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Twenty-Five Years of Landsat Thermal Band CalibrationLandsat-7 Enhanced Thematic Mapper+ (ETM+), launched in April 1999, and Landsat-5 Thematic Mapper (TM), launched in 1984, both have a single thermal band. Both instruments thermal band calibrations have been updated previously: ETM+ in 2001 for a pre-launch calibration error and TM in 2007 for data acquired since the current era of vicarious calibration has been in place (1999). Vicarious calibration teams at Rochester Institute of Technology (RIT) and NASA/Jet Propulsion Laboratory (JPL) have been working to validate the instrument calibration since 1999. Recent developments in their techniques and sites have expanded the temperature and temporal range of the validation. The new data indicate that the calibration of both instruments had errors: the ETM+ calibration contained a gain error of 5.8% since launch; the TM calibration contained a gain error of 5% and an additional offset error between 1997 and 1999. Both instruments required adjustments in their thermal calibration coefficients in order to correct for the errors. The new coefficients were calculated and added to the Landsat operational processing system in early 2010. With the corrections, both instruments are calibrated to within +/-0.7K.
Document ID
20110015246
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Barsi, Julia A. (Science Systems and Applications, Inc. Greenbelt, MD, United States)
Markham, Brian L. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Schoff, John R. (Rochester Inst. of Tech. Rochester, NY, United States)
Hook, Simon J. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Raqueno, Nina G. (Rochester Inst. of Tech. Rochester, NY, United States)
Date Acquired
August 25, 2013
Publication Date
July 25, 2010
Subject Category
Earth Resources And Remote Sensing
Report/Patent Number
GSFC.CPR.4721.2011
Meeting Information
Meeting: International Geoscience and Remote Sensing Symposium (IGARSS)
Location: Honolulu, HI
Country: United States
Start Date: July 25, 2010
End Date: July 30, 2010
Distribution Limits
Public
Copyright
Public Use Permitted.

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