Fourier analysis of daily solar radiation data in Spain
The aim of this work has been to obtain a Typical Annual Time Function by the application of a calculation procedure based on a Fourier analysis to solar radiation data of 21 stations in Spain. This function allows us to estimate the most probable value of the horizontal daily global solar radiation...
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Published in | Solar energy Vol. 41; no. 4; pp. 327 - 333 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Oxford
Elsevier Ltd
1988
Elsevier |
Subjects | |
Online Access | Get full text |
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Summary: | The aim of this work has been to obtain a Typical Annual Time Function by the application of a calculation procedure based on a Fourier analysis to solar radiation data of 21 stations in Spain. This function allows us to estimate the most probable value of the horizontal daily global solar radiation for every day of the year in a certain geographical point. It is confirmed that the first harmonic presents an important percentage of the total variance, located between 61 and 77% and that none of the other harmonics contributes in a significant form to explain the total variance.
El objeto de este trabajo ha sido la obtención de una Función Temporal Anual Tipo, mediante la aplicación de un procedimiento de cálculo basado en un Análisis de Fourier, a los datos de 21 estaciones de medida de la radiación solar en España. Dicha función permite estimar el valor más probable de la radiación solar global diaria sobre una superficie horizontal, para cualquier día del año en una localización geográfica determinada. Comprobándose que el primer armónico representa un porcentaje importante de la varianza total, situándose entre el 61 y el 77%; y que ninguno de los demás armónicos contribuye de forma significativa a explicar la varianza total. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0038-092X 1471-1257 |
DOI: | 10.1016/0038-092X(88)90028-X |