RRS Discovery D193
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RRS Discovery (74E3) |
| Cruise identifier | D193 |
| Cruise period | 1990-06-30 — 1990-08-01 |
| Status | Completed |
| Port of departure | Barry, United Kingdom |
| Port of return | Barry, United Kingdom |
| Purpose | Research |
| Objectives | 1. To deploy 7 long term moorings on the Spanish Slope.
2. To deploy 1 deep mooring on East Thulean Rise. 3. To deploy 2 short term moorings on the Amorican shelf and 2 deep complex moorings in the Bay of Biscay. 4. To deploy STABLE and 2 bottom mounted ADCP's near the critical point for internal tides on the Amorican slopes. 5. To deploy a number of drogued Argos drifting buoys, some in mesoscale eddies. 6. To measure the productivity of shelf, slope and oceanic waters. 7. To investigate the propagation of internal tides and mixing using ADCP, SeaSoar, Echo Sounders and ship's radar. |
| Chief scientist | Robin D Pingree (Marine Biological Association of the UK) |
| Cruise report |  (1.48 MB) |
| Ocean/sea areas | |
| General | Bay of Biscay North East Atlantic Ocean (limit 40W) |
| Specific | NE Atlantic |
| Track charts |  |
| Measurements | |
| Physical oceanography | |
| Surface measurements underway (T,S) | Quantity: track kilometres = 7408 |
| Surface measurements underway (T,S) | Quantity: number of measurements = 18 Description: temperature measurements |
| Surface measurements underway (T,S) | Quantity: number of samples = 76 Description: salinity samples |
| CTD stations | Quantity: number of profiles = 53 |
| Subsurface temperature and salinity measurements | Quantity: activity duration in hours = 132 Description: SeaSoar |
| Transparency (eg transmissometer) | Quantity: track kilometres = 7408 |
| Current meters | Quantity: number of recoveries = 20 Description: current meters recovered, average duration of measurement 20 days |
| Current meters | Quantity: number of deployments = 43 Description: current meters deployed |
| Current profiler (eg ADCP) | Quantity: number of stations = 3 Description: bottom mounted ADCP |
| Current profiler (eg ADCP) | Quantity: track kilometres = 7408 Description: Shipboard ADCP |
| Chemical oceanography | |
| Nitrate | Quantity: track kilometres = 7408 |
| Nitrite | Quantity: track kilometres = 7408 |
| Biology and fisheries | |
| Primary productivity | Quantity: number of experiments = 5 |
| Phytoplankton pigs (eg chlorophyll, fluorescence) | Quantity: track kilometres = 7408 Description: fluorescence |
| Geology and geophysics | |
| Grab | Quantity: number of samples = 10 |
| Bottom photography | Quantity: number of deployments = 1 |
| Other geological/geophysical measurements | Quantity: number of deployments = 1 Description: STABLE |
