THE CEOS DATABASE : Missions, Instruments and Measurements
CEOS EO HANDBOOK – INSTRUMENT SUMMARY - GEMS -
Full Name Geostationary Environment Monitoring Spectrometer Status Operational
Instrument Agencies KARI, NIER, BATC Maturity
Instrument Type Atmospheric chemistry Geometry Nadir-viewing
Instrument Technology Medium-resolution spectro-radiometer Sampling Imaging
Data Access Open Access Data Format GEOTIF
Measurements and Applications Measurements of atmospheric chemistry, precursors of aerosols and ozone in particular, in high temporal and spatial resolution over Asia.
Resolution Summary 7 x 8 km at Seoul
[Best Resolution: 3500m]
Swath Summary FOR (Field Of Regard) is 5000km x 5000km
[Max Swath: 5000 km]
Accuracy Summary
Waveband Summary 0.30 µm - 0.50µm
VIS (~0.40 µm - ~0.75 µm)
Instrument Measurements
Measurements Overview
CategoryParameter
AerosolsAerosol absorption optical depth (column/profile)
OzoneO3 Mole Fraction
Trace gases (excluding ozone)NO2 Mole Fraction
SO2 Mole Fraction
Thematic Links Global Climate Observing System Essential Climate Variables (GCOS ECVs)
ECVDescriptionProduct(s)ECV Inventory 3.0 Record(s)
Ozone click here click here search ECV Inventory records
Instrument Missions
GEO-KOMPSAT-2B - Geostationary Korea Multi-Purpose Satellite-2B (2020 - 2030)
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