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Imager-to-Radiometer In-flight Cross Calibration: RSP Radiometric Comparison with Airborne and Satellite SensorsThis work develops a method to compare the radiometric calibration between a radiometer and imagers hosted on aircraft and satellites. The radiometer is the airborne Research Scanning Polarimeter (RSP), which takes multi-angle, photo-polarimetric measurements in several spectral channels. The RSP measurements used in this work were coincident with measurements made by the Airborne Visible/Infrared Imaging Spectrometer (AVIRIS), which was on the same aircraft. These airborne measurements were also coincident with an overpass of the Landsat 8 Operational Land Imager (OLI). First we compare the RSP and OLI radiance measurements to AVIRIS since the spectral response of the multispectral instruments can be used to synthesize a spectrally equivalent signal from the imaging spectrometer data. We then explore a method that uses AVIRIS as a transfer between RSP and OLI to show that radiometric traceability of a satellite-based imager can be used to calibrate a radiometer despite differences in spectral channel sensitivities. This calibration transfer shows agreement within the uncertainty of both the various instruments for most spectral channels.




Document ID
20160003694
Acquisition Source
Goddard Space Flight Center
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
McCorkel, Joel
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Cairns, Brian
(NASA Goddard Inst. for Space Studies New York, NY United States)
Wasilewski, Andrzej
(TRINNOVIM, LLC New York, NY, United States)
Date Acquired
March 23, 2016
Publication Date
March 8, 2016
Publication Information
Publication: Atmospheric Measurement Techniques
Publisher: Copernicus Publications
Volume: 9
Issue: 3
Subject Category
Earth Resources And Remote Sensing
Report/Patent Number
GSFC-E-DAA-TN30491
Funding Number(s)
CONTRACT_GRANT: NNG12HP07C
Distribution Limits
Public
Copyright
Other
Keywords
calibrating
infrared spectrometers
polarimeters
spectra
airborne equipment
imaging spectrometers
radiometers

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