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Estimating Terra MODIS Polarization Effect Using Ocean DataTerra MODIS has been known since pre-launch to have polarization sensitivity, particularly in shortest-wavelength bands 8 and 9. On-orbit reflectance trending of pseudo-invariant sites show a variation in reflectance as a function of band and scan mirror angle of incidence consistent with time-dependent polarization effects from the rotating double-sided scan mirror. The MODIS Characterization Support Team [MCST] estimates the Mueller matrix trending from this variation as observed from a single desert site, but this effect is not included in Collection 6 [C6] calibration. Here we extend the MCSTs current polarization sensitivity monitoring to two ocean sites distributed over latitude to helpestimate the uncertainties in the derived Mueller matrix. The Mueller matrix elements derived for polarization-sensitive Band 8 for a given site are found to be fairly insensitive to surface brdf modeling. The site-to-site variation is a measure of the uncertainty in the Mueller estimation.Results for band 8 show that the polarization correction reduces mirror-side striping by up to 50% and reduces the instrument polarization effect on reflectance time series of an ocean target.
Document ID
Acquisition Source
Goddard Space Flight Center
Document Type
Reprint (Version printed in journal)
External Source(s)
Wald, Andrew E.
(Global Science and Technology, Inc. Greenbelt, MD, United States)
Brinkmann, Jake
(Science Systems and Applications, Inc. Lanham, MD, United States)
Wu, Aisheng
(Science Systems and Applications, Inc. Lanham, MD, United States)
Xiong, Jack
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Date Acquired
April 17, 2017
Publication Date
May 17, 2016
Publication Information
Publication: Proceedings of the Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher: SPIE
Volume: 9827
ISSN: 0277-786X
e-ISSN: 1996-756X
Subject Category
Numerical Analysis
Earth Resources And Remote Sensing
Report/Patent Number
Meeting Information
Meeting: SPIE Ocean Sensing and Monitoring
Location: Baltimore, MD
Country: United States
Start Date: April 19, 2016
End Date: April 20, 2016
Sponsors: International Society for Optical Engineering
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