RRS Challenger CH12/83

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Challenger (74CH)
Cruise identifierCH12/83
Cruise period1983-08-27 — 1983-09-12
Port of departureDunstaffnage, United Kingdom
Port of returnDunstaffnage, United Kingdom
Objectives1. To deploy two test moorings off Tiree for IOS Bidston.
2. To deploy a pressure recorder in the Rockall Trough.
3. To attempt a recovery of moorings lost during the winter 1982/3 CONSLEX experiment.
4. To deploy a line of six subsurface current meter moorings in the Faroe-Shetland Channel.
5. To occupy CTD stations in the Faroe-Shetland Channel.
6. To obtain gravity cores in association with (4) and (5).
Chief scientistW John Gould (Institute of Oceanographic Sciences Wormley Laboratory)
Cruise reportRRS Challenger CH12/83 cruise report ch12_83.pdf (0.28 MB) 
Ocean/sea areas 
GeneralNorth East Atlantic Ocean (limit 40W)
SpecificWest of Scotland/ Faroe-Shetland Chan.
Track chartsRRS Challenger CH12/83 cruise track — trk3094a.html RRS Challenger CH12/83 cruise track — trk3094b.html
Physical oceanography 
CTD stationsQuantity: number of stations = 31
Description: worked using the Bidston 9040 CTD sea unit, with data recorded at one second intervals.
Current metersQuantity: number of stations = 6
Description: 21current meters deployed
Routine standard measurementsDescription: synoptic hours
Geology and geophysics 
Core - soft bottomQuantity: number of cores = 3
Multi-beam echosoundingDescription: continuous