Copernicus interactive climate atlas (C3S atlas)

The Copernicus Interactive Climate Atlas (C3S Atlas) is a web‑based tool from the Copernicus Climate Change Service offering flexible exploration of past, present and future climate data. It integrates observational, reanalysis and projection datasets, and allows users to customise regional analyses and visualise key climate variables via maps, charts and time series.

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OVERVIEW

The C3S Atlas is a live, web-based application that enables flexible spatial and temporal exploration of past, present and future climate data. It integrates a range of high-quality observational, reanalysis and projection datasets—including ERA5, ERA5-Land, ORAS5, E-OBS, CMIP5/6, CORDEX-CORE, CORDEX-EUR-11 and others. It is developed by the Copernicus Climate Change Service (C3S), part of the EU’s Copernicus programme, and implemented by ECMWF on behalf of the European Commission, with contributions from Predictia and CSIC-IFCA.

The tool includes around 30 climate variables and indices, expanding on those in the IPCC interactive atlas to capture key hazard-drivers such as humidity, soil moisture, radiation, runoff and drought indicators. It offers map visualisations, regional time series, “climate stripes”, annual and seasonal cycle plots, with interactive selection of predefined or custom regions and downloadable data.

Target audience

Designed primarily for policymakers and climate service users, the Atlas supports evidence-based policy and adaptation planning. Its intuitive interface and flexible, detailed outputs also serve researchers, analysts and other professional users.

Relevance to finance professionals

Physical risk assessment: Supports evaluation of climate-related risks—heat, drought, flooding—across specific regions and scenarios.
Scenario analysis: Enables comparison of projected outcomes under warming thresholds (e.g. 1.5 °C, 2 °C) for stress-testing portfolios.
Custom region focus: Allows tailored analyses for specific assets, sectors or regions using both predefined and bespoke boundaries.
High-quality data: Harmonised, quality-controlled datasets minimise preprocessing, supporting reliable, repeatable analysis.
Disclosure support: Supplies credible evidence for climate-related financial disclosures (e.g. TCFD), resilience planning, and strategic decision-making.