MISR abstract
Thome, K., Biggar, S. and Choi, H. J. (2004) Vicarious Calibration of Terra ASTER, MISR, AND MODIS. Proceedings of the SPIE - The International Society for Optical Engineering, 5542(290).
The Advanced Spaceborne Thermal Emission and Reflection and Radiometer (ASTER), Multi-angle Imaging
Spectroradiometer (MISR) and Moderate Resolution Imaging Spectroradiometer (MODIS) are all onboard the Terra
platform. An important aspect of the use of MODIS, and other Earth Science Enterprise sensors, has been the
characterization and calibration of the sensors and validation of their data products. The Remote Sensing Group at the
University of Arizona has been active in this area through the use of ground-based test sites. This paper presents the
results from the reflectance-base approach using the Railroad Valley Playa test site in Nevada for ASTER, MISR, and
MODIS and thus effectively a cross-calibration between all three sensors. The key to the approach is the measurement
of surface reflectance over a 1-km2 area of the playa and results from this method shows agreement with MODIS to better
than 5%. The paper examines biases between ASTER and the other two sensors in the VNIR due to uncertainties in the
onboard calibrator for ASTER and in the SWIR due to an optical crosstalk effect.