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The HelioClim Project: Surface Solar Irradiance Data for Climate Applications
Center for Energy and Processes, MINES ParisTech, BP 207, 06904 Sophia Antipolis cedex, France
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Received: 20 December 2010; in revised form: 9 February 2011 / Accepted: 10 February 2011 / Published: 17 February 2011
Abstract: Meteosat satellite images are processed to yield values of the incoming surface solar irradiance (SSI), one of the Essential Climate Variables. Two HelioClim databases, HC-1 and HC-3, were constructed covering Europe, Africa and the Atlantic Ocean, and contain daily and monthly means of SSI. The HC-1 database spans from 1985 to 2005; HC‑3 began in 2004 and is updated daily. Their quality and limitations in retrieving monthly means of SSI have been studied by a comparison between eleven stations offering long time-series of measurements. A good agreement was observed for each site: bias was less than 10 W/m² in absolute value (5% in relative value) for HC-3. HC-1 offers a similar quality, though it underestimates the SSI for latitudes greater than 45° and less than −45°. Time-series running from 1985 to date can be created by concatenating the HC-1 and HC-3 values and could help in assessing SSI and its changes.
Keywords: solar radiation; solar irradiance; solar exposure; climate; Africa; Europe; Atlantic Ocean; remote sensing; long-term analysis; Meteosat
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Cite This Article
MDPI and ACS Style
Blanc, P.; Gschwind, B.; Lefèvre, M.; Wald, L. The HelioClim Project: Surface Solar Irradiance Data for Climate Applications. Remote Sens. 2011, 3, 343-361.
Blanc P, Gschwind B, Lefèvre M, Wald L. The HelioClim Project: Surface Solar Irradiance Data for Climate Applications. Remote Sensing. 2011; 3(2):343-361.
Blanc, Philippe; Gschwind, Benoît; Lefèvre, Mireille; Wald, Lucien. 2011. "The HelioClim Project: Surface Solar Irradiance Data for Climate Applications." Remote Sens. 3, no. 2: 343-361.