CEOS EO HANDBOOK – INSTRUMENT SUMMARY - HSI-2 (HJ-2A) -
Full Name Hyper Spectrum Imager 2 Status Operational
Instrument Agencies CAST Maturity
Instrument Type Imaging multi-spectral radiometers (vis/IR) Geometry Push-broom scanning
Instrument Technology Multi-purpose imaging Vis/IR radiometer Sampling Imaging
Data Access Constrained Access Data Format GEOTIFF
Measurements and Applications Hyperspectral measurements for environment and disaster management operations.
Resolution Summary 100 m
[Best Resolution: 100m]
Swath Summary 50 km
[Max Swath: 50 km]
Accuracy Summary
Waveband Summary 0.45 - 0.95 µm (128 bands)
VIS (~0.40 µm - ~0.75 µm)
NIR (~0.75 µm - ~1.3 µm)
Instrument Measurements
Measurements Overview
CategoryParameter
Albedo and reflectancePhotosynthetically Active Radiation (PAR)
Fraction of Absorbed PAR (FAPAR)
Earth surface albedo
Cloud type, amount and cloud top temperatureCloud imagery
Cloud type
Cloud top temperature
Multi-purpose imagery (land)Land surface imagery
Multi-purpose imagery (ocean)Ocean imagery and water leaving spectral radiance
Ocean colour/biologyOcean chlorophyll concentration
Ocean suspended sediment concentration
Color dissolved organic matter (CDOM)
Radiation budgetShort-wave Earth surface bi-directional reflectance
Sea ice cover, edge and thicknessSea-ice cover
Sea-ice thickness
Snow cover, edge and depthSnow cover
VegetationVegetation type
Thematic Links Global Climate Observing System Essential Climate Variables (GCOS ECVs)
ECVDescriptionProduct(s)ECV Inventory 3.0 Record(s)
Albedo click here click here search ECV Inventory records
Cloud Properties click here click here search ECV Inventory records
Fraction of Absorbed Photosynthetically Active Radiation (FAPAR) click here click here search ECV Inventory records
Ocean Colour click here click here search ECV Inventory records
Sea Ice click here click here search ECV Inventory records
Snow click here click here search ECV Inventory records
Instrument Missions
HJ-2A - Huan Jing-2A (2020 - 2025)
HJ-2B - Huan Jing-2B (2020 - 2025)