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A consequence of the wave-number rich tidal activity that has been observed in the southern polar MLT is that the horizontal flux of horizontal momentum (u'v') is likely to be non-zero. This quantity is affected by the phase angle between the zonal and meridional wind perturbations.
Observations and modelling described by Becker and Fritts [Ann Geophys, 24, 1175-1188, 2006] suggests that wintertime planetary wave activity, and the gravity-wave filtering … associated with it…
obtained from Davis station in Antarctica (69S, 78E) provide an opportunity to study … interhemispheric coupling. Observations and modelling described by Becker and Fritts (Ann. Geophys, 24, 1175-1188, 2006) suggests that wintertime planetary wave activity…
The 15-year set of radar observations of Mesosphere and Lower Thermosphere (MLT) winds obtained from Davis station in Antarctica (69S, 78E) provide an opportunity for studies of interhemispheric coupling. Observations and modelling described by Becker and Fritts [2006]…
The 15-year set of radar observations of Mesosphere and Lower Thermosphere (MLT) winds obtained from Davis station in Antarctica (69S, 78E) provide an opportunity for studies of interhemispheric coupling. Observations and modelling described by Becker and Fritts [2006]…
Source regions for the westward propagating zonal … wavenumber one and three components of the semidiurnal … tide observed in the summer mesosphere and lower … thermosphere over Antarctica are identified by correlating … local tidal variations with global planetary wave one activity … in the…
Planetary waves with periods between two and four days in the middle atmosphere over … Antarctica are characterized using one year of data from the medium-frequency spaced … antenna (MFSA) radars at Scott Base, Rothera, and Davis. In order to investigate the origin … of the observed waves…
A function that approximates atmospheric tidal behavior in the polar regions is … described.
The international cooperation that makes Antarctica a continent for science has enabled … observations of the Antarctic middle atmosphere that are not possible anywhere else on … Earth. Atmospheric radars operated by Australia (Davis), Japan (Syowa), the UK and the … USA (Rothera)…
The atmospheric tides are a dominant and persistent feature of the mesosphere and lowerthermosphere … region of the atmosphere which spans from 80 to 120km above the Earth’s … surface. The tides…