THE CEOS DATABASE : Missions, Instruments and Measurements
CEOS EO HANDBOOK – INSTRUMENT SUMMARY - SGLI -
Full Name Second-generation Global Imager Status Operational
Instrument Agencies JAXA Maturity Medium Heritage
Instrument Type Imaging multi-spectral radiometers (vis/IR) and Ocean colour instruments Geometry Push-broom scanning / Cross-track scanning
Instrument Technology Medium-resolution spectro-radiometer Sampling Imaging
Data Access No Access Data Format HDF5
Measurements and Applications Medium resolution multi-spectral imaging of land, ocean and atmosphere. SGLI-VNR is an optical sensor capable of multi-channel nadir observation at wavelengths from near-UV to NIR and forward or backward polarization observation at red and near infrared wavelengths (Push-broom scanning). SGLI-IRS is an optical sensor capable of multi-channel nadir observation at wavelengths from SWIR to TIR wavelengths (Cross-track scanning).
Resolution Summary SGLI-VNR: 250 m, 1000 m; SGLI-IRS: 250 m, 500 m, 1000 m
[Best Resolution: 250m]
Swath Summary SGLI-VNR: 1150 km; SGLI-IRS: 1400km
[Max Swath: 1400 km]
Accuracy Summary
Waveband Summary VIS - NIR: 0.38 - 0.865 µm; SW: 1.05 - 2.21 µm; TIR: 10.8 - 12.0 µm
UV (~0.01 µm - ~0.40 µm)
VIS (~0.40 µm - ~0.75 µm)
NIR (~0.75 µm - ~1.3 µm)
SWIR (~1.3 µm - ~3.0 µm)
TIR (~6.0 µm - ~15.0 µm)
Instrument Measurements
Measurements Overview
CategoryParameter
AerosolsAerosol optical depth (TC)
Albedo and reflectancePhotosynthetically Active Radiation (PAR)
Fraction of Absorbed PAR (FAPAR)
Earth surface albedo
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 (land)Land surface imagery
Ocean colour/biologyOcean chlorophyll concentration
Ocean suspended sediment concentration
Color dissolved organic matter (CDOM)
Sea ice cover, edge and thicknessSea-ice cover
Sea-ice surface temperature
Snow cover, edge and depthSnow cover
Snow surface temperature
Snow Grain Size
Surface temperature (land)Land surface temperature
Surface temperature (ocean)Sea surface temperature
VegetationNormalized Differential Vegetation Index (NDVI)
Leaf Area Index (LAI)
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
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
Land Surface Temperature click here click here search ECV Inventory records
Leaf Area Index (LAI) 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
Sea Surface Temperature click here click here search ECV Inventory records
Snow click here click here search ECV Inventory records
Instrument Missions
GCOM-C - Global Change Observation Mission-Climate (2017 - 2022)
GCOM-C2 - Global Change Observation Mission-Climate2 (2021 - 2026)
GCOM-C3 - Global Change Observation Mission-Climate3 (2025 - 2030)
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