12 October 2006 A laboratory intercomparison of broadband radiometers used for solar erythemal irradiance measurements
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Abstract
The recent increase in the ultraviolet radiation that reaches the ground, mainly due to the decrease in stratospheric ozone, demands high quality measurements over the world. For this goal the use of broadband instruments to measure erythemal-weighted irradiance is widely extended due to their low cost and easy maintenance and use. Nevertheless considerable efforts in quality assurance and quality control (QA/QC) are requiredin order to obtain a homogenised eryhtemal radiation from different regional and national networks over whole Europe. The laboratories that provide the calibration to these networks must guarantee reliable methodologies. For this purpose, the WG4 (Quality Control) within the COST-726 European action (Long-term changes and climatology of the UV radiation over Europe) is promoting the inter-laboratory intercomparison and the adoption of common procedures. In this work the procedures for calibrating broadband radiometers adopted by the laboratory "El Arenosillo" in Huelva, Spain, are presented. The methodology used at INTA has been intercompared with the UV laboratory at PMOD/WRC (World Radiaton Centre) in Davos (Switzerland) and results are presented in this document.
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J. M. Vilaplana, J. Gröbner, A. Serrano, M. Antón, M. L. Cancillo, "A laboratory intercomparison of broadband radiometers used for solar erythemal irradiance measurements", Proc. SPIE 6362, Remote Sensing of Clouds and the Atmosphere XI, 63620Y (12 October 2006); doi: 10.1117/12.689865; https://doi.org/10.1117/12.689865
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