12 December 2001 Optimization of CERES level 1 data products
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Abstract
The objective of the current research is to minimize the theoretical uncertainty of the CERES ERBE-like level 1 instantaneous filtered and unfiltered radiance data products. The instrument's measured digital counts are converted to a filtered radiance by means of instrument calibration coefficients. The filtered radiance is then converted to an unfiltered radiance with an algorithm that utilizes the instrument's spectral response function. Uncertainties in the calibration sources and the spectral response function of the instrument can negatively affect the quality of the final data products. To reduce this effect, we are seeking to increase our understanding of the relative impact that various instrument and calibration parameters have on the level-1 filtered and unfiltered data products. Results of a statistical study of data products sensitivity to various instrument and calibration parameters are presented. The sensitivity of the level-1 data products to the spectral response of the instrument when viewing non- Planck Earth scenes is also discussed.
© (2001) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ira J. Sorensen, Maria Cristina Sanchez, Kory J. Priestley, J. Robert Mahan, "Optimization of CERES level 1 data products", Proc. SPIE 4540, Sensors, Systems, and Next-Generation Satellites V, (12 December 2001); doi: 10.1117/12.450698; https://doi.org/10.1117/12.450698
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KEYWORDS
Calibration

Black bodies

Optical filters

Sensors

3D modeling

Bolometers

Instrument modeling

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