WEkEO
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WEkEO WEkEO is a European Earth observation and climate data processing platform operated by a consortium of research centres and agencies to support environmental science and policy. It provides cloud-based access to satellite archives, in situ datasets, and processing tools for applications in meteorology, oceanography, cryosphere studies, and remote sensing. The platform integrates resources from major space agencies, research organisations, and regional programmes to enable reproducible analysis and downstream services.
Overview
WEkEO functions as a thematic cloud platform that brings together datasets from organisations such as the European Space Agency, National Aeronautics and Space Administration, European Organisation for the Exploitation of Meteorological Satellites, Copernicus Programme, and national meteorological services. It targets users across academia, industry, and public administrations including participants from European Commission, Centre National d'Études Spatiales, Deutsches Zentrum für Luft- und Raumfahrt, Pôle d'Observation et de Recherche Systèmes d'Information, and regional observatories. The initiative aligns with policies and frameworks promoted by the Horizon 2020 research programme and infrastructure activities associated with European Research Area coordination. WEkEO aims to reduce barriers to climate and environmental information uptake by offering interoperable services compatible with standards from bodies like the Open Geospatial Consortium and World Meteorological Organization.
Services and Tools
The platform provides interactive tools and virtual machines for data processing tied to services from Google Cloud, Amazon Web Services, and European cloud providers such as European Cloud Initiative participants. Users can exploit notebooks preconfigured with libraries common in European Space Agency research, use batch processing workflows inspired by Apache Airflow pipelines, and run analysis employing packages linked to Python (programming language), R (programming language), and Julia (programming language). WEkEO supports service interfaces aligned with Geographic Information System ecosystems like QGIS and ArcGIS, and integrates visualisation frameworks similar to Cesium (software) and Leaflet (software). Authentication and user management integrate identity federation approaches used by eduGAIN and research infrastructures such as European Grid Infrastructure.
Data and Catalogues
WEkEO hosts and indexes catalogues that aggregate satellite constellations and mission data including archives from Sentinel-1, Sentinel-2, Sentinel-3, as well as legacy missions such as Envisat and ERS satellites. In situ networks and observational programmes linked through the platform include records from Global Ocean Observing System, Argo (oceanography), International Cryosphere Climate Initiative, and regional networks coordinated by organisations like European Environment Agency and National Oceanic and Atmospheric Administration. Catalogues support metadata standards conceived by ISO 19115 and harvesting protocols similar to OAI-PMH while enabling cross-referencing with datasets indexed by systems such as Copernicus Climate Change Service and Copernicus Marine Environment Monitoring Service.
Infrastructure and Technology
The technological backbone combines high-performance computation clusters, object storage solutions, and virtualisation stacks, drawing architectural patterns from projects like PRACE and EUDAT. Storage layers implement distributed file systems and object stores compatible with interfaces used by Ceph and OpenStack Swift, while compute orchestration leverages container technologies popularised by Docker (software) and scheduling mechanisms akin to Kubernetes. Data transfer and access use protocols inspired by OPeNDAP, THREDDS, and cloud-native APIs comparable to those used by Amazon S3 standards. Backup and replication strategies mirror best practices from European Space Agency ground segments and research infrastructures such as GEANT.
Governance and Funding
The platform is governed by a consortium model that coordinates partners from national research centres, space agencies, and European institutions including Centre National de Recherche Scientifique, Italian Space Agency, Spanish National Research Council, and member states’ ministries. Funding has been secured through European instruments and competitive grants including components from Horizon 2020 and contributions linked to the European Commission’s digital infrastructure priorities. Operational oversight references governance practices used by entities like European Research Council panels and programme committees patterned after Copernicus governance arrangements.
User Community and Use Cases
User communities encompass academic researchers from institutions such as University of Oxford, ETH Zurich, Sorbonne University, and Universität Hamburg; commercial actors in sectors like maritime shipping, agriculture, and renewable energy represented by companies similar to EUMETSAT downstream partners; and public authorities including national meteorological services and disaster management agencies like European Civil Protection actors. Common use cases include atmospheric composition monitoring related to Intergovernmental Panel on Climate Change assessments, sea surface temperature mapping used in Marine Strategy Framework Directive applications, land-cover change studies relevant to Habitat Directive reporting, and cryosphere monitoring contributing to work by International Arctic Science Committee.
History and Development
The platform emerged from collaborative efforts among European research infrastructures, space agencies, and computational projects during the 2010s, influenced by milestones such as launches in the Copernicus Programme and cloud adoption trends promoted by initiatives like European Cloud Initiative. Its roadmap and expansions reflect interactions with programmes managed by European Commission directorates, and technical contributions from institutes involved in European Research Area coordination and infrastructure projects funded through Framework Programme mechanisms. Continuous development has incorporated lessons from operational platforms such as Copernicus Data and Information Access Services and scientific collaborations exemplified by multi-institution consortia in the Earth observation community.