Observation of transient waves in the Southern Hemisphere

Details Observation of transient waves in the Southern Hemisphere Observation of transient waves in the Southern Hemisphere

Feb 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983ipespreptq....d&link_type=abstract

M.S. Thesis Instituto de Pesquisas Espaciais, Sao Jose dos Campos (Brazil).

Computer Science

Mass Flow Rate, Meridional Flow, Planetary Waves, Rossby Regimes, Transient Pressures, Wind Direction, Annual Variations, Atmospheric Circulation, Wind (Meteorology)

Scientific paper

Intermediate range transient waves were studied. Spatial correlations of the meridional wind component show that the waves always propagate eastward. At 250 mb, the waves have a zonal wavelength, at middle latitudes, of 4000 km in winter and of 4600 km in summer. A cross spectrum analysis was performed. Meridional phase velocities are Northwards, which, combined with eastward phase velocities imply a NW-SE tilt to the trough and ridge axes. Group velocities, estimated from Hovmoller diagrams, compare well with those computed through Rossby's theory.

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