Outliers Detection in a Quality Control Procedure for Measurements of Solar Radiation

Authors

  • Marcus Vinícius Contes Calça Universidade Estadual Paulista "Júlio de Mesquita Filho"
  • Matheus Rodrigues Raniero Universidade Estadual Paulista "Júlio de Mesquita Filho"
  • Domingos Mário Zeca Fernando Universidade Pedagógica de Moçambique
  • Sérgio Augusto Rodrigues Universidade Estadual Paulista "Júlio de Mesquita Filho"
  • Alexandre Dal Pai Universidade Estadual Paulista "Júlio de Mesquita Filho"

Keywords:

Solar Measurement Outlier, Solar Energy, Sky Cover, Statistical Range

Abstract

Global climate changes has popularized investigations of solar activity, essentially through long-term series of solar radiation measurements on land surface. This study presents a procedure for the outliers detection in measurements of global (IG), sky-diffuse (ID) and direct-beam (IB) solar irradiances in horizontal surfaces. Measurements obtained by the Laboratory of Solar Radiometry (LRS) of the School of Agricultural Sciences (São Paulo State University - UNESP) in Botucatu/São Paulo/Brazil were used in the validation of the outlier detection process. The procedure was implemented based on the International Commission on Illumination (CIE) fundamental quality control of solar radiation measurements and statistical ranges according to the different classification of sky cover (KT). The results indicated that the serie of LRS from 2005 to 2010 contained 0.97%, 1.42% and 1.88% of global, sky-diffuse and direct-beam irradiances measurements on horizontal surfaces outliers, respectively, compared to the total measurements of the serie. The procedure for outliers detection in solar radiation measurements should be applied to provide greater security for future investigations.

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Published

2019-12-17

How to Cite

Contes Calça, M. V., Raniero, M. R., Fernando, D. M. Z., Rodrigues, S. A., & Dal Pai, A. (2019). Outliers Detection in a Quality Control Procedure for Measurements of Solar Radiation. IEEE Latin America Transactions, 17(11), 1815–1822. Retrieved from https://latamt.ieeer9.org/index.php/transactions/article/view/1490

Issue

Vol. 17 No. 11 (2019): Ordinary Issue

Section

Articles

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