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Remote Sens. 2014, 6(12), 12619-12638; doi:10.3390/rs61212619

Radiometric Cross Calibration of Landsat 8 Operational Land Imager (OLI) and Landsat 7 Enhanced Thematic Mapper Plus (ETM+)

1
Engineering-Office of Research, South Dakota State University (SDSU), Brookings, SD 57007, USA
2
SGT, Inc., Contractor to U. S. Geological Survey (USGS) Earth Resources Observation and Science Center (EROS), Sioux Falls, SD 57198, USA
3
Biospheric Sciences Branch, Code 618, National Aeronautics and Space Administration Goddard Space Flight Centre (NASA/GSFC), Greenbelt, MD 20771, USA
*
Author to whom correspondence should be addressed.
Received: 1 August 2014 / Revised: 4 December 2014 / Accepted: 5 December 2014 / Published: 16 December 2014
(This article belongs to the Special Issue Landsat-8 Sensor Characterization and Calibration)
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Abstract

This study evaluates the radiometric consistency between Landsat-8 Operational Land Imager (OLI) and Landsat 7 Enhanced Thematic Mapper Plus (ETM+) using cross calibration techniques. Two approaches are used, one based on cross calibration between the two sensors using simultaneous image pairs, acquired during an underfly event on 29–30 March 2013. The other approach is based on using time series of image statistics acquired by these two sensors over the Libya 4 pseudo invariant calibration site (PICS) (+28.55°N, +23.39°E). Analyses from these approaches show that the reflectance calibration of OLI is generally within ±3% of the ETM+ radiance calibration for all the reflective bands from visible to short wave infrared regions when the ChKur solar spectrum is used to convert the ETM+ radiance to reflectance. Similar results are obtained comparing the OLI radiance calibration directly with the ETM+ radiance calibration and the results in these two different physical units (radiance and reflectance) agree to within ±2% for all the analogous bands. These results will also be useful to tie all the Landsat heritage sensors from Landsat 1 MultiSpectral Scanner (MSS) through Landsat-8 OLI to a consistent radiometric scale. View Full-Text
Keywords: Operational Land Imager (OLI); Landsat; ETM+; PICS; cross-calibration; Spectral Band Adjustment Factor (SBAF) Operational Land Imager (OLI); Landsat; ETM+; PICS; cross-calibration; Spectral Band Adjustment Factor (SBAF)
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Mishra, N.; Haque, M.O.; Leigh, L.; Aaron, D.; Helder, D.; Markham, B. Radiometric Cross Calibration of Landsat 8 Operational Land Imager (OLI) and Landsat 7 Enhanced Thematic Mapper Plus (ETM+). Remote Sens. 2014, 6, 12619-12638.

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