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- 1433
RV Cirolana CIR1/76
Cruise summary report
Cruise Info. | |
Ship name (ship code) | RV Cirolana (74CZ) |
Cruise identifier | CIR1/76 |
Cruise period | 1976-01-02 — 1976-01-16 |
Status | Completed |
Port of departure | Grimsby, United Kingdom |
Port of return | Grimsby, United Kingdom |
Purpose | Research |
Objectives | 1. To continue the examination of the distribution of radiocaesium and
plutonium in the Irish Sea and its approaches. 2. To continue the examination of the distribution of radiocaesium in coastal waters of the British Isles. 3. To collect seawater and suspended matter, over a tidal cycle period at 6 stations in the vicinity of BNFL Windscale, at 3 depths in the water column. 4. To collect samples of seabed in the same vicinity for the examination of the concentration of radioactivity of sediment in both the solid and liquid phases, at various depths from the surface layer. 5. To record the gamma count rate, in a selected energy range, from seawater of the Irish Sea, with particular reference to a close spaced grid off the Cumbrian coast. 6. To measure the concentrations of inorganic and total mercury in British Isles Coastal Waters. |
Chief scientist | Douglas F Jefferies (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory) |
Cruise report | (0.20 MB) |
Ocean/sea areas | |
General | North Sea Irish Sea and St. George's Channel |
Track charts | |
Measurements | |
Physical oceanography | |
Surface measurements underway (T,S) | Description: T only |
Water bottle stations | Quantity: number of stations = 128 Description: S surface 37 S bottom |
Chemical oceanography | |
Radioactivity | Description: cont. |
Contamination | |
Suspended matter | Quantity: number of samples = 22 |
Trace metals | Quantity: number of samples = 83 Description: Hg |
Other contaminant measurements | Quantity: number of samples = 128 Description: radioactivity.134Cs,137Cs,238Pu,239Pu & 240Pu at selected stns. |
Biology and fisheries | |
Other biological/fisheries measurement | Quantity: number of samples = 128 Description: monitoring and surveillance |
Geology and geophysics | |
Core - soft bottom | Quantity: number of cores = 8 Description: radioactivity measurements |