Volume 27 Issue 1
Jan.  2007
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ZHANG Xiuchuan, YI Fan. MF Radar Observations of Mesospheric Tides Over Wuhan[J]. Chinese Journal of Space Science, 2007, 27(1): 29-34. doi: 10.11728/cjss2007.01.029
Citation: ZHANG Xiuchuan, YI Fan. MF Radar Observations of Mesospheric Tides Over Wuhan[J]. Chinese Journal of Space Science, 2007, 27(1): 29-34. doi: 10.11728/cjss2007.01.029

MF Radar Observations of Mesospheric Tides Over Wuhan

doi: 10.11728/cjss2007.01.029
  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2007-01-15
  • Data obtained from the MF radar observations in Wuhan have been used to analyzing the tides' structure and variability at the mesospheric altitudes. A dynamic power spectra of the horizontal wind with Lomb-Scargle periodogram illustrates that the diurnal tide is the dominant tidal disturbance and persists almost uninterruptedly in time. The mean amplitudes of the diurnal tidal disturbances show an altitude trend of increasing firstly and decreasing later. The corresponding frequency of the tidal spectral peaks often deviates from fixed one. Hodographs of the diurnal tidal wind vector with respect to heights and time indicates that the phase of the meridional component always leads that of the zonal component and the diurnal tides are upward propagating wave with downward phase progression. The meridional and zonal vertical phase velocities are 1.10 and 1.15 km/h.

     

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