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Proceedings Paper

Vicarious calibration of Terra ASTER, MISR, and MODIS
Author(s): Kurtis J. Thome; Stuart F. Biggar; Hyun Joo Choi
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Paper Abstract

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.

Paper Details

Date Published: 26 October 2004
PDF: 10 pages
Proc. SPIE 5542, Earth Observing Systems IX, (26 October 2004); doi: 10.1117/12.559942
Show Author Affiliations
Kurtis J. Thome, Optical Sciences Ctr./Univ. of Arizona (United States)
Stuart F. Biggar, Optical Sciences Ctr./Univ. of Arizona (United States)
Hyun Joo Choi, Optical Sciences Ctr./Univ. of Arizona (United States)

Published in SPIE Proceedings Vol. 5542:
Earth Observing Systems IX
William L. Barnes; James J. Butler, Editor(s)

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