Paper
8 April 2003 Intercomparison of ETM+, MODIS, and SeaWiFS using a land test site
Author Affiliations +
Proceedings Volume 4881, Sensors, Systems, and Next-Generation Satellites VI; (2003) https://doi.org/10.1117/12.463005
Event: International Symposium on Remote Sensing, 2002, Crete, Greece
Abstract
The Remote Sensing Group at the University of Arizona has recently shown the successful use of a cross-comparison approach between the high spatial resolution sensor Enhanced Thematic Mapper Plus (ETM+) on the Landsat-7 platform and the 1-km footprint of the Moderate Resolution Imaging Spectroradiometer (MODIS). This work showed that these two sensors compared to better than 5% in solar reflective bands not affected by atmospheric absorption. In this paper, the work is extended to include the 1-km spatial resolution sensor SeaWiFS as part of a three-way comparison. The method described here relies on data ground-based reflectance data to estimate the surface reflectance in the MODIS and SeaWiFS bands based on surface reflectance data derived from ETM+. The cross-comparison takes into account changes in solar zenith angle due to the time separation in overpass times of the three sensors and the differing view angles between SeaWiFS and the other two sensors (MODIS and ETM+, while 40 minutes apart view the test site with the same view angle). Also included are corrections due to the spectral differences between the sensors. Results show that the at-sensor reflectance agrees to better than 4% in the solar reflective for bands not affected by atmospheric absorption and view angles out to 35 degrees.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Kurtis J. Thome, Robert A. Barnes, and Gene C. Feldman "Intercomparison of ETM+, MODIS, and SeaWiFS using a land test site", Proc. SPIE 4881, Sensors, Systems, and Next-Generation Satellites VI, (8 April 2003); https://doi.org/10.1117/12.463005
Lens.org Logo
CITATIONS
Cited by 8 scholarly publications.
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Sensors

Reflectivity

MODIS

Calibration

Spatial resolution

Earth observing sensors

Landsat

RELATED CONTENT


Back to Top