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Instrumentation and First Results of the Reflected Solar Demonstration System for the Climate Absolute Radiance and Refractivity ObservatoryThe Climate Absolute Radiance and Refractivity Observatory (CLARREO) mission key goals include enabling observation of high accuracy long-term climate change trends, use of these observations to test and improve climate forecasts, and calibration of operational and research sensors. The spaceborne instrument suites include a reflected solar spectroradiometer, emitted infrared spectroradiometer, and radio occultation receivers. The requirement for the RS instrument is that derived reflectance must be traceable to Sl standards with an absolute uncertainty of <0.3% and the error budget that achieves this requirement is described in previo1L5 work. This work describes the Solar/Lunar Absolute Reflectance Imaging Spectroradiometer (SOLARIS), a calibration demonstration system for RS instrument, and presents initial calibration and characterization methods and results. SOLARIS is an Offner spectrometer with two separate focal planes each with its own entrance aperture and grating covering spectral ranges of 320-640, 600-2300 nm over a full field-of-view of 10 degrees with 0.27 milliradian sampling. Results from laboratory measurements including use of integrating spheres, transfer radiometers and spectral standards combined with field-based solar and lunar acquisitions are presented. These results will be used to assess the accuracy and repeatability of the radiometric and spectral characteristics of SOLARIS, which will be presented against the sensor-level requirements addressed in the CLARREO RS instrument error budget.
Document ID
20120014235
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
McCorkel, Joel
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Thome, Kurtis
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Hair, Jason
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
McAndrew, Brendan
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Jennings, Don
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Rabin, Douglas
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Daw, Adrian
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Lundsford, Allen
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 26, 2013
Publication Date
August 12, 2012
Subject Category
Instrumentation And Photography
Report/Patent Number
GSFC.ABS.6904.2012
Meeting Information
Meeting: SPIE Optics and Photonics 2012
Location: San Diego, CA
Country: United States
Start Date: August 12, 2012
End Date: August 16, 2012
Sponsors: International Society for Optical Engineering
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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