Download site for CFC maps of the Iberian Peninsula

The cloud physical properties maps on this website are raster layers with a resolution of 100 m, in UTM-30N projection with the ETRS89 datum. They contain cloud physical properties data for the Iberian Peninsula and are available in two formats:

- MiraMon: .img in .mmzx (ISO 19165:2018), openable directly in MiraMon.
- GeoTIFF: .tif in .zip (ISO/IEC 21320-1:2015), openable in various environments after downloading the ZIP.

The CFC (Cloud Fractional Cover) series derived from satellite remote sensing are currently available, offering detailed insights into the spatiotemporal variability. The atmospheric model integrates these CFC data across the Iberian Peninsula, using CLAAS 2.1 products from the SEVIRI sensor on the geostationary Meteosat Second Generation (MSG) satellites. These data provide hourly values on a monthly and daytime basis (referred to as the monthly diurnal-cycle) for the 2004–2017 period, with an update to CLAAS 3.0 for the 2018–2020 period. The results are expressed as fraction of one.

- The CFC data used for calculating the InsolMets model is available on the EUMETSAT website: CFC SEVIRI CLASS 2.1 (2004–2017) and CFC SEVIRI CLASS 3.0 (2018–2020)

The data on this website have been prepared by Catalina Roca-Fernández, Xavier Pons and Miquel Ninyerola, from the Grumets research group at the Universitat Autònoma de Barcelona, as part of a comparative study of methods for calculating solar radiation in the Iberian Peninsula, published in:

➠  Roca-Fernández, C.; Pons, X.; Ninyerola, M. (2025). "A Comparison of Different Solar Radiation Models in the Iberian Peninsula". Atmosphere, 16(5), 590. Doi: 10.3390/atmos16050590

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CFC layers are available in different formats

- Monthly climate data: 12 layers (one per month), providing median values for that month over the entire 2004–2020 period.

- Monthly data for each year: 204 layers (one per month, year by year), providing average values for each month from 2004 to 2020.

- Yearly data: 17 layers (one per year), providing median values for each year (2004–2020).

- Global data: 1 layer for the entire period, providing median values (2004–2020).

➢    Monthly climate data (2004–2020):

➢    Monthly data for each year (2004–2020):

➢    Yearly data (2004–2020):

➢    Global data (2004–2020):

For any questions you can write to Xavier.Pons@uab.cat