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Proceedings Paper

Landsat-8 TIRS thermal radiometric calibration status
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Paper Abstract

The Thermal Infrared Sensor (TIRS) instrument is the thermal-band imager on the Landsat-8 platform. The initial onorbit calibration estimates of the two TIRS spectral bands indicated large average radiometric calibration errors, -0.29 and -0.51 W/m2 sr μm or -2.1K and -4.4K at 300K in Bands 10 and 11, respectively, as well as high variability in the errors, 0.87K and 1.67K (1-σ), respectively. The average error was corrected in operational processing in January 2014, though, this adjustment did not improve the variability. The source of the variability was determined to be stray light from far outside the field of view of the telescope. An algorithm for modeling the stray light effect was developed and implemented in the Landsat-8 processing system in February 2017. The new process has improved the overall calibration of the two TIRS bands, reducing the residual variability in the calibration from 0.87K to 0.51K at 300K for Band 10 and from 1.67K to 0.84K at 300K for Band 11. There are residual average lifetime bias errors in each band: 0.04 W/m2 sr μm (0.30K) and -0.04 W/m2 sr μm (-0.29K), for Bands 10 and 11, respectively.

Paper Details

Date Published: 5 September 2017
PDF: 11 pages
Proc. SPIE 10402, Earth Observing Systems XXII, 104021G (5 September 2017); doi: 10.1117/12.2276045
Show Author Affiliations
Julia A. Barsi, NASA Goddard Space Flight Ctr. (United States)
Brian L. Markham, NASA Goddard Space Flight Ctr. (United States)
Matthew Montanaro, Rochester Institute of Technology (United States)
Aaron Gerace, Rochester Institute of Technology (United States)
Simon J. Hook, Jet Propulsion Lab. (United States)
John R. Schott, Rochester Institute of Technology (United States)
Nina G. Raqueno, Rochester Institute of Technology (United States)
Ron Morfitt, USGS/EROS (United States)

Published in SPIE Proceedings Vol. 10402:
Earth Observing Systems XXII
James J. Butler; Xiaoxiong (Jack) Xiong; Xingfa Gu, Editor(s)

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