Large scale coherence of the mesospheric and upper stratospheric temperature fluctuations |
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| Affiliation: | 1. Ghent Research Group on Nanomedicines, Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, 9000 Ghent, Belgium;2. Cell Death Investigation and Therapy Laboratory, Department of Human Structure and Repair, Faculty of Medicine and Health Sciences, Ghent University, 9000 Ghent, Belgium;3. Cancer Research Institute Ghent, 9000 Ghent, Belgium;4. Department of Pathophysiology, Sechenov First Moscow State Medical University (Sechenov University), 119146 Moscow, Russia;1. Laboratoire d''Océanographie Physique et Spatial (LOPS), Institut Français de Recherche et d''Exploitation de la MER (IFREMER), Centre Bretagne, ZI de la Pointe du Diable, CS 10070, 29280, Plouzané, France;2. Satellite Oceanography Laboratory, Russian State Hydrometeorological University (RSHU), Malookhtinsky prosp. 98, St. Petersburg 195196, Russia;3. European Space Agency, ESTEC, Earth Observation Programme Directorate, Mission Science Division, Keplerlaan 1, 2200 AG Noordwijk, The Netherlands;1. Institute of Applied Physics RAS, 46 Ul’yanov Street, Nizhny Novgorod 603950, Russia;2. Department of Environmental, Earth, and Atmospheric Sciences, University of Massachusetts Lowell, Lowell, MA 01854, USA;3. Research Unit Lasers and Spectroscopies (LLS), Institute of Life, Earth and Environment (ILEE), University of Namur (UNamur), 61 rue de Bruxelles, Namur, B-5000, Belgique;4. Royal Belgian Institute for Space Aeronomy (BIRA-IASB), 3 Avenue Circulaire, Brussels 1180, Belgium;5. National Research Council of Italy, Institute of Methodologies for Environmental Analysis, Potenza 85050, Italy;6. Massachusetts Institute of Technology, Cambridge, MA 02139, USA |
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| Abstract: | A large set of temperature profiles has been obtained in the upper stratosphere and the mesosphere over Europe during the MAP/WINE compaign by the use of different techniques: datasondes and falling spheres launched by metrockets, ground-based OH spectrometers and a Rayleigh lidar. These data have been used to study the large scale variability of the middle atmosphere during the winter 1983–1984. The temperature variations with periods longer than 25 days are clearly related to the succession of minor upper stratospheric warmings observed during this winter. The variations in the period range 10–20 days are at least partially due to westward propagating Rossby waves, of which one mode, with a 12.5 days period, is tentatively identified as the second symmetric mode of the wave number 2. |
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