@Article{MartinsMantRüth:2022:EvPeRa,
               author = "Martins, G. L. and Mantelli Neto, Sylvio Luiz and R{\"u}ther, 
                         R.",
          affiliation = "{Universidade Federal de Santa Catarina (UFSC)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Universidade Federal 
                         de Santa Catarina (UFSC)}",
                title = "Evaluating the performance of radiometers for solar overirradiance 
                         events",
              journal = "Solar Energy",
                 year = "2022",
               volume = "231",
                pages = "47--56",
                month = "Jan.",
             keywords = "Cloud enhancement, Overirradiance, Solar radiometers, Solar 
                         resource assessment.",
             abstract = "This paper describes a methodology used to evaluate pyranometers 
                         and reference cell performance in relation to solar overirradiance 
                         (OIR) events. By definition, these events are characterized when 
                         global horizontal irradiance (GHI) exceeds the extraterrestrial 
                         horizontal irradiance (ETH) due to cloud enhancement (CE) effects 
                         (e.g. scattering, reflection, cloud lense augmentation). 
                         Evaluation metrics are proposed to assess relevant features of the 
                         events such as uncertainty, event identification, and response 
                         time. The metrics were validated with high standard radiometers 
                         deployed at the Solar Energy Research Laboratory Fotovoltaica/UFSC 
                         in Florian{\'o}polis, Brazil. The results were checked against 
                         solar radiometers' specifications, and sensors were analyzed 
                         according to their performances. An ISO outdoor calibration, as 
                         well as a system uncertainty analysis and data response time 
                         evaluation, were performed, to assure results reliability. In 
                         addition, two extreme overirradiance (EOIR) events were evaluated 
                         separately, and seasonal occurrence of the energy fraction of 
                         overirradiance events was assessed and discussed.",
                  doi = "10.1016/j.solener.2021.11.050",
                  url = "http://dx.doi.org/10.1016/j.solener.2021.11.050",
                 issn = "0038-092X",
             language = "en",
           targetfile = "Martins_evaluating_2022.pdf",
        urlaccessdate = "29 jun. 2024"
}