ABSTRACT The solar UV radiation has prominent impacts on human life, animals and plants with positive and negative effects. Atmospheric ozone, which is formed from the photodissociation of molecular oxygen mainly in the stratosphere, absorbs a significant factor of solar UV radiation. The ozone in the stratosphere acts as a protective layer to prevent UV radiation reaching on the surface of the earth. Hence the intensity of solar UV radiation on the surface has a strong dependence on the Total Ozone Column (TOC). The UV irradiance on earth surface depends on geometrical factors such as solar zenith angle, altitude, latitude and other atmospheric parameters as well. This is an attempt to study the variation of solar UV flux at its four discrete wavelengths ranging from 305 - 380 nm at Kannur, which is located in the north of Kerala in India. Hence such a correlation of TOC and UV irradiance is relevant to realize the radiation budget at this location (12.3N, 75.4E) using AURA OMI data. This paper reveals the correlation of day to day, month to month temporal variation of total ozone column (in DU) and UV irradiance (w/m2). From the analysis, the anti-correlation between UV and TOC is revealed and its impact in the solar radiation budget is established.
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nullN. T., S. Joseph, P. K. M. and M. Kumar, "Correlative Study between UV Irradiance and TOC Using AURA OMI at Kannur (12.3N, 75.4E)," Atmospheric and Climate Sciences, Vol. 1 No. 2, 2011, pp. 55-60. doi: 10.4236/acs.2011.12006.
 Crutzen, P. J., The influence of nitrogen oxides on atmosphere ozone content. Q. J. R. Meteorol. Soc., 1970, 96, 320-325.
 Stolarski, R. S. and Cicerone, R. J., Stratospheric chlorine: A possible sink for ozone. Can. J. Chem., 1974, 52, 1610-1615.
 de Gruijl, F.R., van der Leun, J.C., 2000. Environment and health: 3-Ozone depletion and ultraviolet radiation. CMAJ 163 (7), 851-855.
 Heisler, G.M., Grant, R.H., 2000. Ultraviolet radiation in urban ecosystems with consideration of effects on human health. Urban Ecosyst. 4, 193-229.
 McKenzie, R.I., Bjorn, L.O., Bais, A., Ilyasd, M., 2003. Changes in biologically active ultra violet radiation reaching the Earth’s surface. Photochem. Photobiol. Sci. 2,5-15.
 Jacovides, C.P, Tymvios , F.S, Asimakopoulos D.N, Kaltsounides N.A. Theoharatos G.A. Tsitouri M , Solar global UVB (280 - 315 nm) and UVA (315 - 380 nm) radiant fluxes and their relationships with broadband global radiant flux at an eastern Mediterranean site, Agricultural and Forest Meteorology 149 (2009) 1188-1200
 Molina, M. J. and Rowland, F. S., Stratospheric sink for chlorofluromethanes: Chlorine catalyzed destruction of ozone. Nature, 1974, 249, 810-814.
 Setlow, R.B., 1974. The wavelengths in sunlight effective in producing skin cancer: a theoretical analysis. Nat. Acad. Sci. U.S.A. 71 (9), 3363-3366.
 Webb, A.R., Steven, M.D., 1986. Daily totals of solar UVB radiation estimated from routine meteorological measurements. J. Climatol. 6, 405-411.
 Day, T.A., Ruhland, C.T., Grobe, C.W., Xiong, F., 1999. Growth and reproduction of Antarctic vascular plants in response to warming and UV radiation reductions in the field. Oecologia 119, 24-35
 McKenzie, R. L., Bjorn, L. O. , Bais A. and Ilyas, M. Changes in Biologically active ultraviolet radiation reaching the Earth’s surface, Photochem. Photobiol. Sci., (2003), this issue (DOI:10.1039/b21155c).
 Parisi, A.V., Turnbull, D.J., Turner, J., 2008. Comparison of biologically effective spectra for erythema and pre-vitamin D3 synthesis. Int. J. Biometeorol., doi:10.1007/s00484-008-0186-z.
 Turnbull, D.J., Paris, A.V., Kimlin, M.G., 2005. Vitamin D effective ultraviolet wavelengths due to scattering in shade. J. Steroid Biochem. Mol. Biol. 96, 431-436.
 Ferman, J. C., Gardner, B. G. and Shanklin, J. D., Large loses of total ozone in Antarctica reveal seasonal ClOx/NOx interactions. Nature, 1985, 315, 207-210.
 Madronich SRL, Mickenzie LO, Bjorn and Calwell MM, 1998.Changes biologically active ultravilot radiation reaching the Earths surface.J. Photochem. Photobiol., 46,5-19.
 N.N Purkait etal –Effective UV irradiance and total ozone column – A case study using data from TOMS and Micro top sun photometer.J. Radio& Space Physics 38(2009) pp 86-97
 Krishna Prasad NV and Niranjan K, Solar UV-B Irradiance at a tropical Indian station Visakhapatnam (17.70? North, 83.30? East) - a Relation with TOMS Ozone, TAO, Vol. 16, No. 1, 215-229, March 2005.