WOD code table: s_40_ref_instrument
| code_name | Reference instrument |
|---|---|
| units | NODC code 0615 |
| 1 | BUCKET |
| 2 | INJECTION, OR UNVERIFIED BUCKET NOTATION, OR UNKNOWN |
| 3 | NANSEN CAST (REVERSING THERMOMETER) |
| 4 | THERMOGRAPH |
| 5 | SPECIAL CALIBRATION THERMOMETER OR EQUIPMENT |
| 6 | BT |
| 7 | STD |
| 9 | HULL CONTACT SENSOR |
| 10 | ENGINE INTAKE |
