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19 September 2013 Determination of technical readiness for an atmospheric carbon imaging spectrometer
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Abstract
The geoCARB sensor uses a 4-channel push broom slit-scan infrared imaging grating spectrometer to measure the absorption spectra of sunlight reflected from the ground in narrow wavelength regions. The instrument is designed for flight at geostationary orbit to provide mapping of greenhouse gases over continental scales, several times per day, with a spatial resolution of a few kilometers. The sensor provides multiple daily maps of column-averaged mixing ratios of CO2, CH4, and CO over the regions of interest, which enables flux determination at unprecedented time, space, and accuracy scales. The geoCARB sensor development is based on our experience in successful implementation of advanced space deployed optical instruments for remote sensing. A few recent examples include the Atmospheric Imaging Assembly (AIA) and Helioseismic and Magnetic Imager (HMI) on the geostationary Solar Dynamics Observatory (SDO), the Space Based Infrared System (SBIRS GEO-1) and the Interface Region Imaging Spectrograph (IRIS), along with sensors under development, the Near Infared camera (NIRCam) for James Webb (JWST), and the Global Lightning Mapper (GLM) and Solar UltraViolet Imager (SUVI) for the GOES-R series. The Tropospheric Infrared Mapping Spectrometer (TIMS), developed in part through the NASA Instrument Incubator Program (IIP), provides an important part of the strong technological foundation for geoCARB. The paper discusses subsystem heritage and technology readiness levels for these subsystems. The system level flight technology readiness and methods used to determine this level are presented along with plans to enhance the level.
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Joseph Mobilia, John B. Kumer, Alice Palmer, Kevin Sawyer, Yalan Mao, Noah Katz, Jack Mix, Ted Nast, Charles S. Clark, Roel Vanbezooijen, Antonio Magoncelli, Ronald A. Baraze, and David L. Chenette "Determination of technical readiness for an atmospheric carbon imaging spectrometer", Proc. SPIE 8867, Infrared Remote Sensing and Instrumentation XXI, 88670L (19 September 2013); https://doi.org/10.1117/12.2029634
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