A Study of UVER in Santiago, Chile Based on Long-Term In Situ Measurements (Five Years) and Empirical Modelling

Ultraviolet radiation is a highly energetic component of the solar spectrum that needs to be monitored because harmful life on Earth, especially in areas where ozone layer has been depleted, like Chile. This work first address long-term (five-year) behaviour ultraviolet erythemal (UVER) Santiago, Chile (33.5° S, 70.7° W, 500 m) using situ measurements and empirical modelling. Observations indicate alert people risks UVER overexposure, it necessary use, addition currently available UV index (UVI), three more erythema indices: standard doses (SEDs), minimum (MEDs), sun exposure time (tery). The combination UVI, SEDs, MEDs, tery shows individuals with skin types III IV are exposed harmfully high for 46% UVI indicates safe. Empirical models predicted hourly daily values Santiago great accuracy can applied other Chilean urban similar climate. research inspires future advances reconstructing large datasets analyse Central Chile, its trends, changes.