RRS Discovery D3_5
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RRS Discovery (74E3) |
| Cruise identifier | D3_5 |
| Cruise period | 1964-06-12 — 1964-07-03 |
| Status | Completed |
| Port of departure | Victoria, Seychelles |
| 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 |
| Track charts | (0.68 MB) |
| Measurements | |
| Physical oceanography | |
| Bathythermograph | Description: hourly observations |
| Water bottle stations | Quantity: number of stations = 42 Description: 15 to the bottom |
| CTD stations | Quantity: number of profiles = 48 Description: temperature-salinity-depth (TSD) |
| Current meters | Quantity: number of profiles = 47 Description: current-shear |
| Neutrally buoyant floats | Quantity: number of deployments = 6 |
| Biology and fisheries | |
| Phytoplankton pigs (eg chlorophyll, fluorescence) | Quantity: number of profiles = 12 Description: chlorophyll |
| Phytoplankton | Quantity: number of hauls = 43 Description: 14 series of vertical net hauls; 13 fine mesh hauls; 16 Indian Ocean standard net hauls |
| Zooplankton | Quantity: number of hauls = 43 Description: 14 series of vertical net hauls; 13 fine mesh hauls; 16 Indian Ocean standard net hauls |
| Neuston | Quantity: number of hauls = 17 Description: Neuston net tows |
| Pelagic fish | Quantity: number of hauls = 3 Description: trawls |
| Meteorology | |
| Routine standard measurements | Description: continuous |
| Geology and geophysics | |
| Single-beam echosounding | Description: continuous |
