Vertical and latitudinal structure of the migrating diurnal tide in the Martian atmosphere: Numerical investigations

Details Vertical and latitudinal structure of the migrating diurnal tide in the Martian atmosphere: Numerical investigations Vertical and latitudinal structure of the migrating diurnal tide in the Martian atmosphere: Numerical investigations

Jan 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006jgre..11101003t&link_type=abstract

Journal of Geophysical Research, Volume 111, Issue E1, CiteID E01003

Physics

3

Atmospheric Composition And Structure: Planetary Atmospheres (5210, 5405, 5704), Atmospheric Processes: General Circulation (1223), Atmospheric Processes: Tides And Planetary Waves

Scientific paper

We investigate the vertical and latitudinal structure of the migrating diurnal tide in a low dust condition (dust optical depth of 0.3 at 0.67 μm) in the Martian atmosphere by using a general circulation model (GCM) and a linear response model (LRM). The migrating diurnal tide simulated in our Mars GCM well represents general characteristics of the migrating diurnal tide which have been reported in previous observational and GCM studies. The GCM simulation shows that the vertical wavelength of the migrating diurnal tide in the low latitude region at equinox is ~45 km which is larger than that of the major propagating mode predicted from the classical tidal theory (~25-35 km). The Hough function decomposition and the numerical experiments using the LRM reveal that the large vertical wavelength of the migrating diurnal tide is caused by the effects of the zonal mean vorticity $\bar{\zeta. It is suggested that the vertical wavelength of the migrating diurnal tide increases through the changes of the effects of the planetary rotation in the presence of non-zero zonal mean vorticity $\bar{\zeta. Such a strong dependence of the vertical wavelength of the migrating diurnal tide on $\bar{\zeta is not observed in the Earth's atmosphere. The Martian radius, about the half of the Earth's radius, would be one of the important factors to cause more effective $\bar{\zeta in the Martian atmosphere than that in the Earth's atmosphere.

Affiliated with

Also associated with

No associations

Rating

Vertical and latitudinal structure of the migrating diurnal tide in the Martian atmosphere: Numerical investigations does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Vertical and latitudinal structure of the migrating diurnal tide in the Martian atmosphere: Numerical investigations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vertical and latitudinal structure of the migrating diurnal tide in the Martian atmosphere: Numerical investigations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1212366