COMPARISON BETWEEN MODELS AND MEASUREMENTS OF DIRECT AND DIFFUSE UV ERYTHEMAL IRRADIANCE UNDER CLEAR SKY CONDITIONS―ANALYSIS OF THE ENVIRONMENTAL IMPACTS ON THE MEASUREMENTS

摘要

Broadband erythemal UV global, direct and diffuse irradiance measurements have been compared with two different models. The input parameters of the models, including optical, topographic and instrumental factors, are analyzed in terms of their relative contribution and of the uncertainty they generate.