RRS Challenger CH8/85
Cruise summary report
|Ship name (ship code)||RRS Challenger (74CH)|
|Cruise period||1985-08-14 — 1985-08-28|
|Port of departure||Ardrossan, United Kingdom|
|Port of return||Dunstaffnage, United Kingdom|
|Objectives||1. To make CTD transects across the shelf between the Mull of Galloway and Cape Wrath, and to collect radiocaesium samples for analysis by Glasgow University and the Fisheries Radiobiological Laboratory, Lowestoft, on certain transects.
2. To collect bottom cores in the North Channel and Sea of the Hebrides for the Fisheries Radiobiological Laboratory, Lowestoft.
3. To repeat a CTD survey of the Firth of Clyde and Kilbrannan Soung.
4. To service SMBA mooring Y in the Tiree Passage, and to deploy a deep mooring on the eastern flank of Anton Dohrn Seamount for recovery in December or March.
5. To work the Anton Dohrn Seamount (Ellett Line) CTD section.
6. To make instrument tests of the Neil Brown 'Smart' CTD and the Bissett-Berman CTDs in a variety of environments, including the Norwegian Sea deep water.
7. To test the suitability of the Interocean S4 current meter for obtaining depth profiles of currents at the shelf edges.
8. To observe seabirds around the Hebrides for the Nature Conservancy Council Seabirds at Sea Programme.
|Chief scientist||David T Meldrum (Scottish Marine Biological Association)|
|Cruise report||(0.22 MB)|
|General||Inner Seas off the West Coast of Scotland|
North East Atlantic Ocean (limit 40W)
|Specific||Rockall Channel/ Scottish Cont. Shelf/ North Channel|
|Water bottle stations||Quantity: number of stations = 177|
|CTD stations||Quantity: number of stations = 177|
Description: 3 without S
|Current meters||Quantity: number of stations = 1|
Description: 4 deployed;3 months
|Radioactivity||Quantity: number of samples = 62|
Description: water samples for radiocaesium analysis.
|Biology and fisheries|
|Birds||Quantity: number of stations = 25|
Description: observed for the identification and distribution of seabirds.
|Geology and geophysics|
|Core - soft bottom||Quantity: number of cores = 10|