RRS Discovery D100
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RRS Discovery (74E3) |
| Cruise identifier | D100 |
| Cruise period | 1979-01-31 — 1979-04-04 |
| Status | Completed |
| Port of departure | Cape Town, South Africa |
| Port of return | Cape Town, South Africa |
| Purpose | Research |
| Chief scientist | James Crease (Institute of Oceanographic Sciences Wormley Laboratory) |
| Project | FGGE |
| Ocean/sea areas | |
| General | South Atlantic Ocean |
| Track charts |  |
| Measurements | |
| Physical oceanography | |
| Surface measurements underway (T,S) | Quantity: activity duration in days = 60 |
| Bathythermograph | Quantity: number of profiles = 90 |
| CTD stations | Quantity: number of profiles = 27 |
| CTD stations | Quantity: number of profiles = 10 |
| Current meters | Quantity: number of deployments = 5 Description: 35 days |
| Currents measured from ship drift | Quantity: activity duration in days = 60 |
| Surface drifters/drifting buoys | Quantity: number of deployments = 6 Description: (FGGE buoys.FGGE=First GARP Global Experiment) |
| Chemical oceanography | |
| Oxygen | Quantity: 37 |
| Phosphate | Quantity: 13 |
| Nitrate | Quantity: 13 |
| Biology and fisheries | |
| Primary productivity | Quantity: 13 |
| Phytoplankton pigs (eg chlorophyll, fluorescence) | Quantity: activity duration in days = 60 |
| Phytoplankton | Quantity: 13 |
| Zooplankton | Quantity: 28 |
| Neuston | Quantity: 7 |
| Birds | Quantity: activity duration in days = 60 Description: taxonomy,distribution |
| Mammals and reptiles | Quantity: activity duration in days = 60 Description: taxonomy,distribution |
| Acoustic reflection on marine organisms. | |
| Other biological/fisheries measurement | Quantity: activity duration in days = 60 Description: bioluminescence |
| Other biological/fisheries measurement | Quantity: activity duration in days = 60 Description: deep scattering layers |
| Meteorology | |
| Routine standard measurements | Quantity: activity duration in days = 60 |
| Other meteorological measurements | Quantity: activity duration in days = 30 Description: ice observations |
| Other meteorological measurements | Quantity: number of observations = 30 Description: sea and swell |
| Geology and geophysics | |
| Multi-beam echosounding | Quantity: track kilometres = 14816 |
| Magnetic measurements |
