Sensor · Spaceborne

Geostationary High-speed Imager

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]

Operator pricing

Pricing not publicly listed by operator

Supply chain position

carried by FY-4B

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.
Multispectral optical imaging
[nsmc-fy4b-instrument][wmo-ghi] One all-colour 0.25 km channel and five visible, near-infrared and shortwave-infrared channels from 0.445 to 1.64 um at 0.5 km; edge covers its reflective channels only.
Thermal infrared imagingvia FY-4B
[nsmc-fy4b-instrument] One 10.3-12.5 um thermal channel at 2 km; edge covers that channel.

Capable, undemonstrated

None on record.

Topics this relates to

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

Weather nowcasting Atmospheric motion vectors (AMV)(demonstrated)well suited

Disaster damage assessment Multispectral optical imaging(demonstrated)well suited

Snow cover Multispectral optical imaging(demonstrated)well suited

Cloud properties Multispectral optical imaging(demonstrated)adequate

Coastal erosion Multispectral optical imaging(demonstrated)adequate

Crop-type mapping Multispectral optical imaging(demonstrated)adequate

Deforestation Multispectral optical imaging(demonstrated)adequate

Flooding Multispectral optical imaging(demonstrated)adequate

Illegal construction Multispectral optical imaging(demonstrated)adequate

Land cover change Multispectral optical imaging(demonstrated)adequate

Terrain elevation Multispectral optical imaging(demonstrated)adequate

Urban change Multispectral optical imaging(demonstrated)adequate

Crop phenology Multispectral optical imaging(demonstrated)marginal

Crop stress and yield Multispectral optical imaging(demonstrated)marginal

Inland water Multispectral optical imaging(demonstrated)marginal

Mineral exploration Multispectral optical imaging(demonstrated)marginal

Pasture and grazing Multispectral optical imaging(demonstrated)marginal

Wildfire Multispectral optical imaging(demonstrated)marginal

Building thermal performance Thermal infrared imaging(demonstrated)well suited

Urban heat island Thermal infrared imaging(demonstrated)well suited

Sources

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

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How to cite this page

Plain text

Geostationary High-speed Imager. EO-Atlas, SpectraWorks B.V. https://eo-atlas.org/products/sensor/ghi (CC BY 4.0)

BibTeX

@misc{eoatlas:products:sensor:ghi,
  title = {Geostationary High-speed Imager},
  author = {{EO-Atlas}},
  publisher = {SpectraWorks B.V.},
  note = {CC BY 4.0},
  url = {https://eo-atlas.org/products/sensor/ghi}
}