Articles | Volume 13
02 Feb 2016
 | 02 Feb 2016

On the effective solar zenith and azimuth angles to use with measurements of hourly irradiation

P. Blanc and L. Wald


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Latest update: 18 May 2024
Short summary
Time series of hourly measurements or modelled values of surface solar irradiation are increasingly available. Currently, no solar zenith and azimuth angles are associated to each measurement whereas such angles are necessary for handling the measured or modelled irradiations. A method is proposed to assess such angles with a great accuracy. It makes use of two modelled time-series that can be computed using the web site for any site in the world.