Planetary and gravity waves in the mesosphere and lower thermosphere |
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| Institution: | 1. Department of Environmental, Earth and Atmospheric Sciences, University of Massachusetts Lowell, Lowell, MA 01854, USA;2. Research Unit Lasers and Spectroscopies (LLS), Institute of Life, Earth and Environment (ILEE), University of Namur (UNamur), 61 rue de Bruxelles, B-5000 Namur, Belgium;3. Royal Belgian Institute for Space Aeronomy (BIRA-IASB), 3 Avenue Circulaire, 1180 Brussels, Belgium;4. Groupe de Spectrométrie Moléculaire et Atmosphérique, UMR CNRS 7331, Université de Reims, U.F.R. Sciences, B.P. 1039, 51687 Reims Cedex 2, France;5. Laboratory of Quantum mechanics and Radiative Processes, Tomsk State University, 36 Lenin avenue, 634050, Russia;6. Laboratory of Theoretical Spectroscopy, V.E. Zuev Institute of Atmospheric Optics, SB RAS 1, Akademician Zuev Sq., Tomsk 634055, Russian Federation;7. Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom;1. Department of Physics, Old Dominion University, Norfolk, VA, United States;2. Department of Chemistry, Old Dominion University, Norfolk, VA, United States;3. Department of Chemistry, University of Waterloo, Waterloo, Ontario, Canada |
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| Abstract: | Planetary and gravity waves contribute significantly to the variability of atmospheric parameters in the middle atmosphere. In the mesosphere and lower thermosphere the wave fluctuations are sufficiently large to often mask the prevailing or mean state of the atmosphere. This review summarizes current knowledge about the motion, temperature and density fields associated with both large and small scale waves and stresses improved understanding that has come from recent ground based, rocket and satellite investigations. |
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