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RRS Challenger CH1/85

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Challenger (74CH)
Cruise identifierCH1/85
Cruise period1985-01-20 — 1985-02-05
StatusCompleted
Port of departurePlymouth, United Kingdom
Port of returnArdrossan, United Kingdom
PurposeResearch
ObjectivesThe objectives of this cruise were:
(1) To recover two current meter moorings in the North Channel and deploy another. One recovered: other lost. Deployment accomplished.
(2) To service moorings at S (SE Islay), Y (Tiree Passage) and F (57.5N, 12.25W). Accomplished.
(3) To collect large-volume radiocaesium samples at 3 depths on CTD sections between Copeland and Portpatrick and the Sound of Mull and the shelf break. Accomplished with additional surface samples in the Northern Irish Sea and North Minch..
(4) To work CTD sections across the Rockall Channel, the Scottish shelf and in the Firth of Clyde. Alternate stations of Rockall via Anton Dohrn Seamount (Ellett Line) worked plus extensive coastal sections on the grid and an extensive grid of stations in the Firth of Clyde, Kilbrannan Sound and Lower Loch Fyne.
Chief scientistDavid J Ellett (Scottish Marine Biological Association)
Cruise reportRRS Challenger CH1/85 cruise report ch1_85.pdf (0.23 MB) 
Ocean/sea areas 
GeneralInner Seas off the West Coast of Scotland
Irish Sea and St. George's Channel
North East Atlantic Ocean (limit 40W)
SpecificWest of Scotland
Track chartsRRS Challenger CH1/85 cruise track — trk3201.html RRS Challenger CH1/85 cruise track — trk3201a.html
Measurements 
Physical oceanography 
Water bottle stationsQuantity: number of stations = 122
Description: top & bottom S,166 bottom T only
CTD stationsQuantity: number of stations = 116
Current metersQuantity: number of deployments = 6
Description: 64 days, 6 deployed,10 recovered,
Chemical oceanography 
RadioactivityQuantity: number of samples = 49
Description: water samples for radio-caesium analysis.