Physics
Scientific paper
Sep 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005georl..3218811f&link_type=abstract
Geophysical Research Letters, Volume 32, Issue 18, CiteID L18811
Physics
4
Atmospheric Processes: Planetary Meteorology (5445, 5739), Planetary Sciences: Fluid Planets: Polar Regions, Planetary Sciences: Fluid Planets: Orbital And Rotational Dynamics (1221), Planetary Sciences: Fluid Planets: Atmospheres (0343, 1060)
Scientific paper
Distinct atmospheric disturbances with zonal wave number 1 were found in the summer southern polar region of Mars using the Mars Global Surveyor (MGS) Thermal Emission Spectrometer (TES) retrieved temperatures provided by NASA. Our investigations show that the polar disturbances exist during summer (Ls = 250°-270°) in three consecutive Martian years. These disturbances have phase structures tilted westward with height, and connected with near-surface temperature anomalies whose maxima and minima are largely fixed to those of the surface temperature associated with the axially asymmetric polar cap. Such a wave structure is consistent with stationary planetary waves that are forced by axially asymmetric surface temperature anomaly and propagate upward in weak eastward winds flowing over the polar cap.
Fukuhara Tetsuya
Imamura Takeshi
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