Ground-reference calibration of Landsat-7 ETM+

K. J. Thome, J. H. LaMarr, Stuart F Biggar, A. S. Lopez

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations


Ground-reference techniques for the Enhanced Thematic Mapper Plus (ETM+) on Landsat 7 are described. The techniques are similar to those used for many years for Landsat-5 Thematic Mapper (TM). Recent results with the Landsat-5 TM are presented, including comparisons with hyperspectral, airborne imaging data. These results show that the Landsat sensor has remained stable within the 5% uncertainty of the ground-reference methods for the last five years. The airborne imagery is also used to show uncertainties due to registration errors, spectral differences, and spatial resolution differences in cross-comparison techniques planned for Earth Observing System sensors. In addition to the use of the traditional methods and test sites, a smaller test site local to the University of Arizona area is being evaluated for use with ETM+. This site, while not as bright, spatially-uniform and large as typical sites, allows more frequent calibrations and hopefully a better understanding of the calibration as a function of time. The selection of the test site, its properties, and example results of calibration of Landsat-5 TM are presented.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSociety of Photo-Optical Instrumentation Engineers
Number of pages9
Publication statusPublished - 1999
EventSensors, Systems, and Next-Generation Satellites III - Florence, Italy
Duration: Sep 20 1999Sep 23 1999


OtherSensors, Systems, and Next-Generation Satellites III
CityFlorence, Italy


ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Thome, K. J., LaMarr, J. H., Biggar, S. F., & Lopez, A. S. (1999). Ground-reference calibration of Landsat-7 ETM+. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 3870, pp. 234-242). Society of Photo-Optical Instrumentation Engineers.