Cruise inventory

RRS Challenger CH6A/81

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Challenger (74CH)
Cruise identifierCH6A/81
Cruise period1981-04-06 — 1981-04-15
StatusCompleted
Port of departureBarry, United Kingdom
Port of returnStornoway, United Kingdom
PurposeResearch
ObjectivesThe objectives of this cruise were:
(1) To service current meter moorings at station R (shelf: 57N, 9W) and re-lay current meter moorings at stations M (deep water: 57° 18 min N, 10° 23 min W) and F (deep water: 57.5N, 12.25W). Accomplished.
(2) To sample benthos in the southern and central Rockall Trough. Successful epibenthic sled and Agassiz trawl hauls at the SMBA permanent station and station M.
(3) To recover the corrosion potential current meter mooring off South Uist. Accomplished.
(4) To work the Rockall via Anton Dohrn Seamount (Ellett Line) CTD section. Stations R (shelf) to O (deep water between the slope and the seamount) of the section worked. Additional CTD sections on the shelf worked from Loch Moidart past Oigh Sgeir and at right angles into Loch Bracadale, Skye.
(5) To determine bottom topography at future mooring sites to the west of Porcupine Bank. Accomplished.
(6) To collect large-volume surface water samples for radiocaesium analysis, accompanied by CTD profiles, at stations across the Scottish continental shelf. Accomplished with CTD profiles on all but one station.
Chief scientistDavid J Ellett (Scottish Marine Biological Association)
Cruise reportRRS Challenger CH6A/81 cruise report ch6_81.pdf — access key 'C' (0.25 MB) 
Ocean/sea areas 
GeneralInner Seas off the West Coast of Scotland
North East Atlantic Ocean (limit 40W)
SpecificRockall Channel/ Scottish Cont. Shelf
Track chartsRRS Challenger CH6A/81 cruise track — trk2740.html RRS Challenger CH6A/81 cruise track — trk2740a.html
Measurements 
Physical oceanography 
CTD stationsQuantity: number of stations = 29
Current metersQuantity: number of stations = 1
Description: mooring(2 c.m.)recovered and not relaid;36 days
Other physical oceanographic measurementsQuantity: number of deployments = 75
Description: one corrosion potential c.m.
Chemical oceanography 
RadioactivityQuantity: number of samples = 10
Description: radionuclides
Biology and fisheries 
ZooplanktonQuantity: number of hauls = 1
ZoobenthosQuantity: number of hauls = 2
Description: survey:taxonomy,population
Data held at BODC 
Series/Profiles 
29  CTD/STD cast
Vertical spatial coordinates
Salinity of the water column
Temperature of the water column
Vertical spatial coordinates
Salinity of the water column
Temperature of the water column

BODC idDate/TimeLocationDoc.
1880931981-04-14 14:04 56° 59' 29" N  6° 37' 47" W  View metadata report for BODC series reference number 188093
1881001981-04-14 15:16 57° 1' 17" N  6° 49' 5" W  View metadata report for BODC series reference number 188100
1881121981-04-14 16:07 57° 4' 5" N  6° 43' 59" W  View metadata report for BODC series reference number 188112
1881241981-04-14 16:55 57° 9' 53" N  6° 39' 36" W  View metadata report for BODC series reference number 188124
1881361981-04-14 17:56 57° 12' 59" N  6° 35' 5" W  View metadata report for BODC series reference number 188136
1881481981-04-14 18:32 57° 15' 18" N  6° 33' 11" W  View metadata report for BODC series reference number 188148
1881611981-04-14 19:02 57° 18' 5" N  6° 31' 5" W  View metadata report for BODC series reference number 188161
1878401981-04-08 12:43 52° 29' 35" N  13° 59' 24" W  View metadata report for BODC series reference number 187840
1878521981-04-13 00:37 57° 9' 11" N  9° 41' 53" W  View metadata report for BODC series reference number 187852
1878641981-04-13 02:22 57° 7' 23" N  9° 33' 0" W  View metadata report for BODC series reference number 187864
1878761981-04-13 03:54 57° 6' 0" N  9° 24' 59" W  View metadata report for BODC series reference number 187876
1878881981-04-13 05:02 57° 4' 30" N  9° 18' 17" W  View metadata report for BODC series reference number 187888
1879071981-04-13 06:01 57° 3' 5" N  9° 12' 59" W  View metadata report for BODC series reference number 187907
1879191981-04-13 07:32 57° 0' 0" N  9° 0' 0" W  View metadata report for BODC series reference number 187919
1879201981-04-13 10:09 56° 56' 53" N  8° 46' 41" W  View metadata report for BODC series reference number 187920
1879321981-04-13 11:39 56° 52' 53" N  8° 29' 29" W  View metadata report for BODC series reference number 187932
1879441981-04-13 13:00 56° 52' 53" N  8° 29' 29" W  View metadata report for BODC series reference number 187944
1879561981-04-13 21:30 56° 47' 5" N  7° 59' 47" W  View metadata report for BODC series reference number 187956
1879681981-04-13 23:09 56° 43' 47" N  7° 39' 59" W  View metadata report for BODC series reference number 187968
1879811981-04-14 00:43 56° 43' 53" N  7° 19' 23" W  View metadata report for BODC series reference number 187981
1879931981-04-14 02:19 56° 43' 59" N  7° 0' 0" W  View metadata report for BODC series reference number 187993
1880071981-04-14 03:29 56° 43' 47" N  6° 45' 0" W  View metadata report for BODC series reference number 188007
1880191981-04-14 05:00 56° 44' 5" N  6° 27' 23" W  View metadata report for BODC series reference number 188019
1880201981-04-14 06:06 56° 41' 11" N  6° 17' 29" W  View metadata report for BODC series reference number 188020
1880321981-04-14 09:45 56° 47' 42" N  5° 56' 35" W  View metadata report for BODC series reference number 188032
1880441981-04-14 10:40 56° 49' 12" N  6° 4' 59" W  View metadata report for BODC series reference number 188044
1880561981-04-14 11:25 56° 51' 23" N  6° 11' 24" W  View metadata report for BODC series reference number 188056
1880681981-04-14 12:16 56° 54' 5" N  6° 20' 17" W  View metadata report for BODC series reference number 188068
1880811981-04-14 13:05 56° 56' 29" N  6° 28' 48" W  View metadata report for BODC series reference number 188081