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Thermal tides in the Martian middle atmosphere as seen by the Mars Climate Sounder
Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, California, USA
Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, California, USA
Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, California, USA
Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, California, USA
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA
Department of Astronomy, Cornell University, Ithaca, New York, USA
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA
Department of Atmospheric Sciences, University of Washington, Seattle, Washington, USA
Department of Physics, University of Oxford, Oxford, UK
Department of Astronomy, Cornell University, Ithaca, New York, USA
The first systematic observations of the middle atmosphere of Mars (35–80km) with the Mars Climate Sounder (MCS) show dramatic patterns of diurnal thermal variation, evident in retrievals of temperature and water ice opacity. At the time of writing, the data set of MCS limb retrievals is sufficient for spectral analysis within a limited range of latitudes and seasons. This analysis shows that these thermal variations are almost exclusively associated with a diurnal thermal tide. Using a Martian general circulation model to extend our analysis, we show that the diurnal thermal tide dominates these patterns for all latitudes and all seasons.
Received 23 October 2008; accepted 6 January 2009; published 19 March 2009.
Citation: (2009), Thermal tides in the Martian middle atmosphere as seen by the Mars Climate Sounder, J. Geophys. Res., 114, E03005, doi:10.1029/2008JE003285.
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