Articles | Volume 13
02 Mar 2016
 | 02 Mar 2016

Validation of the McClear clear-sky model in desert conditions with three stations in Israel

Mireille Lefèvre and Lucien Wald

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Cited articles

Benedetti, A., Morcrette, J.-J., Boucher, O., Dethof, A., Engelen, R. J., Fisher, M., Flentje, H., Huneeus, N., Jones, L., Kaiser, J. W., Kinne, S., Manglold, A., Razinger, M., Simmons, A. J., and Suttie, M.: Aerosol analysis and forecast in the European Centre for Medium-Range Weather Forecasts Integrated Forecast System: 2. Data assimilation, J. Geophys. Res., 114, D13205,, 2009.
Blanc, P. and Wald, L.: The SG2 algorithm for a fast and accurate computation of the position of the Sun, Sol. Energy, 86, 3072–3083,, 2012.
Eissa, Y., Korany, M., Aoun, Y., Boraiy, M., Abdel Wahab, M., Alfaro, S., Blanc, P., El-Metwally, M., Ghedira, H., and Wald, L.: Validation of the surface downwelling solar irradiance estimates of the HelioClim-3 database in Egypt, Remote Sensing, 7, 9269–9291,, 2015a.
Eissa, Y., Munawwar, S., Oumbe, A., Blanc, P., Ghedira, H., Wald, L., Bru, H., and Goffe, D.: Validating surface downwelling solar irradiances estimated by the McClear model under cloud-free skies in the United Arab Emirates, Sol. Energy, 114, 17–31,, 2015b.
GCOS – Global Climate Observing System Essential Climate Variables: available at:, last access: 20 February 2016.
Short summary
The new CAMS (Copernicus Atmosphere Monitoring Service) McClear service is a practical easy-to-use tool to estimate the solar direct and global irradiances received at ground level in cloud-free conditions at any place any time. This article presents validation against 1 min measurements made at three very close stations in Israel in desert conditions. The good results demonstrate the accuracy of McClear and its ability to capture the temporal and spatial variability of the irradiance field.