92nd American Meteorological Society Annual Meeting (January 22-26, 2012)

Tuesday, 24 January 2012: 11:00 AM
Calibration of the CrIS Sensor on NPP/JPSS
Room 257 (New Orleans Convention Center )
L. Larrabee Strow, Univ. of Maryland Baltimore County, Baltimore, MD; and H. Motteler, P. Schou, and S. Hannon

The Cross-Track Infrared Sounder (CrIS) is NOAA's first operational hyperspectral sounder, flying on the NPP/JPSS platforms. It replaces the HIRS multi-channel radiometer that has been flying for decades. CrIS is a Fourier-transform spectrometer built by ITT, originally under the NPOESS program. We review here the pre-flight calibration of the CrIS sensor with an emphasis on spectral calibration. Several unique features of CrIS (relative to EOS/AIRS and METOP/IASI) will be discussed in context of their their impact on performance and calibration accuracy. We will also review in-orbit calibration/validation procedures and discuss aspects of the CrIS radiance record important for NWP radiance assimilation customers.

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