Table 4 Quality control codes. Specific details of the quality control process are in the text.

Good

0

—

Data has passed all the quality controls

Missing

1

1

There is no record available for the 15-minute aggregation period.

Below range

2

2

Data value is below the expected range

Above range

4

3

Data value is above the expected range

Outlier

8

4

Data value deviate excessively from the mean of the values from the same sensor during a 30 days window.

Temporarily Inconsistent

16

5

Difference between consecutive records of a given sensor highly deviates from the mean of such differences during a 30 days window.

Spatially Inconsistent

32

6

Data value is responsible for an anomalous high spatial standard deviation in that aggregation time, as compared to the mean spatial standard deviation of the records within a window of 30 days.

Masts lifted

64

7

Any data within the time window covering from 60 minutes before the irrigation period to 60 minutes after.

Manually flagged

128

8

Data flagged after manual inspection. Mostly due to periods of anomalous nearly constant values.