Articles | Volume 15, issue 13
https://doi.org/10.5194/amt-15-4125-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-15-4125-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
15 Jul 2022
Research article |
| 15 Jul 2022
| 15 Jul 2022
Comparison of global UV spectral irradiance measurements between a BTS CCD-array and a Brewer spectroradiometer
Carmen González
CORRESPONDING AUTHOR
Área de Investigación e Instrumentación Atmosférica,
Instituto Nacional de Técnica Aeroespacial (INTA), El Arenosillo,
Huelva, Spain
Departamento de Física, Instituto del Agua, Cambio Climático y Sostenibilidad, Facultad de Ciencias, Universidad de Extremadura, Badajoz, Spain
José M. Vilaplana
Área de Investigación e Instrumentación Atmosférica,
Instituto Nacional de Técnica Aeroespacial (INTA), El Arenosillo,
Huelva, Spain
José A. Bogeat
Centro de Experimentación de El Arenosillo (CEDEA), Instituto
Nacional de Técnica Aeroespacial (INTA), El Arenosillo, Huelva, Spain
Antonio Serrano
Departamento de Física, Instituto del Agua, Cambio Climático y Sostenibilidad, Facultad de Ciencias, Universidad de Extremadura, Badajoz, Spain
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Brewer spectroradiometers are widely used instruments that have been monitoring global solar ultraviolet (UV) irradiance since the 1990s, playing a key role in solar UV research. The uncertainties of these measurements are rarely evaluated even though they are essential to determine the quality of these measurements. In this work, the uncertainty of ten Brewers is estimated using the Monte Carlo method, showing that Brewer’s relative uncertainty is less than 5 % for wavelengths above 300 nm.
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Brewer spectroradiometers are widely used instruments that have been monitoring global solar ultraviolet (UV) irradiance since the 1990s, playing a key role in solar UV research. The uncertainties of these measurements are rarely evaluated even though they are essential to determine the quality of these measurements. In this work, the uncertainty of ten Brewers is estimated using the Monte Carlo method, showing that Brewer’s relative uncertainty is less than 5 % for wavelengths above 300 nm.
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Large-scale retrievals of the ultraviolet index (UVI) in real time by exploiting the modern Earth observation data and techniques are capable of forming operational early warning systems that raise awareness among citizens of the health implications of high UVI doses. In this direction a novel UVI operating system, the so-called UVIOS, was introduced for massive outputs, while its performance was tested against ground-based measurements revealing a dependence on the input quality and resolution.
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Short summary
Monitoring ultraviolet (UV) radiation is important since it can have harmful effects on the biosphere. Array spectroradiometers are increasingly used to measure UV as they are more versatile than scanning spectroradiometers. In this study, the long-term performance of the BTS-2048-UV-S-WP array spectroradiometer was assessed. The results show that the BTS can reliably measure both the UV index and UV radiation in the 300–360 nm range. Moreover, the BTS was stable and showed no seasonal behavior.
Monitoring ultraviolet (UV) radiation is important since it can have harmful effects on the...
