Copernicus Atmosphere Monitoring Service CAMS General Assembly, Athens, June 2016 Marion Schroedter-Homscheidt (DLR) with Armines (L. Wald, M. Lefèvre), Transvalor (E. Wey, L. Saboret) and FMI (A. Arola, W. Wandji) contributions The CAMS solar radiation products

2 User specific solar radiation information © BMU © TSK Flagsol © DLR UV & health UV & health materials - life time materials - life time ecosystems

3 User requirements – solar energy sector

4 Scattering through clouds and aerosols diffuse irradiance direct and diffuse irradiance Global irradiance Absorption from clouds, aerosols, ozone and water vapour diffuse irradiance Direct normal irradiance UV © MODIS

5 irradiance, cloud free irradiance © EUMETSAT/DLR clouds from satellite aerosol H2O, O3 from model Heliosat-4 and McClear physical approaches, fast raditative transfer Heliosat-4 and McClear physical approaches, fast raditative transfer © MEEO News: method paper Qu et al., MetZet, 2016 accepted News: method paper Qu et al., MetZet, 2016 accepted

6 Time series of clear sky irradiation in global coverage after 1-2 days delay online global, diffuse, direct and direct normal irradiation time series 1 min, 15 min, 1 hour, 1 day, 1 month temporal resolution interactive and OGC script access possible after 1-2 days delay online global, diffuse, direct and direct normal irradiation time series 1 min, 15 min, 1 hour, 1 day, 1 month temporal resolution interactive and OGC script access possible

7 Time series of all- sky irradiation in Europe/Africa/Middle East after 1-2 days delay online global, diffuse, direct and direct normal irradiation time series 1 min, 15 min, 1 hour, 1 day, 1 month temporal resolution interactive and OGC script access possible after 1-2 days delay online global, diffuse, direct and direct normal irradiation time series 1 min, 15 min, 1 hour, 1 day, 1 month temporal resolution interactive and OGC script access possible News hardware updates increased on-the-fly processing speed increase reliabilty in data flows mirror sites News hardware updates increased on-the-fly processing speed increase reliabilty in data flows mirror sites

8 Unique: Verbose mode maximum transparency all input values clouds aerosols water vapour ozone atmospheric profile surface reflection maximum transparency all input values clouds aerosols water vapour ozone atmospheric profile surface reflection

9 Validation & Quality Control – e.g. UV forecast evaluation Monthly relative bias Florence Kise Landvik Better performance since Sept revised UV processor and prognostic aerosols Better performance since Sept revised UV processor and prognostic aerosols

10 Increasing ground observation availability for validation 1 min resolution available within 3-4 months 10 min resolution 60 min resolution

11 References User‘s Guide at Heliosat-4 method: Qu et al., Fast radiative transfer parameterisation for assessing the surface solar irradiance: The Heliosat-4 method, MetZet, 2016 McClear method: Lefèvre et al., McClear: a new model estimating downwelling solar radiation at ground level in clear-sky conditions, AMT, 2013 UV and broadband irradiation evaluation: Quarterly validation reports at