The five ships are equipped with instruments measuring surface hydrography parameters including temperature, conductivity, and sometimes chlorophyll and light transmission. These instruments are connected to the ship’s pumped non-toxic water supply, the same as the one used for the pCO2 measurements. The instruments record continuously except when the ships are approaching dirty waters close to harbours.
The suite of instruments is different on each ship, the table below provides the relevant details.
| Ship |
Hydrographic instrument suite |
Depth of non-toxic water supply inlet metres - below sea surface |
|---|---|---|
| RV Plymouth Quest | Instruments suite specification is not yet available | Unknown at present |
| RV Prince Madog | Sea surface temperature sensor in seaward side of the non-toxic water intake Thermosalinograph Transmissometer (10 cm pathlength) Turner Designs fluorometer | 3.0 |
| RRS James Clark Ross |
SeaBird Electronics, Inc. SBE 45 thermosalinograph Fluorometer | 6.0 |
| RRS James Cook | Instruments suite specification is not yet available | 2.1 |
| RRS Discovery | Falmouth Scientific, Inc. (FSI) thermosalinograph WetLabs fluorometer SeaTech transmissometer (20 cm path length) | 5.0 |
Last updated: June 8, 2015
