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Younes, Serge; Muneer, Tariq. Solar horizontal irradiance: data quality control and modeling. 2005 SOLAR WORLD CONGRESS, 2005, Orlando, Flórida.
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Dados do autor na base InfoHab:
Número de Trabalhos: 2 (Nenhum com arquivo PDF disponível)
Citações: Nenhuma citação encontrada
Índice h: Indice h não calculado  
Co-autores: Nenhum co-autor encontrado

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Abstract

Long-term solar irradiance measurements are available from a number of meteorological measuring stations around the globe. Close examination of the solar irradiance data reveals problems, often for extended periods of time. To reduce the errors in the solar radiation datasets, a semi-automatic quality control algorithm is proposed. It is based on physical and a statistical test. The quality control envelope is a statistical procedure in a diffuse ratio to clearness index construct, based on standard deviation of the weighted mean of the diffuse ratio. Due to the fact that the number of surface weather stations recording solar radiation is very small compared to the number of meteorological stations that record cloud cover and other synoptic information, researchers have produced solar radiation models that are based on synoptic information. The meteorological radiation model (MRM) was developed by Muneer et al. as a simple broadband irradiance estimation model based on sunshine fraction, wet and dry bulb temperature and atmospheric pressure. Improvements were made to the original model by incorporating the suns hine information in the MRMregression. The improved meteorological radiation model (IMRM) was found to be more accurate than its predecessor in estimating, global and diffuse horizontal irradiance. When only cloud information is available, radiation estimation models based on cloud cover, CRM, can be used. Three CRMs were compared to a newly proposed model. It was found that models with locally fitted coefficients gave a more accurate estimation of the solar radiation than CRMs with generalized coefficients. It was found that the newly proposed model yielded 30% better results compared with the other models.
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