抄録
The field campaign for the vicarious calibration of ASTER/VNIR and SWIR was conducted at Tsukuba test site on December 13 and 14 1997. A comparison of the measured surface reflectance of the grass field and asphalt at the test site, optical depth as well as Top of Atmosphere (ToA) radiance was made among four institutes, University of Arizona, Geophysical Survey of Japan, Kanazawa Institute of Technology and Saga University. Approimately 8% of descrepancy on the mesured reflectance is found among the institutes while about 3% of the estimated optical depth and around 2% of the estimated ToA radiance are also found. Further improvement on the surface reflectance measurement, in particular, is highly required.
