DQRID : D990924.3
Start DateStart TimeEnd DateEnd Time Data Quality Metric
03/06/1999000003/11/19992359Does not affect quality
more
Subject:
TWP/GNDRAD/C1 - Reprocessing Notice (RID 279)
DataStreams:twpgndradC1.00, twpgndrad60sC1.a1
Description:
See below for details of reprocessing that was completed on 20150220.  Original 
DQR category: 3 (Yellow, Suspect).

-----------------------------------------------------------

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
Suggestions: 
Measurements:twpgndradC1.00:
  • Raw data stream - documentation not supported
more
twpgndrad60sC1.a1:
  • irt1_mean
  • irt1_min
  • irt1_max
  • irt1_sd
more

Close this window