RRS Challenger CH4/80
Cruise summary report
|Ship name (ship code)||RRS Challenger (74CH)|
|Cruise period||1980-02-26 — 1980-03-07|
|Port of departure||Barry, United Kingdom|
|Port of return||Barry, United Kingdom|
|Objectives||The objectives of this cruise were:
(1) Deploy current meter moorings at 57N, 9W and deploy moorings at two stations on the Rockall via Anton Dohrn Seamount section. Accomplished.
(2) Work the Rockall via Anton Dohrn Seamount (Ellett Line) CTD section. Accomplished.
(3) Work additional CTD sections in the northern Rockall Channel. Not attempted.
(4) Collect large-volume surface water sample for radiocaesium analysis from Scottish shelf stations. Accomplished with CTD profiles on all but one station.
(5) Obtain epibenthic sled samples at the SMBA permanent station (54° 40 min N, 12° 16 min W). Accomplished.
(6) Obtain deep plankton samples at the SMBA permanent section using the rectangular mid-water trawl. Accomplished.
(7) Obtain Assagiz trawl samples between the Anton Dohrn Seamount and the St Kilda continental slope. One good sample was obtained.
|Chief scientist||David T Meldrum (Scottish Marine Biological Association), John D Gage (Scottish Marine Biological Association)|
|Cruise report||(0.15 MB)|
|General||Inner Seas off the West Coast of Scotland|
North East Atlantic Ocean (limit 40W)
|Specific||Rockall Channel/ Scottish Cont. Shelf|
|Water bottle stations||Quantity: number of stations = 15|
Description: S surface only
|CTD stations||Quantity: number of stations = 38|
Description: noisy salinity
|Subsurface temperature and salinity measurements||Description: surface temperature and salinity obtained on passage between the permanent station and station F, and midway between CTD stations on the continental shelf.|
|Current meters||Quantity: number of deployments = 3|
Description: Deployment only.
|Radioactivity||Quantity: number of samples = 10|
Description: water samples obtained for radio-caesium analysis.