On the clear sky model of the ESRA - European Solar Radiation Atlas with respect to the Heliosat method - Archive ouverte HAL Access content directly
Journal Articles Solar Energy Year : 2000

On the clear sky model of the ESRA - European Solar Radiation Atlas with respect to the Heliosat method

(1) , (1) , (2)
1
2

Abstract

This paper presents a clear-sky model, which has been developed in the framework of the new digital European Solar Radiation Atlas (ESRA). This ESRA model is described and analysed with the main objective of being used to estimate solar radiation at ground level from satellite images with the Heliosat method. Therefore it is compared to clear-sky models that have already been used in the Heliosat method. The diffuse clear-sky irradiation estimated by this ESRA model and by other models has been also checked against ground measurements, for different ranges of the Linke turbidity factor and solar elevation. The results show that the ESRA model is the best one with respect to robustness and accuracy. The r.m.s. error in the estimation of the hourly diffuse irradiation ranges from 11 Wh.m-2 to 35 Wh.m-2 for diffuse irradiation up to 250 Wh.m-2. The good results obtained with such a model are due to the fact that it takes into account the Linke turbidity factor and the elevation of the site, two factors that influence the incoming solar radiation. In return, it implies the knowledge of these factors at each pixel of the satellite image for the application of the Heliosat method.
Fichier principal
Vignette du fichier
2000_SE_Rigollier.pdf (179.27 Ko) Télécharger le fichier
Origin : Files produced by the author(s)
Loading...

Dates and versions

hal-00361373 , version 1 (13-02-2009)

Identifiers

  • HAL Id : hal-00361373 , version 1

Cite

Christelle Rigollier, Olivier Bauer, Lucien Wald. On the clear sky model of the ESRA - European Solar Radiation Atlas with respect to the Heliosat method. Solar Energy, 2000, 68 (1), pp.33-48. ⟨hal-00361373⟩
477 View
3122 Download

Share

Gmail Facebook Twitter LinkedIn More