Planned maintenance — 18th January 2018 12:00 to 22nd January 2018 09:00 [more]

Cruise inventory

RV Cirolana CIR1/76

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Cirolana (74CZ)
Cruise identifierCIR1/76
Cruise period1976-01-02 — 1976-01-16
Port of departureGrimsby, United Kingdom
Port of returnGrimsby, United Kingdom
Objectives1. 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 scientistDouglas F Jefferies (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
Cruise reportRV Cirolana CIR1/76 cruise report ci01_76.pdf — access key 'C' (0.20 MB) 
Ocean/sea areas 
GeneralNorth Sea
Irish Sea and St. George's Channel
Track chartsRV Cirolana CIR1/76 cruise track — trk1697.html
Physical oceanography 
Surface measurements underway (T,S)Description: T only
Water bottle stationsQuantity: number of stations = 128
Description: S surface 37 S bottom
Chemical oceanography 
RadioactivityDescription: cont.
Suspended matterQuantity: number of samples = 22
Trace metalsQuantity: number of samples = 83
Description: Hg
Other contaminant measurementsQuantity: number of samples = 128
Description: radioactivity.134Cs,137Cs,238Pu,239Pu & 240Pu at selected stns.
Biology and fisheries 
Other biological/fisheries measurementQuantity: number of samples = 128
Description: monitoring and surveillance
Geology and geophysics 
Core - soft bottomQuantity: number of cores = 8
Description: radioactivity measurements