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Metop-B spacecraft illustration over the Earth

Metop-A (launched on October 19, 2006) and Metop-B (launched on September 17, 2012) are in a lower polar orbit, at an altitude of 817 kilometres, to provide more detailed observations of the global atmosphere, oceans and continents. The third MetOp satellite, MetOp-C, was launched on a Soyuz rocket from Europe’s Spaceport in French Guiana on November 6, 2018 to continue the provision of data for weather forecasting from polar orbit.

Under Interagency agreements with NOAA, NASA (GSFC) provides five POES heritage instruments AMSU-1, AMSU-2, AVHRR/3, HIRS/4 and SEM-2 in support of the MetOp Missions.


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NOAA/NASA Instruments

AMSU

Advanced Microwave Sounding Unit→   Measurements of the scene radiance, and estimate the global atmospheric temperature and moisture profiles from the surface to the upper stratosphere.
AMSU-a1_photo

AVHRR/3

Advanced Very High Resolution Radiometer→   Providing daily and nighttime estimates ofland and sea surface temperature, and radiance imaging can be use to show cloud, ice, snow, and vegetation cover.
avhrr_photo

SEM-2

Space Environment Monitor-2→   Measurements of Earth's radiation belts and charged particle fluxes at satellite altitude. Provide awareness of solar and terrestrial anomalies and warnings of solar wind occurrences that may damage or impair satellite functionality.
SEM photo

HIRS/4

High Resolution Infrared Radiation Sounder →   Estimate the atmosphere's vertical temperature and humidity profiles and the pressure of Earth's surface. Estimate sea surface temperatures, total atmospheric ozone, precipitable water, cloud height, and surface albedo.
avhrr_photo
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