RRS Discovery D122

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Discovery (74E3)
Cruise identifierD122
Cruise period1981-06-30 — 1981-07-27
Port of departurePonta Delgada, Portugal
Port of returnBarry, United Kingdom
ObjectivesThe first part of this cruise was a continuation of the work carried out on Discovery Cruises 114, 119, 120 and 121 in studying the physical oceanography of the front southwest of the Azores. Cruise 122 marked the final phase of these investigations and required the recovery of two full depth current meter moorings set on Cruise 114 in November 1980. Following this work the array of moorings set near 33N 22W on Cruise 114 and the subject of further investigation on Cruise 117 were to be recovered and some CTD stations worked to within a few meters of the sea bed.
A narrow channel through the Azores-Gibraltar fracture zone was visited with a view to investigating the characteristics of water flowing through this channel and two near bottom current meter moorings were set in the channel for recovery in the summer of 1982.
Finally a Sea Soar section was to be worked northwards along 15 30'W and 45N and thence to the continental slope. En route a tide gauge was recovered for IOS Bidston.
Chief scientistW John Gould (Institute of Oceanographic Sciences Wormley Laboratory)
Cruise reportRRS Discovery D122 cruise report d122.pdf (0.86 MB) 
Ocean/sea areas 
GeneralNorth East Atlantic Ocean (limit 40W)
SpecificAzores area
Track chartsRRS Discovery D122 cruise track — trk2727.html
Physical oceanography 
Surface measurements underway (T,S)
BathythermographQuantity: number of profiles = 17
Water bottle stationsDescription: made for batfish calibrations S surface only
CTD stationsQuantity: number of stations = 13
Subsurface temperature and salinity measurementsQuantity: track kilometres = 2592.8
Current metersQuantity: number of deployments = 11
Description: 250 days
Currents measured from ship drift
Sea level (inc. bot. press., inverted echosounder)Quantity: activity duration in days = 250
Description: 27 records
Routine standard measurements
Geology and geophysics 
Multi-beam echosounding