CASIE
Compact Airborne System for Imaging the Environment

The Compact Airborne System for Imaging the Environment (CASIE) is an airborne suite of remote imaging sensors operated by the University of Washington Applied Physics Laboratory (APL). It includes three thermal infrared (TIR) cameras, a longwave radiometer, a visible band camera to gather infrared and visible imagery, and radiometric measurements for mapping snow, land, and tree surface temperature brightness. The TIR cameras operate in the 8-14 μm spectral range, capturing imagery at 5 Hz with a spatial resolution of 1 to 2 meters. The longwave radiometer operates in the 9.6-11.5 μm spectral region, measuring brightness temperature at 30 Hz with a spatial resolution of 50 meters. The visible band camera records imagery in the 400-700 nm range at 2 Hz with a spatial resolution of 5 meters.