RRS Discovery D116
Cruise summary report
|Ship name (ship code)||RRS Discovery (74E3)|
|Cruise period||1981-01-06 — 1981-01-16|
|Port of departure||Barry, United Kingdom|
|Port of return||Funchal, Portugal|
|Objectives||1. To test the new midships winch with its hydraulic main supply, to tension the 10mm cable on it to greater than 5000m and to operate the winch in realistic conditions.
2. To tension the 6mm conducting cable on the electric winch to 5000m
3. To run main trawl winch under tension and assess its serviceability.
4. To run sonars at different frequencies over the continental shelf.
5. To run long CTD sections, from near surface to 300m using the Batfish depth cycling mode, from 47N to approximately 36N.
6. To take wave recordings using a spar buoy in breaking wave conditions.
7. To test a wide variety of instrumentation at various stages of their development under realistic conditions of weather, depth and sea.
|Chief scientist||Brian S McCartney (Institute of Oceanographic Sciences Wormley Laboratory)|
|Cruise report||(0.59 MB)|
|General||Irish Sea and St. George's Channel|
North East Atlantic Ocean (limit 40W)
|Surface measurements underway (T,S)||Quantity: track kilometres = 1481.6|
|Water bottle stations||Description: numerous independent discrete measurements made surface only|
|Subsurface temperature and salinity measurements||Quantity: track kilometres = 1481.6|
Description: batfish CTD
|Biology and fisheries|
|Gear research||Description: trialing of winches under tension.|
|Routine standard measurements|
|Other meteorological measurements||Description: sea and swell|
|Geology and geophysics|
|Bottom photography||Quantity: number of deployments = 2|
|Long/short range side scan sonar||Quantity: track kilometres = 555.6|
|Other geological/geophysical measurements||Quantity: number of deployments = 2|
Description: pore water sampler