World Ocean Database / WOD Codes / Definition_of_Quality_Flags

WOD code table: Definition_of_Quality_Flags

(1) FLAGS FOR ENTIRE CAST (AS A FUNCTION OF VARIABLE)
0 accepted cast
1 failed annual standard deviation check
2 two or more density inversions ( Levitus; 1982 criteria )
3 flagged cruise
4 failed seasonal standard deviation check
5 failed monthly standard deviation check
6 failed annual and seasonal standard deviation check
7 bullseye from standard level data or failed annual and monthly standard deviation check
8 failed seasonal and monthly standard deviation check
9 failed annual; seasonal and monthly standard deviation check
(2) FLAGS ON INDIVIDUAL OBSERVATIONS
(a) Depth Flags
0 accepted value
1 duplicates or inversions in recorded depth ( same or less than previous depth )
2 density inversion
(b) Observed Level Flags
0 accepted value
1 range outlier ( outside of broad range check )
2 failed inversion check
3 failed gradient check
4 observed level bullseye flag and zero gradient check
5 combined gradient and inversion checks
6 failed range and inversion checks
7 failed range and gradient checks
8 failed range and questionable data checks
9 failed range and combined gradient and inversion checks
(c) Standard Level Flags
0 accepted value
1 bullseye marker
2 density inversion
3 failed annual standard deviation check
4 failed seasonal standard deviation check
5 failed monthly standard deviation check
6 failed annual and seasonal standard deviation check
7 failed annual and monthly standard deviation check
8 failed seasonal and monthly standard deviation check
9 failed annual; seasonal and monthly standard deviation check
(d) Biological data flags (applied only to Comparable Biological Value - CBV Taxa code 27)
0 accepted value
1 range outlier ( outside of broad range check )
2 questionable value (bullseye flag )