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Proceedings Paper

Cross-calibration of the Terra MODIS, Landsat 7 ETM+ and EO-1 ALI sensors using near-simultaneous surface observation over the Railroad Valley Playa, Nevada, test site
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Paper Abstract

A cross-calibration methodology has been developed using coincident image pairs from the Terra Moderate Resolution Imaging Spectroradiometer (MODIS), the Landsat 7 (L7) Enhanced Thematic Mapper Plus (ETM+) and the Earth Observing EO-1 Advanced Land Imager (ALI) to verify the absolute radiometric calibration accuracy of these sensors with respect to each other. To quantify the effects due to different spectral responses, the Relative Spectral Responses (RSR) of these sensors were studied and compared by developing a set of "figures-of-merit." Seven cloud-free scenes collected over the Railroad Valley Playa, Nevada (RVPN), test site were used to conduct the cross-calibration study. This cross-calibration approach was based on image statistics from near-simultaneous observations made by different satellite sensors. Homogeneous regions of interest (ROI) were selected in the image pairs, and the mean target statistics were converted to absolute units of at-sensor reflectance. Using these reflectances, a set of cross-calibration equations were developed giving a relative gain and bias between the sensor pair.

Paper Details

Date Published: 5 October 2007
PDF: 12 pages
Proc. SPIE 6677, Earth Observing Systems XII, 66770Y (5 October 2007); doi: 10.1117/12.734292
Show Author Affiliations
Gyanesh Chander, Science Applications International Corp. (United States)
U.S. Geological Survey, Ctr. for Earth Resources Observation and Science (United States)
Amit Angal, Science Systems and Applications, Inc. (United States)
Taeyoung Jason Choi, Science Systems and Applications, Inc. (United States)
David J. Meyer, Science Applications International Corp. (United States)
U.S. Geological Survey, Ctr. for Earth Resources Observation and Science (United States)
Xiaoxiong Jack Xiong, NASA Goddard Space Flight Ctr. (United States)
Philippe M. Teillet, Univ. of Lethbridge (Canada)


Published in SPIE Proceedings Vol. 6677:
Earth Observing Systems XII
James J. Butler; Jack Xiong, Editor(s)

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