Contents
| Notation | Name | Description | Status |
|---|---|---|---|
| c-15 | Physical quantities | WMO No. 306 Vol I.2 Common Code-table C-15 'Physical quantiti... | deprecated |
| centre | WMO No. 306 Centres | superseded | |
| nil | Code Table D-1: Nil reasons | Nil-reason terms are used to provide an explanation for recor... | stable |
| observation-type | Observation and measurement types | stable | |
| quantity-kind | Code Table D-2: Physical quantity kinds | WMO No. 306 Vol I.3 Common Code-table D-2, Physical quantity ... | stable |
| unit | Code Table C-6: List of units for TDCFs | WMO No. 306 Vol I.2 Common Code-table C-6 List of units for T... | stable |