[01] A. A. Azooz, Department of Physics, College of Science, Mosul University, Mosul, Iraq. [02] N. I. B. Jallo, Department of Physics, College of Science, Baghdad University, Baghdad, Iraq.

A procedure is suggested to calculate the approximate temporal value of the UV index at any geographical location using only frequency integrated UV or total solar irradiance measurements. This eliminates the need for the use of delicate and highly expensive solar UV spectrometers. The procedure introduces a new single continuous parameterization equation for the McKinlay - Diffey Erythema weighing function. Results of calculations are compared with data derived using upper atmosphere satellite UV and Ozone levels measurement for the city of Zarka in Jordon.

UV Index, Solar Radiation, UV Solar Spectrum

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