| A | B | C | |
|---|---|---|---|
1 | Code | Name | Comments/description |
2 | AV | Accepted value | Has been reviewed and looks good |
3 | SVC | Suspicious value - caution | Value appears to be suspect, use with caution |
4 | SVD | Suspicious value - reject | Value is clearly suspect, recommend discarding |
5 | EV | Estimated value | Value has been estimated |
6 | NA | Not available | No value available |
7 | MV | Missing value | No measured value available because of equipment failure, etc. |
8 | LB | Low battery | Sensor battery dropped below a threshold |
9 | CD | Calibration due | Sensor needs to be sent back to the manufacturer for calibration |
10 | CE | Calibration expired | Value was collected with a sensor that is past due for calibration |
11 | IC | Invalid chronology | One or more non‐sequential date/time values |
12 | PV | Persistent value | Repeated value for an extended period |
13 | AR | Above range | Value above a specified upper limit |
14 | BR | Below range | Value below a specified lower limit |
15 | SE | Slope exceedance | Value much greater than the previous value, resulting in an unrealistic slope |
16 | SI | Spatial inconsistency | Value greatly differed from values collected from nearby sensors |
17 | II | Internal inconsistency | Value was inconsistent with another related measurement |
18 | BDL | Below detection limit | Value was below the established detection limit of the sensor |
19 | ADL | Above detection limit | Value was above the established detection limit of the sensor |