Full Name Global Imager Status No longer operational
Instrument Agencies JAXA Maturity
Instrument Type Imaging multi-spectral radiometers (vis/IR) Geometry Conical scanning
Instrument Technology Medium-resolution spectro-radiometer Sampling Imaging
Data Access Data Format
Measurements and Applications Measures water vapour, aerosols, cloud cover, cloud top height/temp, ocean colour, sea surface temperature, land surface temparature, glacier extent, icebergs, sea ice and snow cover, photosynthetically active radiation, vegetation type and land cover.
Resolution Summary 1 km for 28 bands, 250 m for 6 bands
Swath Summary 1600 km
Accuracy Summary Specific humidity profile: 0.5 g/m2 through total column, surface temp 0.4 - 0.5 K, cloud top temp: 0.5 K, cloud cover: 3%, cloud top height: 0.5 km, ice and snow cover: 5%
Waveband Summary VIS and NIR: 23 bands (380 - 830 nm), NIR - SWIR: 6 bands (1050 - 2215 nm), MWIR - TIR: 7 bands (3.75 - 11.95 µm)
VIS (~0.40 µm - ~0.75 µm)
NIR (~0.75 µm - ~1.3 µm)
SWIR (~1.3 µm - ~3.0 µm)
MWIR (~3.0 µm - ~6.0 µm)
TIR (~6.0 µm - ~15.0 µm)
Instrument Measurements
Measurements Overview
AerosolsAerosol Extinction / Backscatter (column/profile)
Aerosol effective radius (column/profile)
Aerosol absorption optical depth (column/profile)
Cloud particle properties and profileCloud optical depth
Cloud type, amount and cloud top temperatureCloud type
Cloud cover
Cloud top height
Cloud top temperature
Multi-purpose imagery (ocean)Ocean imagery and water leaving spectral radiance
Ocean colour/biologyOcean chlorophyll concentration
Ocean suspended sediment concentration
Radiation budgetShort-wave Earth surface bi-directional reflectance
Sea ice cover, edge and thicknessSea-ice cover
Snow cover, edge and depthSnow cover
VegetationNormalized Differential Vegetation Index (NDVI)
Vegetation type
Thematic Links Global Climate Observing System Essential Climate Variables (GCOS ECVs)
ECVDescriptionProduct(s)ECV Inventory 3.0 Record(s)
Aerosols properties click here click here search ECV Inventory records
Cloud Properties 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
ADEOS-II - Advanced Earth Observing Satellite - II (2002 - 2003)