| id | doaj-art-dcc31fe7b94348df8fd120e942c0e19b |
| institution | DOAJ |
| issn | 0992-7689 1432-0576 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Annales Geophysicae |
| spelling | doaj-art-dcc31fe7b94348df8fd120e942c0e19b2025-08-20T03:13:32ZengCopernicus PublicationsAnnales Geophysicae0992-76891432-05762025-07-014342744010.5194/angeo-43-427-2025TIMED Doppler Interferometer measurements of neutral winds at the mesosphere and lower thermosphere and comparison to meteor radar windsA. Gauthier0A. Gauthier1A. Gauthier2C. Borries3A. Kozlovsky4D. Janches5P. Brown6P. Brown7D. Vida8C. Jacobi9D. Murphy10M. Tsutsumi11M. Tsutsumi12N. Gulbrandsen13S. Nozawa14M. Lester15J. Kero16N. Mitchell17N. Mitchell18T. Moffat-Griffin19G. Stober20G. Stober21Institute of Applied Physics, University of Bern, Bern, SwitzerlandOeschger Center for Climate Change Research, University of Bern, Bern, SwitzerlandInstitute for Solar-Terrestrial Physics, German Aerospace Center (DLR), Neustrelitz, GermanyInstitute for Solar-Terrestrial Physics, German Aerospace Center (DLR), Neustrelitz, GermanySodankylä Geophysical Observatory, University of Oulu, Oulu, FinlandITM Physics Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD, USADept. of Physics and Astronomy, University of Western Ontario, London, Ontario, CanadaWestern Institute for Earth and Space Exploration, University of Western Ontario, London, Ontario, CanadaDept. of Physics and Astronomy, University of Western Ontario, London, Ontario, CanadaInstitute for Meteorology, Leipzig University, Leipzig, GermanyAustralian Antarctic Division, Kingston, Tasmania, AustraliaNational Institute of Polar Research, Tachikawa, JapanThe Graduate University for Advanced Studies (SOKENDAI), Tokyo, JapanTromsø Geophysical Observatory, UiT – The Arctic University of Norway, Tromsø, NorwayInstitute for Space-Earth Environmental Research, Nagoya University, Nagoya, JapanUniversity of Leicester, Leicester, UKSwedish Institute of Space Physics (IRF), Kiruna, SwedenBritish Antarctic Survey, Cambridge, CB3 0ET, UKDepartment of Electronic and Electrical Engineering, University of Bath, Bath, UKBritish Antarctic Survey, Cambridge, CB3 0ET, UKInstitute of Applied Physics, University of Bern, Bern, SwitzerlandOeschger Center for Climate Change Research, University of Bern, Bern, Switzerland<p>The mesosphere and lower thermosphere (MLT) comprise a highly variable region that forms the transition region between the middle and upper atmosphere. The variability of this region is driven by atmospheric waves transporting energy and momentum from the lower and middle atmosphere to MLT altitudes. These waves cover a wide range of temporal (minutes to days) and spatial (kilometers to planetary) scales. The upward propagation of atmospheric gravity waves and tides is one of the key processes at all latitudes that alters the state of the ionosphere–thermosphere system, and their vertical propagation depends crucially on the background mean winds. The TIMED Doppler Interferometer (TIDI) on board the Thermosphere-Ionosphere-Mesosphere-Energetics and Dynamics (TIMED) satellite observes neutral winds at the MLT using airglow emissions. We establish a TIDI mean wind climatology, compare our results with existing climatologies derived from local meteor radar observations, and discuss similarities and differences depending on local time and geographical latitude.</p>https://angeo.copernicus.org/articles/43/427/2025/angeo-43-427-2025.pdf |
| spellingShingle | A. Gauthier A. Gauthier A. Gauthier C. Borries A. Kozlovsky D. Janches P. Brown P. Brown D. Vida C. Jacobi D. Murphy M. Tsutsumi M. Tsutsumi N. Gulbrandsen S. Nozawa M. Lester J. Kero N. Mitchell N. Mitchell T. Moffat-Griffin G. Stober G. Stober TIMED Doppler Interferometer measurements of neutral winds at the mesosphere and lower thermosphere and comparison to meteor radar winds Annales Geophysicae |
| title | TIMED Doppler Interferometer measurements of neutral winds at the mesosphere and lower thermosphere and comparison to meteor radar winds |
| title_full | TIMED Doppler Interferometer measurements of neutral winds at the mesosphere and lower thermosphere and comparison to meteor radar winds |
| title_fullStr | TIMED Doppler Interferometer measurements of neutral winds at the mesosphere and lower thermosphere and comparison to meteor radar winds |
| title_full_unstemmed | TIMED Doppler Interferometer measurements of neutral winds at the mesosphere and lower thermosphere and comparison to meteor radar winds |
| title_short | TIMED Doppler Interferometer measurements of neutral winds at the mesosphere and lower thermosphere and comparison to meteor radar winds |
| title_sort | timed doppler interferometer measurements of neutral winds at the mesosphere and lower thermosphere and comparison to meteor radar winds |
| url | https://angeo.copernicus.org/articles/43/427/2025/angeo-43-427-2025.pdf |
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