Cruise inventory

RRS Challenger CH7A/83

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Challenger (74CH)
Cruise identifierCH7A/83
Cruise period1983-05-11 — 1983-05-23
StatusCompleted
Port of departureFalmouth, United Kingdom
Port of returnOban, United Kingdom
ObjectivesThe objectives of this cruise were:
(1) To service current meter moorings on the Porcupine Bank Slope, at sites F and M in the Rockall Channel and site Y in the Tiree Passage. One (of 2) Porcupine Bank moorings could not be located. Otherwise accomplished. CTD section worked along Porcupine mooring line.
(2) To deploy four current meter moorings on a line across the Hebridean Slope west of South Uist. Two moorings deployed.
(3) To deploy three satellite-tracked drogues at the southern entrance to the Rockall Channel. Accomplished.
(4) To make Agassiz trawl, benthic sledge and midwater trawl hauls at the 54N benthos station and station M. Accomplished.
(5) To work CTD sections with radiochemical sampling across the Scottish continental shelf. Four sections worked between the Mull of Galloway and Islay.
(6) To deploy IOS Bidston tide gauges in the Porcupine Sea Bight and the Rockall Channel. Accomplished.
Chief scientistDavid J Ellett (Scottish Marine Biological Association)
Cruise reportRRS Challenger CH7A/83 cruise report ch7_83.pdf — access key 'C' (0.23 MB) 
Ocean/sea areas 
GeneralInner Seas off the West Coast of Scotland
North East Atlantic Ocean (limit 40W)
SpecificPorcupine Bank; Rockall Channel; Scottish Shelf; North Channel
Track chartsRRS Challenger CH7A/83 cruise track — trk2965.html
Measurements 
Physical oceanography 
CTD stationsQuantity: number of stations = 33
Description: noisy salinity
Current metersQuantity: number of recoveries = 10
Description: Current meters recovered
Surface drifters/drifting buoysQuantity: number of deployments = 3
Description: Drogued buoys deployed
Sea level (inc. bot. press., inverted echosounder)Quantity: number of deployments = 2
Description: Pressure gauges deployed
Chemical oceanography 
RadioactivityQuantity: number of samples = 25
Description: Surface 137Cs samples.
Biology and fisheries 
ZooplanktonQuantity: number of hauls = 1
Description: RMT haul
ZoobenthosQuantity: number of hauls = 3
Description: Agassiz trawl plus 2 epibenthic sledge
Data held at BODC 
Series/Profiles 
33  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.
1929101983-05-15 05:25 51° 42' 0" N  14° 45' 0" W  View metadata report for BODC series reference number 192910
1929221983-05-15 06:50 51° 42' 17" N  14° 55' 53" W  View metadata report for BODC series reference number 192922
1929341983-05-15 12:23 51° 42' 41" N  15° 10' 59" W  View metadata report for BODC series reference number 192934
1929461983-05-15 14:47 51° 42' 17" N  15° 21' 35" W  View metadata report for BODC series reference number 192946
1929581983-05-15 15:04 51° 43' 23" N  15° 22' 30" W  View metadata report for BODC series reference number 192958
1929711983-05-16 18:27 54° 51' 5" N  15° 27' 36" W  View metadata report for BODC series reference number 192971
1929831983-05-18 20:28 57° 32' 59" N  12° 24' 23" W  View metadata report for BODC series reference number 192983
1929951983-05-19 11:02 57° 16' 5" N  10° 19' 12" W  View metadata report for BODC series reference number 192995
1930091983-05-21 07:05 55° 46' 17" N  8° 0' 11" W  View metadata report for BODC series reference number 193009
1930101983-05-21 08:47 55° 46' 5" N  7° 41' 23" W  View metadata report for BODC series reference number 193010
1930221983-05-21 10:11 55° 46' 5" N  7° 28' 53" W  View metadata report for BODC series reference number 193022
1930341983-05-21 11:27 55° 45' 59" N  7° 16' 35" W  View metadata report for BODC series reference number 193034
1930461983-05-21 12:42 55° 45' 59" N  7° 3' 54" W  View metadata report for BODC series reference number 193046
1930581983-05-21 13:38 55° 45' 59" N  6° 55' 59" W  View metadata report for BODC series reference number 193058
1930711983-05-21 14:25 55° 45' 35" N  6° 46' 30" W  View metadata report for BODC series reference number 193071
1930831983-05-21 15:11 55° 45' 54" N  6° 37' 23" W  View metadata report for BODC series reference number 193083
1930951983-05-21 16:00 55° 45' 59" N  6° 30' 47" W  View metadata report for BODC series reference number 193095
1931021983-05-22 01:22 54° 47' 59" N  5° 4' 59" W  View metadata report for BODC series reference number 193102
1931141983-05-22 02:06 54° 45' 59" N  5° 9' 59" W  View metadata report for BODC series reference number 193114
1931261983-05-22 02:55 54° 44' 29" N  5° 15' 0" W  View metadata report for BODC series reference number 193126
1931381983-05-22 03:38 54° 43' 5" N  5° 20' 11" W  View metadata report for BODC series reference number 193138
1931511983-05-22 04:14 54° 41' 35" N  5° 24' 59" W  View metadata report for BODC series reference number 193151
1931631983-05-22 05:12 54° 40' 17" N  5° 29' 24" W  View metadata report for BODC series reference number 193163
1931751983-05-22 09:33 55° 0' 35" N  5° 58' 48" W  View metadata report for BODC series reference number 193175
1931871983-05-22 10:23 55° 8' 35" N  5° 58' 48" W  View metadata report for BODC series reference number 193187
1931991983-05-22 11:07 55° 13' 23" N  5° 52' 47" W  View metadata report for BODC series reference number 193199
1932061983-05-22 12:13 55° 14' 35" N  5° 47' 29" W  View metadata report for BODC series reference number 193206
1932181983-05-22 13:05 55° 16' 29" N  5° 42' 53" W  View metadata report for BODC series reference number 193218
1932311983-05-22 16:17 55° 36' 0" N  5° 45' 5" W  View metadata report for BODC series reference number 193231
1932431983-05-22 16:42 55° 36' 0" N  5° 48' 59" W  View metadata report for BODC series reference number 193243
1932551983-05-22 17:10 55° 37' 5" N  5° 53' 11" W  View metadata report for BODC series reference number 193255
1932671983-05-22 17:52 55° 37' 59" N  5° 57' 0" W  View metadata report for BODC series reference number 193267
1932791983-05-22 18:22 55° 38' 59" N  6° 0' 53" W  View metadata report for BODC series reference number 193279