Solar cycle and global long term variations of stratospheric ozone

Abstract We analyze in this work four available sets of stratospheric ozone measurements obtained by ground UVB sun spectrophotometer Dobson type in the period from 1957 until 1997. By the analysis of these sets of ozone data and satellite observations we can see a decreasing intensity at all these latitudes (Belsk, Murmansk, Tbilisi and C. Paulista), given a global mean rate ∼ 10% during the last three solar cycles. We saw also correlations between ozone variations and sunspot number.