Landsat-8 Operational Land Imager Radiometric Calibration and Stability

Remote Sensing

Brian Markham¹  Julia Barsi⁵  Geir Kvaran³  Lawrence Ong⁵  Edward Kaita⁵  Stuart Biggar⁶  Jeffrey Czapla-Myers⁶  Nischal Mishra²  Dennis Helder²  James C. Storey⁴ 

[1] Biospheric Sciences Laboratory, Code 618, NASA/GSFC, Greenbelt, MD 20771, USA;College of Engineering, South Dakota State University, Brookings, SD 57007, USA; E-Mails:;Ball Aerospace & Technologies Corp., 1600 Commerce Street, Boulder, CO 80301, USA; E-Mail:;id="af1-remotesensing-06-12275">1Biospheric Sciences Laboratory, Code 618, NASA/GSFC, Greenbelt, MD 20771, U;Science Systems and Applications, Inc., Code 618, NASA/GSFC, Greenbelt, MD 20771, USA; E-Mails:;Remote Sensing Group, College of Optical Sciences, University of Arizona, 1630 E University Blvd, Tucson, AZ 85721, USA; E-Mails:

关键词: Landsat;    radiometry;    calibration;   

DOI  :  10.3390/rs61212275

来源: mdpi

【 摘 要 】

The Landsat-8 Operational Land Imager (OLI) was radiometrically calibrated prior to launch in terms of spectral radiance, using an integrating sphere source traceable to National Institute of Standards and Technology (NIST) standards of spectral irradiance. It was calibrated on-orbit in terms of reflectance using diffusers characterized prior to launch using NIST traceable standards. The radiance calibration was performed with an uncertainty of ~3%; the reflectance calibration to an uncertainty of ~2%. On-orbit, multiple calibration techniques indicate that the sensor has been stable to better than 0.3% to date, with the exception of the shortest wavelength band, which has degraded about 1.0%. A transfer to orbit experiment conducted using the OLI’s heliostat-illuminated diffuser suggests that some bands increased in sensitivity on transition to orbit by as much as 5%, with an uncertainty of ~2.5%. On-orbit comparisons to other instruments and vicarious calibration techniques show the radiance (without a transfer to orbit adjustment), and reflectance calibrations generally agree with other instruments and ground measurements to within the uncertainties. Calibration coefficients are provided with the data products to convert to either radiance or reflectance units.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.