VNIR and SWIR transfer radiometers developed at NRLM for preflight laboratory cross-calibration

One purpose of preflight laboratory cross-calibration is to avoid the incorrect setting of instrument dynamic range due to calibration mistakes at individual instrument manufacturers. A second purpose is to make corrections of instrument responsivities to have consistent radiance scales among instruments. A third reason is to clarify the state of the art in the absolute responsivity determination of VIS/NIR and SWIF instruments in the EOS era. And fourth is the purpose of improving the preflight calibration accuracy if necessary to meet the EOS requirement.