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Proceedings Paper

CrIS SDR calibration and validation status and NOAA-STAR related activities
Author(s): Denis A. Tremblay; Yong Han; Yong Chen; Xin Jin; Likun Wang; Quanhua Liu
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Paper Abstract

The Crosstrack Infrared Sounder (CrIS) is a Michelson type Fourier Transform Spectrometer flying on-board the SUOMI NPP satellite that was launched into orbit on October 28th 2011. CrIS measures the Top of Atmosphere (TOA) infrared radiance. Calibration and validation activities at NOAA-STAR includes: 1) The double difference of CrIS field of view (FOV) intercomparison using the Community Radiative Transform Model (CRTM) where the FOV are consistent to 0.05K or better, 2) Simultaneous nadir overpass (SNO) radiance comparison of CrIS with IASI with 0.2K agreement over the window channels,3) Top of atmosphere radiance comparison of the measured with the CRTM with an agreement of 0.4K or better over the window channels, 4) Double difference of CrIS vs IASI with an agreement of 0.3K over the window channels., 5) Long term monitoring and trending of 55 parameters, 6) Geolocation assessment using VIIRS where CrIS now has an estimated accuracy of 1 Km. Calibration and validation of the CrIS SDR is essential because its radiance product is assimilated by the NWP algorithm leading to weather forecasting.

Paper Details

Date Published: 9 November 2012
PDF: 7 pages
Proc. SPIE 8528, Earth Observing Missions and Sensors: Development, Implementation, and Characterization II, 85280F (9 November 2012); doi: 10.1117/12.981340
Show Author Affiliations
Denis A. Tremblay, Science Data Processing Inc. (United States)
Yong Han, National Oceanic and Atmospheric Administration (United States)
Yong Chen, Cooperative Institute for Research in the Atmosphere (United States)
Xin Jin, I.M. Systems Group, Inc. (United States)
Likun Wang, Univ. of Maryland, College Park (United States)
Quanhua Liu, Univ. of Maryland, College Park (United States)


Published in SPIE Proceedings Vol. 8528:
Earth Observing Missions and Sensors: Development, Implementation, and Characterization II
Haruhisa Shimoda; Xiaoxiong Xiong; Changyong Cao; Xingfa Gu; Choen Kim; A. S. Kiran Kumar, Editor(s)

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