Some of the plots routinely displayed on our verification page (C3S seasonal forecasts verification plots) have been temporarily removed, upon finding them to have been affected by a computational error in our processing chain. The affected diagnostics are the maps of correlation for the 3-month aggregations, for all the variables.
Once corrected versions of these diagnostics are computed, an announcement will be posted on these pages and the revised plots will be uploaded to the webpage. In the meantime users can reproduce these plots by following the workflow described in the C3S Jupyter Notebook tutorial on seasonal forecasts verification (Seasonal Forecast Verification — C3S Training)