C3S seasonal models anomaly

I would like to know what is the period of climatology used in these products to calculate the anomalies? I couldn't find this information anywhere in the product description.

"Seasonal forecast anomalies on single levels": https://cds.climate.copernicus.eu/cdsapp#!/dataset/seasonal-postprocessed-single-levels?tab=overview

"Seasonal forecast anomalies on pressure levels": https://cds.climate.copernicus.eu/cdsapp#!/dataset/seasonal-postprocessed-pressure-levels?tab=overview

As I understood,  it has been done based on the hihndcast period available on CDS (1993-2016)

Dear Luiz Gabriel,

as you have pointed out this is something that probably should be better documented in the CDS.

In any case, I can confirm you the anomalies provided in the two datasets you mentioned are calculated using the common reference period used for seasonal forecast products on the C3S, and that is from 1993 to 2016.

Apologies for the suboptimal level of information you've found, we'll try to improve that in future iterations of our documentation.


Eduardo Penabad
C3S Climate Predictions and Projections Team