FRV Explorer 3A/77
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | FRV Explorer (74EX) |
| Cruise identifier | 3A/77 |
| Cruise period | 1977-04-13 — 1977-04-15 |
| Status | Completed |
| Port of departure | Aberdeen, United Kingdom |
| Port of return | Aberdeen, United Kingdom |
| Purpose | Research |
| Objectives | To study the horizontal and vertical variability of salinity, temperature, chlorophyll, nitrate and zooplankton along a line from Rattray Head to Fladen
Severe weather conditions and time limitations prevented a course along the return line to Rattray from being maintained. Instruments were run continuously throughout, monitoring the pumped water supply from 3 m depth. ''Decca'' positions were recorded half hourly. |
| Chief scientist | I E Baird (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory) |
| Cruise report |  (1.32 MB) |
| Ocean/sea areas | |
| General | North Sea |
| Specific | Rattray Head, Fladen |
| Track charts |  |
| Measurements | |
| Physical oceanography | |
| Surface measurements underway (T,S) | Description: Temperatures at 3 m were between 5.8 degrees and 6.5 degrees. |
| Water bottle stations | Quantity: number of stations = 2 |
| Chemical oceanography | |
| Nitrate | Description: surface nitrates,continuous |
| Nitrate | Quantity: 12 |
| Nitrite | Quantity: 12 |
| Biology and fisheries | |
| Phytoplankton pigs (eg chlorophyll, fluorescence) | Quantity: 40 Description: also cont. surface |
| Phytoplankton | Quantity: 10 Description: distribution |
| Gear research |
