NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Monochromatic Measurements of the JPSS-1 VIIRS Polarization SensitivityPolarization sensitivity is a critical property that must be characterized for spaceborne remote sensing instruments designed to measure reflected solar radiation. Broadband testing of the first Joint Polar-orbiting Satellite System (JPSS-1) Visible Infrared Imaging Radiometer Suite (VIIRS) showed unexpectedly large polarization sensitivities for the bluest bands on VIIRS (centered between 400 and 600 nm). Subsequent ray trace modeling indicated that large diattenuation on the edges of the bandpass for these spectral bands was the driver behind these large sensitivities. Additional testing using the National Institute of Standards and Technologies Traveling Spectral Irradiance and Radiance Responsivity Calibrations Using Uniform Sources was added to the test program to verify and enhance the model. The testing was limited in scope to two spectral bands at two scan angles; nonetheless, this additional testing provided valuable insight into the polarization sensitivity. Analysis has shown that the derived diattenuation agreed with the broadband measurements to within an absolute difference of about0.4 and that the ray trace model reproduced the general features of the measured data. Additionally, by deriving the spectral responsivity, the linear diattenuation is shown to be explicitly dependent on the changes in bandwidth with polarization state.
Document ID
20160012262
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
McIntire, Jeff (Science Systems and Applications, Inc. Greenbelt, MD, United States)
Moyer, David (NASA Johnson Space Center Houston, TX United States)
Brown, Steven W. (National Inst. of Standards and Technology Gaithersburg, MD, United States)
Lykke, Keith R. (National Inst. of Standards and Technology Gaithersburg, MD, United States)
Waluschka, Eugene (NASA Goddard Space Flight Center Greenbelt, MD United States)
Oudrari, Hassan (Science Systems and Applications, Inc. Greenbelt, MD, United States)
Xiong, Xiaoxiong (NASA Goddard Space Flight Center Greenbelt, MD United States)
Date Acquired
October 11, 2016
Publication Date
September 12, 2016
Publication Information
Publication: Applied optics
Volume: 55
Issue: 27
Subject Category
Optics
Instrumentation and Photography
Report/Patent Number
GSFC-E-DAA-TN36049
Funding Number(s)
CONTRACT_GRANT: NNG15HQ01C
Distribution Limits
Public
Copyright
Other
Keywords
Monochromatic
JPSS-!VIIRS
Measurements