Influence of the space factor and oscillation in the Earth atmosphere on the total ozone content: Altitude and latitude variations
Abstract
Paper is devoted to detailed analysis and estimating an influence of the space factor and oscillation in the Earth atmosphere on the total ozone content To reveal the reasons for the low-frequency variations of total ozone at the Southern mid-latitudes and tropics the joint wavelet analysis of the Antarctic Oscillation Index and total ozone is carried out by using the non-decimated wavelet transform Loboda et al 2004 2005 Since the new reanalysis data was appeared Kistler et al 2001 an opportunity offered for investigating the dynamics of atmospheric processes in the Southern Hemisphere as a whole and over the Antarctic in particular However most reliable data to the south of 50 S exists since the 1979 only when satellites were used to obtain various meteorological data In spite of the fact that the NCEP-NCAR reanalysis covers the period starting with the 1948 the usefulness of Antarctic analysis in the NCEP-NCAR reanalysis before the satellite era is very questioned Marshall 2002 The advantage of using wavelet decomposition is to isolate short- and long-term components while retaining the flexibility for variability in the cycle length Also in addition to the revealed periodicities this technique allows to observe the dynamic relationship between the variations of the AAO index and total ozone at the different latitudes of the Southern Hemisphere Main findings can be shortly stated as following The analysis shows that the cycles of the Antarctic Oscillation with periods of 5 5 3-4 2-3 and 1 year
- Publication:
-
36th COSPAR Scientific Assembly
- Pub Date:
- 2006
- Bibcode:
- 2006cosp...36.3488L