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International Journal of Solar Energy
Article . 1987 . Peer-reviewed
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Estimating Incident Solar Radiation at the Surface from Images of the Earth Transmitted by Geostationary Satellites: the Heliosat Project

Authors: Diabaté, Lamissa; Demarcq, Hervé; Michaud-Regas, Nathalie; Wald, Lucien;

Estimating Incident Solar Radiation at the Surface from Images of the Earth Transmitted by Geostationary Satellites: the Heliosat Project

Abstract

The goals of the Heliosat project of Ecole Nationale Superieure des Mines de Paris are: (i) to design a system for the estimation of incident solar radiation at ground level from images of the Earth acquired by geostationnary satellites, (ii) to produce detailed maps of the spatial distribution of the global radiation, and (iii) to improve the system depending upon the results and progress in science. Among the numerous methods already developed, one of them has been selected for its accuracy as well as its simplicity. It has been tested during 30 consecutive months starting from January 1983. Operations were performed in a completely automatic, unmanned fashion and trades-off between routine and accuracy have been adopted. Areas under concern were Europe and Central-Western Africa (1984 only). This paper presents the results of the tests conducted during 1983. Measurements of sixteen pyranometers were compared three times a day to the estimates of the selected method. Different comparisons are presented. The errors in the reconstruction of both the instantaneous hourly global radiation Gh and the monthly average of Gh is less than 0.06 kWh/m2. When compared to other methods, Heliosat ranks as one of the most accurate.

Country
France
Keywords

[SPI.SIGNAL] Engineering Sciences/Signal and Image processing, [ SDU.OCEAN ] Sciences of the Universe [physics]/Ocean, Atmosphere, [ INFO.INFO-TS ] Computer Science [cs]/Signal and Image Processing, 550, anisotropy, [ SPI.SIGNAL ] Engineering Sciences [physics]/Signal and Image processing, 333, [INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing, [SDU.OCEAN] Sciences of the Universe/Ocean, Atmosphere, [SDE.ES]Environmental Sciences/Environment and Society, [SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere, [SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere, method of Cano, [SDE.ES]Environmental Sciences/Environmental and Society, [INFO.INFO-TS] Computer Science/Signal and Image Processing, [SDE.ES] Environmental Sciences/Environmental and Society, [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing, [ SDE.ES ] Environmental Sciences/Environmental and Society, albedo

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
54
Top 10%
Top 1%
Average