RRS Discovery D139
Cruise summary report
| Cruise Info. | |||||
| Ship name (ship code) | RRS Discovery (74E3) | ||||
| Cruise identifier | D139 | ||||
| Cruise period | 1983-07-12 — 1983-08-03 | ||||
| Status | Completed | ||||
| Port of departure | Funchal, Portugal | ||||
| Port of return | Dakar, Senegal | ||||
| Objectives | The objectives of this cruise were to:
(1) To undertake a near-bottom float dispersion experiment at a depth of around 4500m 160 miles west of Madeira supported by CTD stations and a bathymetric survey. (2) To deploy near-bottom instruments including a VACM/camera tripod, BENCAT (benthic currents and temperatures) and an IOS Bidston tide gauge. (3) To study east Atlantic deep circulation by working a N-S hydrographic section along 24W between 29N and 24N and a hydrographic section between 24N, 24W and 15N, 17W. All objectives were achieved. | ||||
| Chief scientist | Alan J Elliott (University of Wales, Bangor School of Ocean Sciences) | ||||
| Cruise report |  (0.51 MB) | ||||
| Ocean/sea areas | |||||
| General | North East Atlantic Ocean (limit 40W) | ||||
| Specific | N.E. Atlantic | ||||
| Track charts |  | ||||
| Measurements | |||||
| Physical oceanography | |||||
| CTD stations | Quantity: number of stations = 40 | ||||
| Transparency (eg transmissometer) | Quantity: number of stations = 40 | ||||
| Current meters | Quantity: number of recoveries = 1 Description: No.recovered;8 days - see G08 for details | ||||
| Neutrally buoyant floats | Quantity: number of deployments = 9 | ||||
| Meteorology | |||||
| Routine standard measurements | |||||
| Geology and geophysics | |||||
| Bottom photography | Quantity: number of deployments = 1 Description: VACM and camera 32'21.4'N,20'13.3'W at 4690m | ||||
| Multi-beam echosounding | Quantity: track kilometres = 1482 | ||||
| Data held at BODC | Get data | ||||
| Series/Profiles | |||||
| 38 CTD/STD cast | Transmittance and attenuance of the water column Salinity of the water column Temperature of the water column Vertical spatial coordinates Dissolved oxygen parameters in the water column Transmittance and attenuance of the water column Salinity of the water column Temperature of the water column Vertical spatial coordinates Dissolved oxygen parameters in the water column
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