Abstract
Long-term record of global distribution of ozone during 1979 to 2001, from Total Ozone Mapping Spectrometer (TOMS), over a tropical urban environment has been analyzed and compared with ground measurements. Increase in atmospheric UV-absorbing aerosol loading has been observed after 1991. TOMS columnar ozone during 1979 to 2001 suggested a clear Gaussian pattern of minimum concentration in winter months and maximum in summer months. TOMS ozone showed good correlation with the ground measured columnar ozone during winter months and negative correlation with Sunburning Ultraviolet (SUV) (280–370 nm), UVA and aerosol optical depth (AOD).
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