New version of the Copernicus Interactive Climate Atlas dataset and viewer

Announcements C3S - Announcements
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We are pleased to announce that the new version (v2) of the Copernicus Interactive Climate Atlas (C3S Atlas) dataset and viewer has been published on 07-05-2025.

The new version of the dataset includes many new data sources and variables such as:

  • Additional observation-based data sources; Berkeley Earth Foundation dataset (BERKEARTH) for temperature, NOAA Climate Prediction Center dataset (CPC) for precipitation and the European Space Agency (ESA) SST Climate Change Initiative (CCI) dataset (SSTSAT) for sea surface temperature.
  • Regional reanalysis for Europe (CERRA: Copernicus European Regional Reanalysis).
  • SSP1-1.9 scenario for the CMIP6 models.
  • New bias adjusted variables for temperature and precipitation threshold indices.
  • Updated and improved drought indices.
  • Several new extreme climate indices.

For more details, please check the relevant documentation.

The new version of the viewer includes some new features such as:

  • New selector for bias adjusted variables
  • Ensemble granularity information for climate projections in regional products (ability to distinguish and subselect climate models)
  • New regional selection of mega cities
  • Summary table, monitoring and urban heat island information in the regional plots

For more details, please check the relevant documentation.

Finally, please also note that new C3S Atlas User Tools are also available:

These tools provide Jupyter Notebook examples about the computation of some of the C3S Atlas climate indices and also how some of the visual products are prepared.

For any enquiries regarding this dataset, please contact us via the Support Portal (ECMWF login required).

ECMWF Support

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Hi! The atlas is down. Is there an estimate when it will be available again? Thanks!

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I have an update, maybe helpful to others: the atlas works in chrome for me, but not in firefox.

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Would it be possible to add a few additonal metrics to do with dew point and daytime high and nighttime low temperatures to the Copernicus Interactvie Atlas and Dataset?

It would be helpful to have the following 5 metrics added to the Atlas and Dataset:

  • Average Monthly Dew Point (d2m)
  • Maximum Monthly Dew Point (d2mx) - the absolute maximum dew point in a particular month
  • Minimum Monthly Dew Point (d2mn) - same as above, but the minimum recorded value in a particular month
  • Monthly Maximum of Minimum Temperature (tnx) - The warmest night of a particular month
  • Monthly Minimum of Maximum Temperature (txn) - The coldest day(time high) of a particular month

These suggested metrics would provide a better insight into how humid and how high can the dew points get, as well as how warm the overnight lows can get and how cold the daytime highs can go.

Right now we already have “Minimum of Minimum Temperature (tnn)” and “Maximum of Maximum Temperature (txx)”, but adding similar coverage for dewpoints, low and high dewpoints, plus warm nights, and cold days; would make it easier to assess the impact on each location.