Notation	Name	Description	Status
1	Instantaneous		stable
2	Averaged over 3 minutes or less		stable
3	Averaged over more than 3 minutes, but 6 at the most		stable
4	Averaged over more than 6 minutes, but 12 at the most		stable
5	Instantaneous		stable
6	Averaged over 3 minutes or less		stable
7	Averaged over more than 3 minutes, but 6 at the most		stable
8	Averaged over more than 6 minutes, but 12 at the most		stable
9	Vector or Doppler current profiling method not used		stable
11	1 hour or less		stable
12	More than 1 hour but 2 at the most		stable
13	More than 2 hours but 4 at the most		stable
14	More than 4 hours but 8 at the most		stable
15	More than 8 hours but 12 at the most		stable
16	More than 12 hours but 18 at the most		stable
17	More than 18 hours but 24 at the most		stable
19	Drift method not used		stable
31	Missing value		stable