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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 hauls = 24 Description: vertical plankton and fine mesh net hauls |
Zooplankton | Quantity: number of samples = 6 Description: depth samples for bacteriological analysis |
Neuston | Quantity: number of hauls = 38 Description: 15-minute tow with Neuston net |
Pelagic fish | Quantity: number of hauls = 11 Description: Indian Ocean standard net hauls |
Pelagic fish | Quantity: number of hauls = 7 Description: Isaac-Kidd trawls |