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Data

The Brewer daily total ozone measurements from 1992 up to 1999 are analysed to study the temporal behaviour at Rome and Ispra. The Dobson total ozone data are derived from the monthly long time series of Vigna di Valle (50km north of Rome) for the years 1958-1999 and Arosa (170km north-west of Ispra, Swiss Alps) for the time period 1927-1999. The Dobson data are extracted from the World Ozone and Ultraviolet Radiation Data Centre (WOUDC).