RRS Discovery D3_2
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RRS Discovery (74E3) |
| Cruise identifier | D3_2 |
| Cruise period | 1964-03-07 — 1964-04-05 |
| Status | Completed |
| Port of departure | Aden, Yemen |
| Port of return | Port Louis, Mauritius |
| Purpose | Research |
| Objectives | To complete its part of the UK contribution to the International Indian Ocean Expedition, Discovery occupied 291 water sampling stations in the Indian Ocean in 154 days at sea. |
| Chief scientist | John C Swallow (National Institute of Oceanography) |
| Project | International Indian Ocean Expedition |
| Cruise report |  (0.63 MB) |
| Ocean/sea areas | |
| General | Indian Ocean Gulf of Aden |
| Track charts | (0.68 MB) |
| Measurements | |
| Physical oceanography | |
| Surface measurements underway (T,S) | Quantity: number of stations = 3 |
| Water bottle stations | Quantity: number of stations = 60 Description: 33 to the bottom |
| Subsurface temperature and salinity measurements | Quantity: number of stations = 3 |
| Current meters | Quantity: number of profiles = 80 Description: current-shear measurements |
| Neutrally buoyant floats | Quantity: number of deployments = 11 Description: 14 to 62 hours |
| Chemical oceanography | |
| Oxygen | Quantity: number of stations = 3 |
| Phosphate | Quantity: number of stations = 3 |
| Nitrate | Quantity: number of stations = 3 |
| Silicate | Quantity: number of stations = 3 |
| Biology and fisheries | |
| Phytoplankton pigs (eg chlorophyll, fluorescence) | Quantity: number of profiles = 22 Description: chlorophyll |
| Zooplankton | Quantity: number of samples = 6 Description: depth samples for bacteriological analysis |
| Zooplankton | Quantity: number of hauls = 24 Description: vertical plankton and fine mesh net hauls |
| Neuston | Quantity: number of hauls = 38 Description: 15-minute tow with Neuston net |
| Pelagic fish | Quantity: number of hauls = 7 Description: Isaac-Kidd trawls |
| Pelagic fish | Quantity: number of hauls = 11 Description: Indian Ocean standard net hauls |
