Advanced Meteorological Imager (AMI)

Advanced Meteorological Imager (AMI) is the operational 16-channel passive-optical payload on GEO-KOMPSAT-2A, covering visible, near-infrared, shortwave-infrared and thermal-infrared observations from 470.2 nm to 13287 nm.^[1][2] Its channel set is VIS0.4 at 470.2 nm, VIS0.5 at 508.6 nm, VIS0.6 at 639.4 nm, VIS0.8 at 863 nm, NIR1.3 at 1374 nm, NIR1.6 at 1609.2 nm, IR3.8 at 3831.6 nm, IR6.3 at 6210.4 nm, IR6.9 at 6941.3 nm, IR7.3 at 7326.6 nm, IR8.7 at 8588.1 nm, IR9.6 at 9621 nm, IR10.5 at 10353.9 nm, IR11.2 at 11228.5 nm, IR12.3 at 12365.1 nm, and IR13.3 at 13287 nm.^[1][2]

AMI's finest visible-channel sampling is 500 m, and validation literature describes 0.5 or 1 km visible-channel resolution with 2 km near-infrared and infrared resolution.^[2] Its documented observation pattern includes 10 minute full-disk imaging and 2 minute regional imaging, supporting rapid meteorological scene updates from geostationary orbit.^[2] Atmospheric motion vectors are demonstrated on GEO-KOMPSAT-2A.^[1]