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Proceedings Paper

Improvement in absolute calibration accuracy of Landsat-5 TM with Landsat-7 ETM+ data
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Paper Abstract

The ability to detect and quantify changes in the Earth's environment depends on satellites sensors that can provide calibrated, consistent measurements of Earth's surface features through time. A critical step in this process is to put image data from subsequent generations of sensors onto a common radiometric scale. To evaluate Landsat-5 (L5) Thematic Mapper's (TM) utility in this role, image pairs from the L5 TM and Landsat-7 (L7) Enhanced Thematic Mapper Plus (ETM+) sensors were compared. This approach involves comparison of surface observations based on image statistics from large common areas observed eight days apart by the two sensors. The results indicate a significant improvement in the consistency of L5 TM data with respect to L7 ETM+ data, achieved using a revised Look-Up-Table (LUT) procedure as opposed to the historical Internal Calibrator (IC) procedure previously used in the L5 TM product generation system. The average percent difference in reflectance estimates obtained from the L5 TM agree with those from the L7 ETM+ in the Visible and Near Infrared (VNIR) bands to within four percent and in the Short Wave Infrared (SWIR) bands to within six percent.

Paper Details

Date Published: 22 August 2005
PDF: 12 pages
Proc. SPIE 5882, Earth Observing Systems X, 588209 (22 August 2005); doi: 10.1117/12.620136
Show Author Affiliations
Gyanesh Chander, Science Applications International Corp., USGS EROS (United States)
Brian L. Markham, NASA Goddard Space Flight Ctr. (United States)
Esad Micijevic, Science Applications International Corp., USGS EROS (United States)
Philippe M. Teillet, Canada Ctr. for Remote Sensing (Canada)
Dennis L. Helder, South Dakota State Univ. (United States)

Published in SPIE Proceedings Vol. 5882:
Earth Observing Systems X
James J. Butler, Editor(s)

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