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

Tremblay, Denis A.; Iturbide-Sanchez, Favio; Chen, Yong; Borg, Lori; Predina, Joe; Jin, Xin; Tobin, David C.; Strow, Larrabee; Mooney, Daniel L.; Johnson, Dave; Suwinski, Lawrence; Revercomb, Henry E.

doi:10.1109/tgrs.2021.3083137

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

2022
By Tremblay, Denis A. ; Iturbide-Sanchez, Favio ; Chen, Yong ; ...
Source: IEEE Transactions on Geoscience and Remote Sensing, 60, 1-15

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Journal Title:

IEEE Transactions on Geoscience and Remote Sensing
Personal Author:

Tremblay, Denis A. ; Iturbide-Sanchez, Favio ; Chen, Yong ; Borg, Lori ; Predina, Joe ; ... More +

Tremblay, Denis A. ; Iturbide-Sanchez, Favio ; Chen, Yong ; Borg, Lori ; Predina, Joe ; Jin, Xin ; Tobin, David C. ; Strow, Larrabee ; Mooney, Daniel L. ; Johnson, Dave ; Suwinski, Lawrence ; Revercomb, Henry E. Less -
NOAA Program & Office:

NESDIS (National Environmental Satellite, Data, and Information Service) ; STAR (Center for Satellite Applications and Research) ; CIMSS (Cooperative Institute for Meteorological Satellite Studies)

NESDIS (National Environmental Satellite, Data, and Information Service) ; STAR (Center for Satellite Applications and Research) ; CIMSS (Cooperative Institute for Meteorological Satellite Studies) Less -
Description:

The 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.
Source:

IEEE Transactions on Geoscience and Remote Sensing, 60, 1-15
DOI:

https://doi.org/10.1109/tgrs.2021.3083137
ISSN:

0196-2892;1558-0644;
Format:

PDF
Publisher:

Institute of Electrical and Electronics Engineers (IEEE)
Document Type:

Journal Article
Funding:

Grant no. NA20NES4320003
Rights Information:

Accepted Manuscript
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Submitted
Main Document Checksum:

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urn:sha-512:deefe7a9a4b224cf6953d0458cbaf10db67de22973c70e18e2ef50f1d96d5bcb0577d7282ce4606b10a3f841d2d47ed77a126568d4e3e401dcc8131d6c19f424
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Radiometric Noise Assessment of the Cross-Track Infrared Sounder on the NOAA-20 Satellite

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