Metop

Metop
Name	Metop series
Mission type	Meteorological
Operator	EUMETSAT
Manufacturer	Airbus Defence and Space, SSTL
Launch mass	~3,500 kg
Power	~1,100 W
Orbit	Sun-synchronous
Status	Operational/Retired (varies by satellite)

Metop

The Metop series comprises a set of polar-orbiting meteorological satellites operated by EUMETSAT in collaboration with the European Space Agency and national agencies. Designed to provide global atmospheric profiling, surface temperature, and humidity measurements, the program supports numerical weather prediction and climate monitoring with instruments derived from technology developed by NOAA and partners. The spacecraft are launched into sun-synchronous low Earth orbit to deliver regular sounding, radiometry, and scatterometry data essential to operational centers such as ECMWF, UK Met Office, and Météo-France.

Overview

The program delivers high-vertical-resolution sounding and imaging to organizations including EUMETSAT, ESA, NOAA, Met Office, Deutscher Wetterdienst, and Météo-France. Operating in a morning equator-crossing sun-synchronous orbit similar to platforms like Suomi NPP and NOAA-19, the satellites provide continuity with historic series such as ERS-1 and ERS-2 and complement geostationary systems like Meteosat. Data flow supports forecasting centers such as ECMWF, NCEP, JMA, and research institutions like University of Oxford and Max Planck Institute for Meteorology.

Development and Design

Development was led by industrial teams including Airbus Defence and Space (formerly Astrium), with contributions from national agencies such as CNES, DLR, and UKSA. Heritage stems from programs like NOAA-POES and sensor designs from NASA labs and European Space Research and Technology Centre. The spacecraft bus integrates attitude control, thermal systems, and power from contractors like SSTL and avionics suppliers with flight software influenced by standards from ESA and testing protocols used at facilities such as ESTEC and IABG. Designers balanced instrument stability for long-term climate records with redundancy practices used in missions like Terra and Aqua.

Instruments and Payload

Payloads include infrared and microwave sounders, imagers, and scatterometers developed by consortia from France, Germany, United Kingdom, Italy, and Sweden. Key instruments trace lineage to sensors on NOAA and Aqua, and are calibrated using techniques applied on Metop-class missions and reference missions such as CLARREO concept studies. Major payload elements are analogous to instruments on AIRS, IASI, AMSU, ASCAT, and GOME, delivering radiances and backscatter used by users at ECMWF, JMA, CMA, and BoM.

Launches and Mission History

Launch services were provided by vehicles similar to Ariane 5 and Soyuz variants, with ground operations coordinated from centers like Kourou, Baikonur, and European launch facilities. The program timeline references milestones celebrated alongside projects such as ERS and Sentinel launches, with early commissioning supported by teams from EUMETSAT and ESA. Operational handovers, routine orbital maintenance, and anomaly responses followed procedures comparable to NOAA mission operations and employed tracking networks including Svalbard Satellite Station and Kiruna Space Campus.

Operations and Data Products

Data streams feed assimilation systems at ECMWF, NCEP, UK Met Office, and national services including DWD and Météo-France. Products include atmospheric temperature and humidity profiles, surface temperature fields, sea ice observations, and wind vectors derived following methods used by JMA and CMA. Calibration and validation campaigns involve institutions like University of Reading, ECMWF, Copernicus Climate Change Service, and research laboratories such as LMD and PIK. Archived datasets are ingested into repositories maintained by EUMETSAT and interoperable with platforms like Copernicus and GEOSS.

International Cooperation and Impact

The program exemplifies European cooperation among EUMETSAT, ESA, national meteorological services including Met Office, DWD, Météo-France, and industrial partners such as Airbus. Its data underpin global forecasting collaborations among WMO members, assimilation centers like ECMWF and NCEP, and climate monitoring efforts at IPCC-affiliated research groups. Impact includes improved forecast skill comparable to gains associated with missions like Suomi NPP and strengthened operational resilience through partnerships with NOAA, JMA, and the World Meteorological Organization.

Category:European meteorological satellites Category:Earth observation satellites