Radiometric Noise Assessment of the Cross-Track Infrared Sounder on the NOAA-20 Satellite

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dc.contributor.authorTremblay, Denis A.
dc.contributor.authorIturbide-Sanchez, Favio
dc.contributor.authorChen, Yong
dc.contributor.authorBorg, Lori
dc.contributor.authorPredina, Joe
dc.contributor.authorJin, Xin
dc.contributor.authorTobin, David C.
dc.contributor.authorStrow, Larrabee
dc.contributor.authorMooney, Daniel L.
dc.contributor.authorJohnson, Dave
dc.contributor.authorSuwinski, Lawrence
dc.contributor.authorRevercomb, Henry E.
dc.date.accessioned2021-06-25T21:52:38Z
dc.date.available2021-06-25T21:52:38Z
dc.date.issued2021-06-09
dc.description.abstractThe Cross-track Infrared Sounder (CrIS) is a Michelson-type Fourier Transform Spectrometer. The CrIS flight module 2 instrument was launched into orbit on November 18, 2017, onboard the NOAA-20 satellite as part of the United States (US) Joint Polar Satellite System (JPSS). The CrIS instrument measures the top-of-atmosphere upwelling spectral radiance in the thermal infrared (IR) spectrum. These measurements provide critical information for medium-range weather forecasting, and the retrieval of atmospheric profiles of temperature, water vapor, and other trace gases. The instrument noise equivalent radiance differential (NEdN) estimates are used by the weather forecasting systems, the trace gas atmospheric retrieval algorithms, and for trending the health and stability of the instrument over time. The current operational NEdN estimate is calculated using instrument observations from the deep space (DS) view and the internal calibration target (ICT). Two alternative methodologies are described here based on the principal component analysis (PCA) of an ensemble of calibrated Earth scene (ES) spectra. The NEdN calculation methods show that the instrument meets the specifications with a margin for all 27 detectors with an exception of one midwave IR (MWIR) field-of-view (FOV) 9, which is borderline. The PCA analysis shows that warmer ES spectra have higher noise, known as scene shot, for the short-wave IR (SWIR) band. Using the PCA analysis, the NEdN for the long-wave IR FOV 5 is 30% higher than the NEdN calculated by the operational algorithm. Correlated noise is also found due to the effect of the instrument self-apodization correction.en_US
dc.description.urihttps://ieeexplore.ieee.org/abstract/document/9449484en_US
dc.format.extent15 pagesen_US
dc.genreconference papers and proceedingsen_US
dc.identifierdoi:10.13016/m2sgy9-oki7
dc.identifier.citationTremblay, Denis A. et al.; Radiometric Noise Assessment of the Cross-Track Infrared Sounder on the NOAA-20 Satellite; IEEE Transactions on Geoscience and Remote Sensing ( Early Access ), 9 June, 2021; https://doi.org/10.1109/TGRS.2021.3083137en_US
dc.identifier.urihttps://doi.org/10.1109/TGRS.2021.3083137
dc.identifier.urihttp://hdl.handle.net/11603/21836
dc.language.isoen_USen_US
dc.publisherIEEEen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Physics Department Collection
dc.relation.ispartofUMBC Faculty Collection
dc.rightsThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
dc.rightsPublic Domain Mark 1.0*
dc.rightsThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
dc.rights.urihttp://creativecommons.org/publicdomain/mark/1.0/*
dc.titleRadiometric Noise Assessment of the Cross-Track Infrared Sounder on the NOAA-20 Satelliteen_US
dc.typeTexten_US

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