# Solar Ultraviolet Irradiance Characterization under All Sky Conditions in Burgos, Spain
## 4 Conclusions
The value of the ratio increased in the categories which represented cloudier skies. During this exhaustive analysis, the ratio did not exhibit any seasonal, monthly, or daily dependency, other than the predominance of one type of sky over another, in the period being analyzed. Slight differences in the value of the ratio (mean and standard deviation) were detected depending on the sky classification criteria that was being used; the main difference between the values was the number of data that were classified as outliers. The fact that there was a higher number of outliers that corresponded with the CIE clear skies categories could be explained by the presence of aerosols or atmospheric turbidity; these factors are characteristic of clear sky types 13, 14, and 15, with a FOC of 19%, 3.8%, and 1.6% respectively. The main conclusion, for practical purposes, is that the proportional relation between _GHUV_ and _GHI_ can be used for modelling _GHUV_. S.G.-R.: methodology, software, formal analysis, investigation, visualization. I.G. : methodology, software, formal analysis, investigation, original draft preparation, writing-review and editing, visualization; A.G.-R.: methodology, software, visualization; M.D.-M.: conceptualization, validation, original draft preparation, supervision, project administration; C.A.-T.: conceptualization, writing--review and editing; supervision, funding acquisition. All authors have read and agreed to the published version of the manuscript. This research was funded by the Spanish Ministry of Science and Innovation, grant numbers RTI2018-098900-B-I00 and TED2021-131563B-I00, and Junta de Castilla y Leon, grant numbers INVESTUN/19/BU/0004 and INVESTUN/22/BU/0001. Not applicable. This research was funded by the Spanish Ministry of Science and Innovation, grant numbers RTI2018-098900-B-I00 and TED2021-131563B-I00, and Junta de Castilla y Leon, grant numbers INVESTUN/19/BU/0004 and INVESTUN/22/BU/0001. Not applicable. * [PERSON] (2020) [PERSON] [PERSON] Latitude impact on pandemic SARS-CoV-2 2020 outbreaks and possible utility of UV indexes in predictions of regional daily infections and deaths. _J. Photochem. Photobiol._**2022**, _10_, 100108. [CrossRef]
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