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Planetary waves in the total ozone at the southern latitude of 65° S arestudied to obtain the main characteristics of the zonal wave numbers 1–5. TheTOMS total ozone data were used to analyze the amplitude and periodicityvariations of the five spectral components during August-December of1979–2003. A presence of the shorter period of waves 1–3 in 1996 (7 days) incomparison with 2002 (8–12 days) is revealed which can be attributed to thedistinction in conditions of typical and anomalously weak stratosphericpolar vortex, probably, a strong and weak mean zonal wind. The interannualvariations of the monthly and 5-month mean amplitudes of the zonal wavenumbers 1–5 are described. Wave 1 has the largest amplitude in October(up to 139 DU in 2000) and increasing amplitude trend (15 DU/decade forOctober 1979–2003). The 5-month mean amplitudes averaged over 1979–2003 are53.6, 29.9, 15.5, 10.5, and 7.8 DU for the wave number sequence 1, 2, 3, 4and 5, respectively. For the stationary components the amplitudes are 38.3,4.8, 1.8, 1.2, 0.7 DU, respectively. Thus, the stationary component of wave 1and the traveling one of waves 2–5 are predominant. The tendencies in along-term change in the wave number amplitude can be explained by taking intoaccount the degree of wave deformation of the stratospheric polar vortexedge, net meridional displacements of the lower stratosphere air, and thedifference between the total ozone loss and negative trends in the polar andmid-latitude regions.<p><b>Keywords.</b> General circulation – Middle atmosphere dynamics– Waves and tide

Zonal wave numbers 1-5 in planetary waves from the TOMS total ozone at 65° S