James Clarke Ross Cruise AMT12 CTD Instrumentation for the stainless steel rig
Two different CTD frames were used - a stainless steel frame and a titanium frame used for trace metal sampling. This document is for the instrumentation on the stainless steel rig.
Stainless Steel
The CTD unit was a Sea-Bird Electronics 911 plus system, with dissolved oxygen sensor. The CTD was fitted with a transmissometer and a fluorometer. All instruments were attached to a Sea-Bird SBE 32 carousel. The table below lists more detailed information about the various sensors.
| Sensor | Model | Serial Number | Calibration | Comments |
|---|---|---|---|---|
| Pressure transducer | Digiquartz temperature compensated pressure sensor | 83008 | 09/01/2001 | - |
| Conductivity sensor 1 | SBE 4C | 2637 | 13/09/2002 | - |
| Conductivity sensor 2 | SBE 4C | 2407 | 13/09/2002 | - |
| Temperature sensor 1 | SBE 3P | 2919 | 14/09/2002 | - |
| Temperature sensor 2 | SBE 3P | 2758 | 14/09/2002 | - |
| Dissolved oxygen | SBE 43 | 43B-0363 | 06/02/2003 | - |
| Transmissometer | Chelsea MkII Alphatracka | 161-2642-03 | 05/09/1996 | 0.25 m path |
| Fluorometer | Chelsea MkIII Aquatracka | 088-242 | 28/04/2001 | - |
Change of sensors during cruise: None reported.
Sampling device
Rosette sampling system equipped with 24 x 20 l sampling bottles (manufactured by Ocean Test Equipment Inc.).
