First results from GLI’s solar calibration

The whiskbroom scanner Global Imager (GLI) was launched in December 2002 on the Advanced Earth Observation Satellite 2 (ADEOS-2). The sensor provides remotely sensed data from the Earth surface in the visible to the thermal infrared part of the spectrum. Since the Earth observation data require careful post-launch calibration, different on-board calibration tools have been integrated in the GLI hardware design. For the VIS-SWIR spectral range a special calibration device allows solar and lamp calibration. In this paper we describe first results on solar calibration of GLI.