The approach of UV resource estimating is described in the papers:
N. Chubarova, Ye. Zhdanova Ultraviolet resources over Northern Eurasia, Journal of Photochemistry and Photobiology B: Biology, Elsevier BV (Netherlands), V. 127, p. 38-51, 2013. N. Chubarova, Y. Zhdanova, Y. Nezval A new parameterization of the UV irradiance altitude dependence for clear-sky conditions and its application in the on-line UV tool over Northern Eurasia, Atmospheric Chemistry and Physics. 2016. Vol. 16. P. 11867-11881.
This tool is under development and verification. If you have any questions or comments, please contact us.
The work was partially supported by RFBR grants № 12-05-00877 and 15-05-03612.