Solar surface irradiance from new meteorological satellite data

Abstract : This paper presents the first prototype of a new method, for assessing solar surface irradiance, benefiting from advanced products derived from recent Earth Observation missions. This method -called Heliosat-4- is based on the radiative transfer model libRadtran and will provide direct, diffuse components and spectral distribution of solar surface irradiance every 3 km and ¼ h over Europe and Africa. The advantage of the Heliosat-4 method is the simultaneous computation of direct and diffuse irradiances. The outcomes of this prototype of Heliosat-4 method are compared to ground measurements, of direct and global irradiances, made at 4 stations in Europe and Northern Africa. The results show that standard deviation attained by the Heliosat-4 method for global irradiance is fairly similar to that attained by current methods. A significant bias is actually observed and discussed.
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Armel Oumbe, Philippe Blanc, Marion Schroedter Homscheidt, Lucien Wald. Solar surface irradiance from new meteorological satellite data. 29th Symposium of the European Association of Remote Sensing Laboratories, Jun 2009, Chania, Greece. pp.320-328, ⟨10.3233/978-1-60750-494-8-320⟩. ⟨hal-00468505⟩

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