Share Email Print
cover

Proceedings Paper

Landsat-7 ETM+ radiometric calibration status
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Now in its 17th year of operation, the Enhanced Thematic Mapper + (ETM+), on board the Landsat-7 satellite, continues to systematically acquire imagery of the Earth to add to the 40+ year archive of Landsat data. Characterization of the ETM+ on-orbit radiometric performance has been on-going since its launch in 1999. The radiometric calibration of the reflective bands is still monitored using on-board calibration devices, though the Pseudo-Invariant Calibration Sites (PICS) method has proven to be an effective tool as well. The calibration gains were updated in April 2013 based primarily on PICS results, which corrected for a change of as much as -0.2%/year degradation in the worst case bands. A new comparison with the SADE database of PICS results indicates no additional degradation in the updated calibration. PICS data are still being tracked though the recent trends are not well understood. The thermal band calibration was updated last in October 2013 based on a continued calibration effort by NASA/Jet Propulsion Lab and Rochester Institute of Technology. The update accounted for a 0.036 W/m2 sr μm or 0.26K at 300K bias error. The updated lifetime trend is now stable to within +/- 0.4K.

Paper Details

Date Published: 19 September 2016
PDF: 12 pages
Proc. SPIE 9972, Earth Observing Systems XXI, 99720C (19 September 2016); doi: 10.1117/12.2238625
Show Author Affiliations
Julia A. Barsi, NASA Goddard Space Flight Ctr. (United States)
Brian L. Markham, NASA Goddard Space Flight Ctr. (United States)
Jeffrey S. Czapla-Myers, College of Optical Sciences, The Univ. of Arizona (United States)
Dennis L. Helder, South Dakota State Univ. (United States)
Simon J. Hook, Jet Propulsion Lab. (United States)
John R. Schott, Rochester Institute of Technology (United States)
Md. Obaidul Haque, Stinger Ghaffarian Technologies, Inc. (United States)


Published in SPIE Proceedings Vol. 9972:
Earth Observing Systems XXI
James J. Butler; Xiaoxiong (Jack) Xiong; Xingfa Gu, Editor(s)

© SPIE. Terms of Use
Back to Top