Calibration of the ocean color and temperature scanner

Calibration results of the ocean color and temperature scanner (OCTS) on bo ard the Advanced Earth Observing Satellite (ADEOS) are presented, We have e valuated the OCTS responses to internal calibration sources (i.e., lamps, e lectric voltages, and sunlight), natural targets (i.e., night data and unif orm targets in the daytime), external calibration source (i.e., underflight of a calibrated airborne sensor), and a theoretical calibration source mod eled for the atmospheric radiation. We then compared the acceptability of t hese calibration sources.