| Description: | See below for details of reprocessing that was completed on 20150220. Original
DQR category: 3 (Yellow, Suspect).
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The GNDRAD datalogger configuration for the IRT was changed such that the
calibration factors did not match the output of the IRT.
During the five days or so when the configurations of the data logger and
the IRT did not match, the logger applied the following incorrect scale
factor and offset to the IRT voltage output:
(1) irt(C) = irt(raw)*25 - 50.
It should have used
(2) irt(C) = irt(raw)*60 + 0.
Therefore, data users can correct the values produced by the logger
(variables irt1_max, irt1_mean, irt1_min), use
(3) irt(C) = irt1*2.4 + 120 |