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| EUMETSAT Polar System | |
|---|---|
| Name | EUMETSAT Polar System |
| Agency | EUMETSAT |
| Country | Multiple European Member States |
| Status | Operational |
| Satellites | Metop series |
| Operator | EUMETSAT |
| Mission type | Meteorology, Climate Monitoring, Atmospheric Chemistry |
| Launch vehicles | Soyuz, Ariane |
| Orbit | Sun-synchronous polar |
| Began | 2006 |
EUMETSAT Polar System
The EUMETSAT Polar System is a European polar-orbiting meteorological satellite programme designed to provide global atmospheric, oceanic and land-surface observations for weather forecasting, climate monitoring and environmental applications. The programme links satellite platforms, space agencies, meteorological services and scientific institutions to deliver continuity of polar observations critical for the World Meteorological Organization, European Centre for Medium-Range Weather Forecasts, European Space Agency, Met Office, Deutscher Wetterdienst, and national services across Europe. It forms a cornerstone of operational observational capacity alongside geostationary systems and complements programmes such as NOAA polar missions and Copernicus initiatives.
The programme centres on polar, sun-synchronous spacecraft operating in low Earth orbit to acquire high-resolution soundings and imagery for numerical weather prediction and climate records. Users include European Commission bodies, regional forecasting centres like Météo-France, research organisations such as Max Planck Society, and international bodies including the World Climate Research Programme. The system integrates satellite platforms, instrument suites, ground stations, processing centres and dissemination networks to supply timely data streams to operational and research communities worldwide.
Origins trace to coordination between EUMETSAT member states and partners in the 1990s to ensure continuity after the ERS series and in parallel with NOAA polar efforts. Formal agreements involved procurement and programme design with the European Space Agency and national space agencies including DLR and CNES. The development phase produced the MetOp series, with the first launch in 2006 following industrial contracts with prime contractors and instrument providers drawn from companies and institutes across France, Germany, United Kingdom, Italy and the Netherlands. Subsequent launches and upgrades responded to evolving requirements from ECMWF and the Global Climate Observing System to improve sounding accuracy, radiometric calibration and data latency.
The constellation is centred on the MetOp satellites built by consortia led by major aerospace firms and national agencies. Instrument suites combine microwave sounders, infrared sounders, imagers and scatterometers provided by European institutes and industrial partners. Key instruments include the Advanced Microwave Sounding Unit (AMSU), the Infrared Atmospheric Sounding Interferometer (IASI), the Global Navigation Satellite System Radio Occultation payloads, the Advanced Scatterometer (ASCAT) and instruments for ozone and trace gas monitoring. These payloads support measurements of temperature, humidity profiles, sea-surface winds, cloud properties, and atmospheric composition used by entities like NASA, NOAA, JAXA, and academic groups including University of Oxford and Imperial College London for validation and science exploitation.
The ground segment comprises mission control, data processing centres and network gateways maintained by EUMETSAT and national partners. Processing chains generate calibrated radiances, geophysical retrievals and higher-level products using algorithms developed in collaboration with research centres such as KNMI, Met Office Hadley Centre, and university groups. Data dissemination employs regional and global broadcast systems to serve operational centres like ECMWF and national meteorological services, while archives support climate research coordinated with the European Centre for Medium-Range Weather Forecasts and the Copernicus Climate Change Service.
Mission operations are managed to ensure continuity, quality control and calibration across the satellite lifetime, with teams coordinating anomaly response, orbit maintenance and instrument calibration activities alongside flight dynamics groups and instrument scientists from institutes like Rutherford Appleton Laboratory and Institut Pierre-Simon Laplace. Long-term planning addresses constellation replacement, overlap between platforms, and contingency cooperation with agencies including NOAA and NASA to mitigate gaps. Governance involves EUMETSAT executive bodies, technical advisory panels and user forums drawing representatives from national meteorological services and international organisations.
Products range from low-level radiances and calibrated brightness temperatures to geophysical retrievals such as temperature and humidity profiles, ozone columns, surface winds, and sea-ice parameters. These feed numerical weather prediction models at centres including ECMWF, assimilation systems at Météo-France, and specialised services for aviation supported by organisations like ICAO. Climate monitoring applications inform assessments by the Intergovernmental Panel on Climate Change and the Global Climate Observing System, while environmental monitoring supports disaster response coordinated with United Nations Office for Disaster Risk Reduction and maritime agencies including IMO.
The programme embodies multinational collaboration, with contributions from European national agencies, industrial partners, research institutions and intergovernmental organisations. Formal cooperation agreements exist with NOAA for data exchange and mission overlap, with technical partnerships involving ESA for spacecraft development and with international scientific consortia for instrument calibration and validation. User engagement includes work with the WMO Virtual Laboratory, regional bodies such as EUMETNET, and academia across institutions like ETH Zurich, Université Pierre et Marie Curie and Stockholm University to advance product development, algorithm research and climate applications.
Category:Satellites of Europe