RRS Challenger CH2/82
Cruise summary report
| Cruise Info. | |||||||||||||||||||||
| Ship name (ship code) | RRS Challenger (74CH) | ||||||||||||||||||||
| Cruise identifier | CH2/82 | ||||||||||||||||||||
| Cruise period | 1982-01-26 — 1982-02-09 | ||||||||||||||||||||
| Status | Completed | ||||||||||||||||||||
| Port of departure | Ardrossan, United Kingdom | ||||||||||||||||||||
| Port of return | Ardrossan, United Kingdom | ||||||||||||||||||||
| Objectives | The objectives of this cruise were:
(1) To service current meter moorings at stations R (57N, 9W), M (57° 18 min N, 10° 23 min W), F (57.5N, 12.25W), A1 (52.5N, 14° 46 min W) and A2 (52.5 N, 14° 56 min W), to lay a mooring at Y (Tiree Passage: 56° 37 min N, 6° 24 min W) and deploy the corrosion potential current meter off South Uist). Moorings R and F recovered and re-laid: Tiree Passage mooring deployed. (2) To service MAFF current meter moorings at A3 (52.5N, 15° 16 min W) and A4 (52.5 N, 15° 26 min W) and IOS Bidston pressure gauge at 56° 41 min N, 11° 32 min W). Check Bidston pressure gauge at 57° 10 min N, 10° 6 min W. No time to service A3/A4 due to poor weather. Pressure gauge destroyed in an accident during recovery. Other gauge confirmed in position. (3) To work the Rockall via Anton Dohrn Seamount CTD section and other sections across the southern Rockall Channel. Not done due to winch problems and poor weather. (4) To collect large-volume surface and sub-surface water samples for radiocaesium analysis with CTD profiles on stations. Surface samples at all 10 stations plus Tiree Passage site with sub-surface samples on 6. CTD profiles were possible on 4. (5) To make Agassiz trawl and benthic sledge hauls to the east of the Anton Dohrn Seamount and at the SMBA permanent benthos station (54.5N). One sledge haul on the seamount possible producing a good catch. (6) To work CTD sections in the Sea of the Hebrides. Not possible due to poor weather. (7) To collect underway surface temperature and salinity samples along track. Accomplished. | ||||||||||||||||||||
| Chief scientist | David J Ellett (Scottish Marine Biological Association) | ||||||||||||||||||||
| Project | Ellett Line | ||||||||||||||||||||
| Cruise report |  (0.20 MB) | ||||||||||||||||||||
| Ocean/sea areas | |||||||||||||||||||||
| General | North East Atlantic Ocean (limit 40W) | ||||||||||||||||||||
| Specific | North Atlantic | ||||||||||||||||||||
| Track charts |  | ||||||||||||||||||||
| Measurements | |||||||||||||||||||||
| Physical oceanography | |||||||||||||||||||||
| Water bottle stations | Quantity: number of stations = 5 | ||||||||||||||||||||
| CTD stations | Quantity: number of stations = 4 | ||||||||||||||||||||
| Subsurface temperature and salinity measurements | Description: Surface temperature and salinity samples taken at frequent intervals throughout the cruise. | ||||||||||||||||||||
| Current meters | Quantity: number of stations = 3 Description: 1 new mooring and 2 relaid;5 c.m.:113d;1 c.m.:12days | ||||||||||||||||||||
| Chemical oceanography | |||||||||||||||||||||
| Radioactivity | Quantity: number of stations = 10 Description: water samples for radio-caesium determination. | ||||||||||||||||||||
| Biology and fisheries | |||||||||||||||||||||
| Zoobenthos | Description: survey:taxonomy,population | ||||||||||||||||||||
| Other biological/fisheries measurement | |||||||||||||||||||||
| Data held at BODC | Get data | ||||||||||||||||||||
| Series/Profiles | |||||||||||||||||||||
| 4 CTD/STD cast | Salinity of the water column Temperature of the water column Vertical spatial coordinates Salinity of the water column Temperature of the water column Vertical spatial coordinates
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