RRS Discovery DY131
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RRS Discovery (74EQ) |
| Cruise identifier | DY131 |
| Cruise period | 2021-05-01 — 2021-06-01 |
| Status | Completed |
| Port of departure | Southampton, United Kingdom |
| Port of return | Southampton, United Kingdom |
| Purpose | Research |
| Objectives | EXport Processes in the Ocean from RemoTe Sensing (EXPORTS) - 2021 North Atlantic Deployment
CTD Summary 112 CTD casts were undertaken with an NMF 24-way Stainless Steel CTD frame with 24 off 20l Niskin water samplers. An additional 7 casts were undertaken with an NMF 24-way Titanium CTD frame with 10l trace metal Niskin water samplers. All instrument serial numbers were checked and all channels of the 9plus underwater unit checked prior to completing the sensors information sheet for DY131. A SBE 43 dissolved oxygen sensor was used to supplement the primary temperature and conductivity sensors all of which were mounted to the 9 plus. The secondary temperature and conductivity sensors were mounted on the vein. Additionally there was a user supplied Sequoia LISST-DEEP mounted on the frame, this was powered from the 9plus and logged internally. There was also a user supplied Hydroptic UVP5 mounted to the centre of the frame, this was independently powered and internally logging. The deepest cast was CTD022 at station A2-C which descended to 2500m. The shallowest cast was TEST01 as stations TEST01 which descended to 30m. For trace metal work on the Titanium CTD, the science party fitted the Niskin water samplers to the Titanium CTD frame just prior to the deployment to limit chances of contamination. For sampling, the Niskins were removed from the frame and carried into the clean lab by the CTD technicians wearing clean gloves. |
| Chief scientist | Craig M Lee (University of Washington Applied Physics Laboratory) |
| Cruise report |  (1.52 MB) |
| Ocean/sea areas | |
| General | Celtic Sea |
| Specific | Porcupine Abyssal Plain |
