Enhancements to the crosstrack infrared sounder (CrIS) for improved radiometric accuracy

Ronald J. Glumb; David C. Jordan

doi:10.1117/12.406555

16 November 2000 Enhancements to the crosstrack infrared sounder (CrIS) for improved radiometric accuracy

Ronald J. Glumb, David C. Jordan

Proceedings Volume 4131, Infrared Spaceborne Remote Sensing VIII; (2000) https://doi.org/10.1117/12.406555
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

The Crosstrack Infrared Sounder (CrIS) is one of the key sensors now under development for the National Polar- orbiting Operational Environmental Satellite system (NPOESS) program, which is the follow-on to the current DMSP and POES meteorological satellite systems. CrIS is a interferometric sounding sensor which accurately measures upwelling earth radiances at very high spectral resolution, and uses this data to construct vertical profiles of atmospheric temperature, moisture and pressure. The purpose of this paper is to examine small modifications to the CrIS design that enable it to be used for other applications where improved radiometric uncertainty is required. Modifications include changes to the onboard calibration target and onboard calibration systems, as well as enhancements to ground calibration algorithms that remove additional sources of radiometric error. An assessment is also made of the level of improvement in radiometric uncertainty that can be expected.

Citation Download Citation

Ronald J. Glumb and David C. Jordan "Enhancements to the crosstrack infrared sounder (CrIS) for improved radiometric accuracy", Proc. SPIE 4131, Infrared Spaceborne Remote Sensing VIII, (16 November 2000); https://doi.org/10.1117/12.406555

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