Sensor · Spaceborne

Geostationary High-speed Imager

Compiled from public sources on 2026-06-16. Not independently verified by China Meteorological Administration.

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FY-4B seven-channel geostationary rapid-scan VIS/IR radiometer for one-minute selected-area meteorological imagery.

Sensor

Geostationary High-speed Imager is the FY-4B rapid regional imager for selected-area geostationary meteorology, separate from the full-disc AGRI imaging payload.^[1]^[2] It acquires 2000 x 2000 km regional frames at one-minute intervals for fast-evolving systems such as typhoons and severe convection.^[1]^[3] The instrument has seven channels: an all-colour 0.25 km channel, five visible/NIR/SWIR channels from 0.445 to 1.64 um at 0.5 km, and one 10.3-12.5 um thermal channel at 2 km.^[1]^[4] GHI imagery has demonstrated atmospheric-motion-vector production from FY-4B observations.^[1]

Where this fits, supply chain

Compositional position

FY-4B ——— this payload

this ——— FY-4B (Operational) flies on

Methods this sensor implements

Demonstrated

Atmospheric motion vectors (AMV)via FY-4B
GHI rapid selected-area imaging supports frequent cloud-feature tracking and mesoscale nowcasting.

Capable, undemonstrated

None on record.

Topics this relates to

Atmospheric Wind Observation Atmospheric motion vectors (AMV)(demonstrated)well suited

Sources

[1]WMO OSCAR instrument record: GHIagency doc2026-06-16
[2]NSMC FY-4B Instruments: Geostationary High-speed Imageragency doc2026-06-16
[3]NSMC FY-4B satellite pageagency doc2026-06-16
[4]CMA CGMS-50 working paper: Introduction of Fengyun-4B Geosynchronous High-speed Imageragency doc2026-06-16

Cite https://eo-atlas.org/products/sensor/ghi Markdown twin → Field definitions →