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Instrument Description for DY029 Titanium Steel Frame CTD

CTD Unit and Auxiliary Sensors

The CTD unit comprised a Sea-Bird Electronics (SBE) 9 plus underwater unit, an SBE 11 plus deck unit, a NOC-S titanium frame 24-way frame and 24 10 L OTE Water Samplers; all of which were mounted on a stainless steel 24-way CTD frame. Attached to the CTD were two SBE 3P temperature sensors, two SBE 4C conductivity sensors, one Paroscientific Digiquartz pressure sensor, one SBE 43 dissolved oxygen sensor, two CTD 2-π Underwater PAR sensors, one WETLabs BBRTD light scattering sensor, one Benthos 916T altimeter one CTG Aquatracka MKIII fluorometer, one CTG Alphatracka MKII transmissometer and one Workhorse Monitor 300 Khz LADCP.

Sensor unit Model Serial number Full specification Calibration dates (YYYY/MM/DD) Comments
CTD underwater unit SBE 9 plus 09P-77801-1182 (Ti) SBE 9 plus 2014-03-12 -
CTD deck unit SBE 11 plus 11P-34173-0676 - 2015-01-06 -
Carousel NOCS Stainless steel 24-way frame SBE CTD TITA1 - - -
Pressure sensor Paroscientific Digiquartz 129735 Paroscientific Digiquartz 2014-03-12 -
Temperature sensor SBE 3P 3P-4593(Ti) SBE 03P 2014-07-03 -
Temperature sensor SBE 3P 3P-5494 (Ti) - 2014-05-06 -
Conductivity senor SBE 4C 4C-2164 (Ti) SBE 04C 2014-05-06 -
Conductivity sensor SBE 4C 4C-4140 (Ti) - 2014-05-06 -
Dissolved oxygen sensor SBE 43 43-0862 SBE 43 2014-07-04 -
Altimeter Benthos PSA 916T 62679 Benthos Altimeter - -
Irradiance sensor (DWIRR) CTG 2-π PAR 02 (Ti) CTG 2-π PAR 2013-05-07 Measuring downwelling irradiance
Irradiance sensor (UWIRR) CTG 2-π PAR 04 (Ti) - 2013-11-21 Measuring upwelling irradiance
Light scattering sensor WETLabs BBRTD BBRTD-758R WETLabs BBRTD 2013-06-03 -
Fluorometer Chelsea MKIII Aquatracka 088244 Chelsea MKII Aquatracka 2015-01-21 -
Transmissometer Chelsea MKII Alphatracka - 25 cm path 161049 Alphatracka MKII 2014-08-06 -
LADCP Teledyne Workhorse Monitor 300 Khz LADCP 13400 (Ti) Workhorse Monitor LADCP - -