• Acronyms, terminology and units
• How Digital Elevation Models impact radiation?
• Linke Turbidity factor
• Meteosat images
• Plane orientations and radiation components
• Time references
• Water vapor and spectral answers of sensors

• Introduction
• Heliosat-2
• Decomposition models

• Overview
• Classic CSV format output
• Unified CSV format output
• Versions
• Missing data
• Problems

• Overview of the HC3 Real Time and Persistence Forecast (day "D") service

• Overview of the HC3 Similarity Forecast (day "D+1") service

• Overview
• Output column content
• Missing data

• Introduction
• Upgraded Oct. 2017 (CAMS radiation bias correction + McClear version 3). By construction, the CAMS Radiation Service performs the calculation of the radiation on-the-fly at the request of any user. It processes on-the-fly the necessary information that is stored in CAMS and does not create a proper database of the results. Hence, the new version 3 applies from now on back to 2004-02-01.
• CAMS radiation service in a nutshell
• User's guide to the CAMS radiation service

• Download for free volume of CAMS Radiation data over: (both volumes were computed with McClear v3 + CAMS radiation bias correction - 11 Oct. 2017)
  • Europe: volume "AGATE"
  • Africa: volume "JADE"

• Quality check of solar radiation data
• Validation protocol
• Presentation of the ground station networks used in the following validation results:
  • BSRN stations
  • RMI Belgium
  • INPE Brazil
  • INMET Brazil
  • Oman
  • Egypt
  • Morocco
  • DWD
  • PIRATA

We recommend you to use our "Irradiation Validation Report" online interface to carry out the quality assessment of CAMS radiation, HelioClim-3 version 4, or HelioClim-3 version 5 against the high quality in-situ measurements available on our servers.

• HC3 Archives
• HC3 Current Day (data for today)
• HC3 Similarity Forecast (data for tomorrow)
• HC1
• CAMS Radiation service

• Error messages and FAQ
• Examples of scripts for each service (CURL/WGET, Windows/Unix)

• HC3 Archives
• HC3 Current Day (day "D")
• HC3 Similarity Forecast (Tomorrow)
• HC1
• CAMS Radiation service
• CAMS McClear
• MERRA-2
• GFS
• Solar Geometry 2