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Notice to Terra Data Users

Submitted by bwenny on

The reflective solar bands (RSB) of Terra MODIS have experienced relatively large degradation in recent years. The current calibration algorithm used in deriving the Collection 5 LUTS does not completely capture and correct for this degradation, which is both wavelength and angle-of-incidence dependent. Science data products that utilize the shorter wavelength bands, especially Bands 8 (412 nm), 9 (443 nm) 3 (469 nm), 1 (646 nm), and 2 (856 nm) can expect to see an observable impact on data quality. An example of the observed degradation on Terra band 8 and 1 are provided in the attached file.
The proposed calibration algorithm improvements in development for Collection 6 LUTs are expected to significantly reduce these impacts. These LUTs will be put into production after a thorough review and testing process is completed.
Further details are available in the MCST presentation at the Calibration breakout session of the May 2011 MODIS Science Team Meeting (