RV Cirolana CIR9A/74

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Cirolana (74CZ)
Cruise identifierCIR9A/74
Cruise period1974-11-18 — 1974-11-26
Port of departureGrimsby, United Kingdom
Port of returnBarry, United Kingdom
ObjectivesI. To re-examine the concentration contours of Caesium-137 and Caesium-134 in seawater of the Irish Sea following increased rates of discharge from B.N.F.L., Windscale, Cumberland.
2. To collect samples of seabed from selected stations in the Irish Sea for the examination of the distribution of radioactivity with depth from the surface layer in both the solid and liquid phases.
3. To record the total gamma count rate from seawater of the Irish Sea.
4. To collect seawater samples for the measurement of the weight of the
suspended load at selected stations in the Irish Sea.
5. To collect seawater samples in British Isles coastal waters for
radiocaesium and tritium analyses.
6. To collect fish samples in the western Irish Sea for radiocaesium
Chief scientistDouglas F Jefferies (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
ProjectIrish Sea Budget Study
Cruise reportRV Cirolana CIR9A/74 cruise report ci09a_74.pdf (0.15 MB) 
Ocean/sea areas 
GeneralNorth Sea
Track chartsRV Cirolana CIR9A/74 cruise track — trk1379.html RV Cirolana CIR9A/74 cruise track — trk1379a.html
Physical oceanography 
Surface measurements underway (T,S)Description: T only
Water bottle stationsQuantity: number of stations = 95
Description: S surface 54 S bottom
Geochemical tracers (eg freons)Quantity: track kilometres = 866.736
Description: cont.gamma count rate for surface seawater
Chemical oceanography 
RadioactivityQuantity: number of samples = 95
Description: 137/134Cs
Biology and fisheries 
Pelagic fishQuantity: number of hauls = 1
Geology and geophysics 
GrabQuantity: number of samples = 4
Core - soft bottomQuantity: number of cores = 13