SoDa Solar Radiation Data
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HC3 Persistence Forecast Service
This service provides HelioClim-3 version 4 and version 5 radiation values updated in real time, and forecasts until the end of the current day using a model of persistence. In brief, as soon as a new Meteosat image is available every 15 min, the HelioClim-3 database is updated in real time. To receive a time series covering the whole current day, we decided to complete the time series by applying a persistence model.
- Operational since March 2015
- Time steps: from 1 min to hourly data for today
- Radiation components: all radiation components (horizontal, fix-tilted, any tracker - Diffuse, Direct, Reflected and Global)
- Version: HelioClim-3v4 and HelioClim-3v5 radiation values in real time (H-15 min) and short-term forecasts using a model of persistence until end of the current day.
- Start of the service: first values are delivered as soon as the sun elevation is above 2° (before March 2016, the threshold was 12° as for the HC3 Archives)
- End of the service: last image is acquired at 20:45 UT. After that time, the radiation values are not updated anymore. At approximately 23:00 UT, the HelioClim-3 Persistence Forecast service and the HelioClim-3 Archives service delivers the same radiation values.