Abstract
A field campaign for various calibration of ADEOS/AVNIR and OCTS was conducted at Ivanpah Playa, California, USA on March 4 1997. Through a careful analysis of the observed optical depth of the atmosphere, the measured surface Bidirectional Reflectance Distribution Function (BRDF) and the other meteorological data, Top of Atmosphere (TOA) radiance was estimated based on the Radiative Transfer Equation (RTE) and was compared to the real AVNIR and OCTS derived radiance. It is found that the difference between both ranges from around -3.5 to -20% for AVNIR while those for OCTS ranges from approximately -9.5 to -15%.