Description: | See below for details of reprocessing that was completed on 20150220. Original
DQR category: 4 (Red, Incorrect).
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For reasons not entirely understood the MFRSR AOD Value Added Product began to experience
infrequent but serious data corruption issues. This is evident in the data files from
PVC as irradiance fields, calibrations, and AODs taking nonsense values sometimes NaN,
Inf, or other values orders of magnitude out of bounds with normal behavior. The behavior
is sometimes abrupt with drastic changes observed from one day to the next, but not
within a given day. This behavior was not reproducible when reprocessing on the development
system.
We have developed a new version of the MFRSR AOD Value Added Product using a different
library suite and have confirmed successful reproduction of the existing product when the
existing product was not corrupt, and consistent replacement of the corrupt periods with
reliable results. |