EMS Annual Meeting Abstracts
Vol. 20, EMS2023-562, 2023, updated on 16 Jan 2024
EMS Annual Meeting 2023
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Assessing aerosol related uncertainties in the NextSENSE2 system

Kyriakoula Papachristopoulou1,2, Ilias Fountoulakis2,3, Dimitra Kouklaki1, Charalampos Kontoes2, and Stelios Kazadzis4
Kyriakoula Papachristopoulou et al.
  • 1National and Kapodistrian University of Athens, Geology and Geoenvironment, Athens, Greece (kpapachr@noa.gr)
  • 2Institute for Astronomy, Astrophysics, Space Applications and Remote Sensing, National Observatory of Athens (IAASARS/NOA), Greece
  • 3Research Centre for Atmospheric Physics and Climatology, Academy of Athens, Athens, Greece
  • 4Physikalisch Meteorologisches Observatorium Davos, World Radiation Center (PMOD/WRC), Switzerland

NextSENSE2 operational system provides forecasts of surface solar radiation up to 3h ahead at high temporal (every 15min) and spatial (~5km x5km at subsatellite point) resolution, for a wide area including Europe, North Africa, and Middle East (MENA) region. For areas with rare cloudiness, especially during the dry period of the year, aerosols are the main attenuator of solar energy reaching the earth’s surface, hence accurate aerosol related optical properties are important for accurately estimating the available solar energy potential. In this study, the accuracy of the aerosol optical properties used as input to the NextSENSE2 system is assessed, under clear sky conditions, using ground-based measurements from 10 stations from the AERONET network for a whole year (2017). The 1-day forecast of aerosol optical depth (AOD) from Copernicus Atmospheric Monitoring Service (CAMS) and the monthly mean climatological values of single scattering albedo (SSA), and Angstrom exponent (AE) are evaluated against the corresponding AERONET measurements, along with the related uncertainties introduced to modelled GHI. The outcomes of this study are useful for understanding the effect of aerosol optical properties on surface solar radiation estimates and hence improving the model input/outputs, especially for areas highly affected by aerosols and with low cloudiness.   


This research was funded by the EXCELSIOR project (grant agreement No 857510). Kyriakoula Papachristopoulou would like to acknowledge funding for the participation at EMS2023 from the COST Action HARMONIA (International network for harmonization of atmospheric aerosol retrievals from ground based photometers), CA21119. Dimitra Kouklaki would like to acknowledge support by the Hellenic Foundation for Research and Innovation (H.F.R.I.) under the “First Call for H.F.R.I. Research Projects to support Faculty members and Researchers and the procurement of high-cost research equipment grant” (Atmospheric parameters affecting Spectral solar IRradiance and solar Energy (ASPIRE), project number 300).

How to cite: Papachristopoulou, K., Fountoulakis, I., Kouklaki, D., Kontoes, C., and Kazadzis, S.: Assessing aerosol related uncertainties in the NextSENSE2 system, EMS Annual Meeting 2023, Bratislava, Slovakia, 4–8 Sep 2023, EMS2023-562, https://doi.org/10.5194/ems2023-562, 2023.