Estimation of Solar Ultraviolet (UV-B) Radiation Using Aura Satellite Ozone Monitoring Instrument (OMI) in Iran

Document Type : Original Article


University of Zanjan, Faculty of Humanities, Department of Geography


Part of the sun's rays are made up of ultraviolet (UV-B) rays, which have short wavelengths and high energy and cause a variety of side effects, including sunburn, skin allergies and skin cancer. The purpose of this study is to estimate the spatiotemporal of solar ultraviolet (UV-B) radiation using the aura ozone-monitoring tool in Iran. For this purpose, from the daily calibrated product of level 3 (OMUVBd-L3), the solar ultraviolet (UV-B) index of OMI sensor with spatial resolution of 0.25 × 0.25 arc degrees for the time series 2005 to 2020 used. The data used, after processing and applying the necessary algorithms, were converted into network data and information tables, and the required outputs were prepared on a long-term, seasonal and monthly scale. The results showed that the amount of ultraviolet (UV-B) radiation entering the earth's surface in the warm period of the year and low geographical offerings were higher and the risk of injury Increases the plasticity of these rays in these areas. In contrast, the areas located in the north of the 36 ° orbit receive less ultraviolet radiation. In terms of seasonal average, the highest / lowest UV-B radiation index was related to the summer / winter seasons. Among the studied months, June, July and August had the highest and January, December and November had the lowest UV-B radiation. In addition, although the amount of UV-B radiation has fluctuated during the time series, but in general, no noticeable changes in its process have been observed.


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