Cruise inventory

RRS Discovery D74C

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Discovery (74E3)
Cruise identifierD74C
Cruise period1975-09-28 — 1975-10-13
StatusCompleted
Port of departureBrest, France
Port of returnBarry, United Kingdom
PurposeResearch
Objectivesa) To complete a programme of measurements started in 1970, of tidal pressure and currents along the edge of the continental shelf bordering the British Seas by a chain of four stations between Little Sole Bank and Valentina
b) To continue an oceanoc circuit of tidal pressure measurements begun in 1974, by a line of stations along or near latitude 56.36N from about 50 miles west of Inishbofin to the 30W meridian
c) To obtain data on tidal currents on and off the continental shelf near Porcupine Bank, to see if they show any relationship to the unusual diurnal tidal regime near St. Kilda and Rockall Bank
d) To obtain a profile of currents at a site Z1 about 3100m deep, west of the Porcupine Bank shelf edge, to investigate the energy level of internal tides.
Chief scientistDavid E Cartwright (Institute of Oceanographic Sciences Bidston Laboratory)
ProjectOceanic Tidal Survey Covering Shelf Edge South and West of Ireland
Coordinating bodyInstitute of Oceanographic Sciences Deacon Laboratory
Cruise reportRRS Discovery D74C cruise report d74_legs1_3.pdf — access key 'C' (9.61 MB) 
Ocean/sea areas 
GeneralNorth West Atlantic Ocean (limit 40W)
North East Atlantic Ocean (limit 40W)
Track chartsRRS Discovery D74C cruise track — trk1636.html
Measurements 
Physical oceanography 
Water bottle stationsQuantity: number of stations = 2