RRS Discovery D123A

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Discovery (74E3)
Cruise identifierD123A
Cruise period1981-08-05 — 1981-08-24
Port of departureBarry, United Kingdom
Port of returnBergen, Norway
Objectives1. Investigation of the morphology of the continental slope to the west of the British Isles and Norway with particular reference to the Porcupine Seabight and the slope west and north of Scotland, the Wyville-Thomson Ridge.
2. Operational trials of the new digital correlator for the GLORIA system.
3. Intercomparison trials of the new 80/90 kHz and 245/255 kHz side-scan sonars.
Chief scientistJohn B Wilson (Institute of Oceanographic Sciences Wormley Laboratory)
Cruise reportRRS Discovery D123A cruise report d123.pdf (0.36 MB) 
Ocean/sea areas 
GeneralNorth East Atlantic Ocean (limit 40W)
SpecificPorcupine seabight; Wyville-Thompson Ridge
Track chartsRRS Discovery D123A cruise track — trk2916a.html
Routine standard measurements
Geology and geophysics 
Single-beam echosounding
Long/short range side scan sonar
Single channel seismic reflection