Météosat

Météosat Météosat is a series of geostationary meteorological satellites developed for operational weather monitoring and climate observation by EUMETSAT in cooperation with the European Space Agency and national agencies such as CNES. The programme provides continuous imaging and sounding for Europe, Africa, and the Atlantic, supporting forecasting centres such as Météo-France, the Met Office, and the Deutscher Wetterdienst. Its data feed into numerical weather prediction at centres including ECMWF, Met Éireann, and the UK Met Office and support international systems like the World Meteorological Organization and the Global Climate Observing System.

Overview

The Météosat series operates in geostationary orbit to deliver visible, infrared, and sounding measurements from a fixed longitude above the equator, enabling synoptic monitoring of cloud systems, cyclones, and atmospheric dynamics for agencies such as NOAA, NASA, and JAXA. Initial satellites established sustained service for the World Meteorological Organization Regional Association VI, while later generations expanded capabilities for European Commission initiatives on Copernicus Programme and climate monitoring by organisations like IPCC. The programme interfaces with operational centres including Servicio Meteorológico Nacional (Argentina), South African Weather Service, and Instituto Nacional de Meteorología for regional applications.

History and Development

The programme began in the 1970s with collaboration between ESA and national partners such as CNES and was managed operationally by EUMETSAT after its formation in the 1980s, aligning with the timelines of programmes like NOAA's polar satellites and Japan's GMS series. Successive generations—often referred to as First Generation, Second Generation, and Third Generation—followed technology trends set by missions such as GOES-R and Himawari; milestones included improved spatial resolution, multispectral imaging, and sounding capabilities inspired by instruments on Metop and Meteosat Third Generation (MTG). Key programme events involved launches by providers such as Arianespace and satellite buses from contractors like Thales Alenia Space and Airbus Defence and Space, with industrial partners including OHB SE and Leonardo S.p.A..

Satellite Design and Payload

Early satellites carried imager instruments comparable to contemporaneous payloads on GOES and GMS, while later platforms incorporated advanced radiometers and hyperspectral sounders influenced by designs used on IASI and CrIS. Payloads include multi-channel imagers for visible, infrared, and water vapour bands, and sounding instruments for temperature and humidity profiling similar to those on Metop and GOES-R. Spacecraft platforms used avionics and power systems from suppliers such as Thales, with attitude control and station-keeping hardware integrating propulsion technologies seen on Ariane-launched geostationary satellites. Calibration approaches aligned with best practices from NOAA and EUMETSAT programmes, and instrument teams often collaborated with research institutes like LMD and ECMWF for algorithm development.

Operations and Ground Segment

Operational control and data dissemination are managed by EUMETSAT ground stations, mission control centres, and backup facilities, drawing on heritage from networks such as EUMETCast and international data exchange frameworks coordinated by the WMO. Ground segment elements include telemetry, tracking and command centres modelled after systems used by ESA missions, processing chains for Level 0–2 products, and data distribution to users including Météo-France, Deutscher Wetterdienst, AEMET, and climatology groups at institutions like Met Office Hadley Centre. International cooperation extends through interfaces with NOAA networks, JMA data exchanges, and participation in initiatives led by GCOS and CEOS.

Data Products and Applications

Météosat data products encompass visible and multispectral imagery, derived cloud masks, atmospheric motion vectors, sounding profiles, and rapid-scan imagery used by operational forecasting services including ECMWF, NCEP, and national centres. Applications span severe weather monitoring for events such as Mediterranean cyclogenesis and Tropical cyclone tracking, aviation support for authorities like Eurocontrol, renewable energy forecasting for utilities in collaboration with ENTSO-E, and environmental monitoring for organisations like EEA. Climate reanalysis projects at institutes such as KNMI and University of Reading ingest long-term Météosat records, while research users at University of Oxford, ETH Zurich, and Max Planck Institute exploit datasets for studies in atmospheric dynamics, radiation budgets, and aerosol transport.

Category:Weather satellites Category:EUMETSAT