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

Cruise inventory

RV Corella 11/75

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Corella (74CX)
Cruise identifier11/75
Cruise period1975-07-10 — 1975-07-24
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
Objectives1. To continue the examination of the distribution of radio-caesium in coastal waters of the British Isles following increased rates of discharge from BNFL Windscale, Cumbria, in 1974.
2. To examine the distribution of plutonium and cerum-144 in seawater of the Irish Sea and its approaches for comparison with the distribution of radiocaesium.
3. To record the gamma count rate, in a selected energy range, from seawater of the Irish Sea.
4. To attempt to collect samples of suspended material close to the seabed in the vicinity of BNFL Windscale.
5. To collect samples of seabed in the North East Irish Sea.
6. To collect seawater samples from the Irish Sea for the analysis of total mercury.
Chief scientistDouglas F Jefferies (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
Cruise reportRV Corella 11/75 cruise report corella11_75.pdf — access key 'C' (0.34 MB) 
Ocean/sea areas 
GeneralNorth Sea
Inner Seas off the West Coast of Scotland
Irish Sea and St. George's Channel
Physical oceanography 
Water bottle stationsQuantity: number of stations = 128
Description: surface and on 47 stations at depth
Chemical oceanography 
RadioactivityQuantity: number of stations = 128
Description: samples for caesium, plutonium and cerium
RadioactivityDescription: Continuous operation of gamma-probe in surface seawater (for Cs-137)
Trace metalsQuantity: number of stations = 8
Description: 2.5 litre samples for mercury analysis
Geology and geophysics 
GrabQuantity: number of deployments = 10
Core - soft bottomQuantity: number of deployments = 1
Other geological/geophysical measurementsDescription: Sediment transport