Abdel Wahab, M., El-Metwally, M., Hassan, R., Lefèvre, M., Oumbe, A., and Wald, L.: Assessing surface solar irradiance in Northern Africa desert climate and its long-term variations from Meteosat images, Int. J. Remote Sens., 31, 261–280, 2009.

Gueymard, C. A. and Thevenard, D.: Monthly average clear-sky broadband irradiance database for worldwide solar heat gain and building cooling load calculations, Sol. Energy, 83, 1998–2018, 2009.

Kato, S., Ackerman, T., Mather, J., and Clothiaux, E.: The k-distribution method and correlated-k approximation for shortwave radiative transfer model, J. Quant. Spectrosc. Ra., 62, 109–121, 1999.

Mueller, R. W., Matsoukas, C., Gratzki, A., Behr, H. D., and Hollmann, R.: The CM-SAF operational scheme for the satellite based retrieval of solar surface irradiance – A LUT based eigenvector hybrid approach, Remote Sens. Environ., 113, 1012–1024, 2009.

Oumbe, A. and Wald, L.: A parameterisation of vertical profile of solar irradiance for correcting solar fluxes for changes in terrain elevation, in: Earth Observation and Water Cycle Science Towards a Water Cycle Multi-mission Observation Strategy, 18–20 November at ESRIN, Frascati, Italy, 2009.