CTD Instrument Description
CTD Unit and Auxillary Sensors
A Sea-Bird 911 plus CTD system was used on cruise JR15006. This was mounted on a 24-way stainless steel rosette frame. The CTD was fitted with the following scientific sensors:
| Sensor | Serial Number | Last calibration date | Instrument Specifications |
|---|---|---|---|
| Digiquartz Pressure | 707 | 2015/06/22 | |
| Primary Temperature | 5766 | 2015/03/18 | Temperature sensor SBE 3P |
| Secondary Temperature | 2705 | 2015/06/10 | SeaBird SBE 3P |
| Primary Conductivity | 2289 | 2015/07/08 | SeaBird SBE 4C |
| Secondary Conductivity* | 2248 | 2015/07/09 | SeaBird SBE 4C |
| Altimeter | 163162 | 2015/06/04 | Tritech PA200 |
| Dissolved Oxygen | 0676 | 2015/06/02 | SeaBird SBE 43 |
| Fluorometer | 088-249 | 2015/05/11 | CTG Aquatracker MKIII |
| Underwater PAR sensor | 7274 | 2013/04/24 | Biosheprical QCP-2300 |
| Transmissometer | CST-846DR | 2015/06/17 | WETLabs C-Star |
In addition to these sensors, a SeaBird SBE35 thermometer (SN # 27735-0024, last calibration date 22 March 2013) and a 300 kHhZ LADCP (SN # 15060) were also attached to the CTD frame.
* Conductivity sensor was replaced during the cruise. First sensor's SN # 2222 and the second SN #2248. First sensor was used up to CTD016 (Series reference 1795727) and the second sensor from CTD017 (Series Reference 1795739) onwards.
