WOD code table: s_20_wave_period
| code_name | Wave Period |
|---|---|
| units | WMO code 3155 |
| 0 | 20 OR 21 SECONDS |
| 1 | OVER 21 SECONDS |
| 2 | 5 SECONDS OR LESS |
| 3 | 6 OR 7 SECONDS |
| 4 | 8 OR 9 SECONDS |
| 5 | 10 OR 11 SECONDS |
| 6 | 12 OR 13 SECONDS |
| 7 | 14 OR 15 SECONDS |
| 8 | 16 OR 17 SECONDS |
| 9 | 18 OR 19 SECONDS |
| 10 | CALM OR PERIOD NOT DETERMINED |
