| 031021 |
Associated field significance
| Code/Flag Figure |
Description |
Status |
|
0
|
Reserved
|
Operational
|
|
1
|
1-bit indicator of quality
(0 = Good, 1 = Suspect or bad)
|
Operational
|
|
2
|
2-bit indicator of quality
(0 = Good, 1 = Slightly suspect, 2 = Highly suspect, 3 = Bad)
|
Operational
|
|
3-4
|
Reserved
|
Operational
|
|
5
|
8-bit indicator of quality control
(0 = Data checked and declared good; 1 = Data checked and declared suspect; 2 = Data checked and declared aggregated; 3 = Data checked and declared out of instrument range; 4 = Data checked, declared aggregated, and out of instrument range; 5 = Parameter is not measured at the station; 6 = Daily value not provided; 7 = Data unchecked, 8-254 = Reserved; 255 = Missing (QC info not available))
|
Operational
|
|
6
|
4-bit indicator of quality control class according to GTSPP
(0 = Unqualified, 1 = Correct value (all checks passed), 2 = Probably good but value inconsistent with statistics (differ from climatology), 3 = Probably bad (spike, gradient, ... if other tests passed), 4 = Bad value, impossible value (out of scale, vertical instability, constant profile), 5 = Value modified during quality control, 6-7 = Not used (reserved), 8 = Interpolated value, 9 = Missing value)
|
Operational
|
|
7
|
Percentage confidence
|
Operational
|
|
8
|
0 = Not suspected, 1 = Suspected, 2 = Reserved, 3 = Information not required
|
Operational
|
|
9
|
0 = Data present, good, collocated, 1 = Data available but of degraded quality and not used, 2 = No spatiotemporally collocated data available, 3-14 = Not used (reserved), 15 = Missing value
|
Operational
|
|
10-20
|
Reserved
|
Operational
|
|
21
|
1-bit indicator of correction
(0 = Original value, 1 = Substituted/corrected value)
|
Operational
|
|
22-62
|
Reserved for local use
|
Operational
|
|
63
|
Missing value
|
Operational
|
|