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).
Full Name
Second-generation Global Imager
Status
Operational
Instrument Agencies
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
Open Access
Data Format
HDF5
Resolution
SGLI-VNR: 250 m, 1000 m; SGLI-IRS: 250 m, 500 m, 1000 m
[Best Resolution: 250m]
Swath
SGLI-VNR: 1150 km; SGLI-IRS: 1400km
[Max Swath: 1400 km]
Waveband
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) |
GCOM-C - Global Change Observation Mission-Climate (2017 - 2025) |
GCOM-C2 - Global Change Observation Mission-Climate2 (2021 - 2026) |
| GCOM-C3 - Global Change Observation Mission-Climate3 (2025 - 2030) |