Simultaneous nightglow and Na lidar observations at Arecibo during the AIDA-89 campaign |
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| Institution: | 1. Space and Environment Technology Center, The Aerospace Corporation, Los Angeles, CA 90009, U.S.A.;2. Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana-Champaign, IL 61801, U.S.A.;3. Arecibo Observatory, Arecibo, PR 00613, U.S.A.;1. Space Science Division, Naval Research Laboratory, Washington, DC, USA;2. Spacecraft Engineering Department, Naval Research Laboratory, Washington, DC, USA;3. Material Science and Technology Division, Naval Research Laboratory, Washington, DC, USA;4. Department of Physics and Astronomy, George Mason University, Fairfax, VA, USA;5. Emeritus, Naval Research Laboratory, Washington, DC, USA;1. Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Ministry of Education, Wuhan 430070, Hubei Province, PR China;2. National Key Laboratory of Agro-Microbiology, Huazhong Agricultural University, Wuhan 430070, Hubei Province, PR China;3. College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, Hubei Province, PR China;4. Institute of Quality Standard and Testing Technology for Agro-Products, Hubei Academy of Agricultural Sciences, Wuhan 430070, Hubei Province, PR China;1. Planetary Aeronomy, Belgian Institute for Space Aeronomy, 3 av. Circulaire, B-1180 Brussels, Belgium;2. Fonds National de la Recherche Scientifique, rue d’Egmont 5, B-1000 Brussels, Belgium;3. Department of Planetary Sciences, University of Arizona, 1629 E. University Blvd, Tucson, AZ 85721, United States;4. Department of Atmospheric, Oceanic, and Space Sciences, University of Michigan, 2455 Hayward St., Ann Arbor, MI 48109, United States;5. LATMOS—UVSQ/CNRS/IPSL, 11 bd d’Alembert, 78280 Guyancourt, France;6. Abteilung Planetenforschung, Rheinisches Institut für Umweltforschung, Universität zu Köln, Cologne, Germany;7. Institut für Raumfahrttechnik, Universität der Bundeswehr München, Neubiberg, Germany;8. Institut Pierre Simon Laplace, Université de Versailles-Saint-Quentin, 78280 Guyancourt, France;1. Centre National d׳Etudes Spatiales (CNES), 18, avenue Edouard Belin, 31401 Toulouse Cedex 9, France;2. CEA-Leti (French Atomic Energy and Alternative Energies Commission/Electronics and Information Technology Laboratory), Grenoble, France;3. Institut de Physique du Globe de Paris (IPGP), Sorbonne Paris Cité, Université Paris Diderot, CNRS, Paris, France |
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| Abstract: | Simultaneous nightglow and Na lidar observations made at Arecibo during the AIDA-89 campaign are reported from between 0000 and 0530 LT (Local Time) on 6 April 1989 and on 9 April 1989. On 9 April the observations are consistent with the presence of a large amplitude 8.5 km vertical wavelength, 4 h period wave propagating through the 85–91 km region. A lower amplitude 80 min period wave is also observed. The results imply that the O2 atmospheric band intensity peaked near 91 km while the OH Meinel (6,2) band intensity peaked near 85 km. The OH Meinel temperature and intensity are 160° out of phase which can be explained by low eddy diffusion and high ozone densities near the mesopause. The integrated Na abundance from 87 to 89 (90–92) km correlates well with the OH Meinel (O2 atmospheric) band intensity. On 5–6 April the OH Meinel and O2 atmospheric band intensities are not well correlated. The OH Meinel intensity is correlated with the integrated Na abundance from 86 to 88 km. Both the Na and OH measurements reveal the presence of an approximately 1 h period wave. The OH temperature data appear to be consistent with the OH Meinel band originating near 85 km. The O2 atmospheric band data show the presence of a 2 h period wave. The integrated Na abundance data suggest that the O2 atmospheric band peaks between 90 and 94 km. A large sporadic Na event which occurs near 6 UT appears related to the presence of a gravity wave near 95 km. In all of the observed waves there is good agreement between the wave parameters derived separately by the optical airglow and Na lidar techniques. |
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