HR: 15:30h
AN: A23D-07    [Abstracts]
TI: Changes in Ozone and UV Index of Australian Cities (1958-2004)
AU: * Lemus-Deschamps, L
EM: L.Deschamps@bom.gov.au
AF: BMRC, Bureau of Meteorology, PO Box 1289, Melbourne, Melbourne, Vic 3001, Australia
AU: Easson, J
EM: j.easson@bom.gov.au
AF: AWS, Bureau of Meteorology, PO Box 1289, Melbourne, Melbourne, Vic 3001, Australia
AU: Skingfield, P
EM: p.skingfield@bom.gov.au
AF: AWS, Bureau of Meteorology, PO Box 1289, Melbourne, Melbourne, Vic 3001, Australia
AB: Ground-based total ozone data sets are compared with ERA40 and TOMS and then used to estimate the total ozone variations for several Australian cities over the period 1958 to 2004. The data sets are deseasonalized and the differences with the pre-ozone-hole period 1970-1980 are calculated. All data sets show changes in the rate of the total ozone decline during the 80's while the ozone decline during the 90's is fairly constant. Ozone decline may have an important impact in the amount of surface UV radiation, if all other factors remain constant. Consideration of the changes in UV levels is particularly important for this region as Australia has one of the highest rates of skin cancer in the world. UV Index distributions within the period 1958-2004 are calculated using the ground-based total ozone as input to the "single column model version" of the Australian Ozone and UV forecasting system. The UV Index is also compared with the occurrence of non-melanoma skin cancer rate over Australia.
DE: 3305 Climate change and variability (1616, 1635, 3309, 4215, 4513)
DE: 3319 General circulation (1223)
DE: 3362 Stratosphere/troposphere interactions
DE: 3374 Tropical meteorology
SC: Atmospheric Sciences [A]
MN: 2007 Joint Assembly