Cruise inventory

RRS Challenger CH7/79

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Challenger (74CH)
Cruise identifierCH7/79
Cruise period1979-05-10 — 1979-05-23
StatusCompleted
Port of departureArdrossan, United Kingdom
Port of returnArdrossan, United Kingdom
PurposeResearch
ObjectivesThe objectives of this cruise were:
(1) Service the current meter mooring at 57N, 9W and deploy moorings at three stations on the Rockall via Anton Dohrn Seamount section. Accomplished, but one recovered current meter has failed due to leakage.
(2) Service IOS moorings in the Rockall Channel. Two of four moorings were recovered.
(3) Work the Rockall via Anton Dohrn Seamount (Ellett Line) CTD section. Only part of the section from the seamount eastwards could be worked due to time lost through mooring recovery problems.
(4) Work additional CTD sections in the northern Rockall Channel. A section across the Cirolana Deep was started but not finished due to technical problems with the CTD.
(5) Collect large-volume surface water sample for radiocaesium analysis from Scottish shelf stations. Accomplished with CTD profiles on all but one station.
(6) Obtain epibenthic sled samples at the SMBA permanent station (54° 40 min N, 12° 16 min W). Not possible due to poor weather and time lost through mooring recovery problems.
(7) Obtain deep plankton samples at the SMBA permanent section using the rectangular mid-water trawl. Not possible due to poor weather and time lost through mooring recovery problems.
(8) Obtain Assagiz trawl samples between the Anton Dohrn Seamount and the St Kilda continental slope. One good sample was obtained.
Chief scientistDavid J Ellett (Scottish Marine Biological Association)
Cruise reportRRS Challenger CH7/79 cruise report ch7_79.pdf — access key 'C' (0.26 MB) 
Ocean/sea areas 
GeneralNorth East Atlantic Ocean (limit 40W)
Track chartsRRS Challenger CH7/79 cruise track — trk2342.html
Measurements 
Physical oceanography 
Water bottle stationsQuantity: number of stations = 40
Description: S surface only
CTD stationsQuantity: number of stations = 22
Description: salinity noisy
Current metersQuantity: number of stations = 5
Current metersQuantity: number of stations = 4
Description: numbers of meters on the 4 SMBA stations are 4,4,4 and 2, respectively
Chemical oceanography 
RadioactivityQuantity: number of samples = 10
Description: water samples for radio-caesium monitoring.
Biology and fisheries 
ZoobenthosQuantity: number of hauls = 1
Description: agassiz trawl haul.
Data held at BODC 
Series/Profiles 
22  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.
987071979-05-21 09:30 57° 13' 23" N  10° 2' 47" W  View metadata report for BODC series reference number 98707
987191979-05-21 12:10 57° 8' 53" N  9° 42' 18" W  View metadata report for BODC series reference number 98719
987201979-05-21 14:22 57° 6' 0" N  9° 24' 59" W  View metadata report for BODC series reference number 98720
987321979-05-21 16:00 57° 2' 59" N  9° 12' 59" W  View metadata report for BODC series reference number 98732
987441979-05-21 17:30 56° 59' 41" N  8° 59' 35" W  View metadata report for BODC series reference number 98744
987561979-05-21 18:40 56° 57' 0" N  8° 46' 59" W  View metadata report for BODC series reference number 98756
987681979-05-21 20:18 56° 52' 59" N  8° 30' 0" W  View metadata report for BODC series reference number 98768
987811979-05-21 21:33 56° 51' 0" N  8° 19' 59" W  View metadata report for BODC series reference number 98781
987931979-05-21 23:22 56° 46' 59" N  8° 0' 11" W  View metadata report for BODC series reference number 98793
988001979-05-22 01:00 56° 43' 53" N  7° 40' 5" W  View metadata report for BODC series reference number 98800
988121979-05-22 02:48 56° 43' 53" N  7° 19' 48" W  View metadata report for BODC series reference number 98812
988241979-05-22 04:25 56° 43' 53" N  7° 0' 0" W  View metadata report for BODC series reference number 98824
988361979-05-22 05:46 56° 44' 5" N  6° 45' 0" W  View metadata report for BODC series reference number 98836
988481979-05-22 07:10 56° 43' 59" N  6° 27' 0" W  View metadata report for BODC series reference number 98848
988611979-05-22 08:35 56° 42' 54" N  6° 16' 30" W  View metadata report for BODC series reference number 98861
986271979-05-13 00:20 60° 18' 53" N  9° 7' 11" W  View metadata report for BODC series reference number 98627
986391979-05-13 01:30 60° 17' 35" N  9° 9' 59" W  View metadata report for BODC series reference number 98639
986401979-05-13 03:03 60° 16' 23" N  9° 12' 59" W  View metadata report for BODC series reference number 98640
986521979-05-20 17:09 57° 26' 53" N  11° 4' 53" W  View metadata report for BODC series reference number 98652
986641979-05-20 18:53 57° 23' 59" N  10° 51' 59" W  View metadata report for BODC series reference number 98664
986761979-05-20 20:28 57° 21' 59" N  10° 39' 47" W  View metadata report for BODC series reference number 98676
986881979-05-21 06:50 57° 17' 47" N  10° 23' 17" W  View metadata report for BODC series reference number 98688