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Corrections to MODIS Terra Calibration and Polarization Trending Derived from Ocean Color ProductsRemotely sensed ocean color products require highly accurate top-of-atmosphere (TOA) radiances, on the order of 0.5% or better. Due to incidents both prelaunch and on-orbit, meeting this requirement has been a consistent problem for the MODIS instrument on the Terra satellite, especially in the later part of the mission. The NASA Ocean Biology Processing Group (OBPG) has developed an approach to correct the TOA radiances of MODIS Terra using spatially and temporally averaged ocean color products from other ocean color sensors (such as the SeaWiFS instrument on Orbview-2 or the MODIS instrument on the Aqua satellite). The latest results suggest that for MODIS Terra, both linear polarization parameters of the Mueller matrix are temporally evolving. A change to the functional form of the scan angle dependence improved the quality of the derived coefficients. Additionally, this paper demonstrates that simultaneously retrieving polarization and gain parameters improves the gain retrieval (versus retrieving the gain parameter only).
Document ID
20140017659
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Meister, Gerhard (NASA Goddard Space Flight Center Greenbelt, MD United States)
Eplee, Robert E. (Science Applications International Corp. Beltsville, MD, United States)
Franz, Bryan A. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Date Acquired
December 22, 2014
Publication Date
August 18, 2014
Subject Category
Earth Resources And Remote Sensing
Report/Patent Number
GSFC-E-DAA-TN17114
Meeting Information
Meeting: Earth Observing Systems Conference
Location: San Diego, CA
Country: United States
Start Date: August 18, 2014
End Date: August 20, 2014
Sponsors: International Society for Optical Engineering
Funding Number(s)
CONTRACT_GRANT: NNG14HZ03C
WBS: WBS 365382.04.23.02
Distribution Limits
Public
Copyright
Public Use Permitted.
Keywords
Polarization
Remote sensing
Calibration

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