ASoRA: Attenuation of the Solar Radiation by Aerosols

The aim of the ASoRA project is to improve the estimate of the solar ressource for the Concentrated Solar Plants (CSP) with tower technology. Observation data sets are exploited to derive the attenuation of the solar radiation between the heliostat and the optical receiver.

HYGEOS provides all necessary aerosol and radiative parameters to make the best estimate of the plant productivity, considering the atmospheric attenuation.

Satellite remote sensig observation data is used to estimate the solar resource for tower CSPs located anywhere in the world. The representativity of satellite products is evaluated by ground-based instrumentation. The diffusometer is an operational instrument providing estimates of the aerosol extinction at surface level. The diffusometer measurements need to be corrected according to the aerosol nature, with an impact of up to +/-4% on slant path transmittance estimates.

Estimation of atmospheric attenuation in both the atmospheric column and in the slant path,
exploiting satellite remote sensing observation data.
Acurate estimation of atmospheric attenuation in the slant path,
by ground-based instrumentation.

Publications:
2 proceeding papers, and 3 posters presented at SolarPACES 2015-2017

Funder: co-funding by EDF and HYGEOS
Duration: 2015-2018
Contact at Hygeos: Thierry Elias