RRS Frederick Russell FR19/84

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Frederick Russell (74GG)
Cruise identifierFR19/84
Cruise period1984-10-23 — 1984-11-05
Port of departureFalmouth, United Kingdom
Port of returnPlymouth, United Kingdom
Objectives1. To deploy current meter and thermistor chain moorings in the vicinity of Black Mud Canyon to study the effects of internal waves and tidal currents in relation to sediment transport processes.
2. To carry out salinity and temperature measurements using CTD, XBT and thermosalinograph equipment, to further study the effects of internal waves and other processes at the shelf-edge.
3. To carry out echosounding and sidescan sonar surveys to determine the distribution of sandwaves and other bedforms in the head of Black Mud Canyon.
4. To carry out a programme of sediment sampling and underwater photography in the Canyon and on the shelf-edge.
5. To carry out trials of remote recording sediment transport and boundary layer equipment (STABLE).
6. To recover an autonomous recording inverted echosounder buoy (ARIES).
Chief scientistAnthony D Heathershaw (Institute of Oceanographic Sciences Taunton)
Cruise reportRRS Frederick Russell FR19/84 cruise report frederick_russell19_84.pdf (0.27 MB) 
Ocean/sea areas 
GeneralBay of Biscay
SpecificN. Bay of Biscay
Track chartsRRS Frederick Russell FR19/84 cruise track — frederick_russell19_84track.pdf (0.06 MB) 
Physical oceanography 
BathythermographDescription: extensive bathymetric surveying completed using the PES equipment.
CTD stationsQuantity: number of profiles = 80
Subsurface temperature and salinity measurementsDescription: Thermosalinograph run more or less continuously throughout the cruise.
Geology and geophysics 
GrabQuantity: number of samples = 40
Description: sediment samples obtained using a Shipek Grab.