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RRS Discovery D51 Leg 1
Cruise summary report
Cruise Info. | |
Ship name (ship code) | RRS Discovery (74E3) |
Cruise identifier | D51 Leg 1 |
Cruise period | 1972-11-04 — 1972-11-14 |
Status | Completed |
Port of departure | Southampton, United Kingdom |
Port of return | Gibraltar, Gibraltar |
Purpose | Research |
Objectives | 1) Lay 3 current meter moorings on N Biscay slope.
2) Lay shallow tide gauge on Josephine Bank 3) Obtain a magnometer profile from Biscay to Josephine Bank 4) Test new deep sea tide gauge acoustics 5) Test new pyro-releases 6) Develop new multi programming system on the computer 7) Make a combined TSD and camera profile in Gulf of Cadiz 8) Develop MK III echosounder 9) Test explosive devices |
Chief scientist | James Crease (National Institute of Oceanography) |
Cruise report | (1.09 MB) |
Ocean/sea areas | |
General | English Channel North Atlantic Ocean Strait of Gibraltar (Mediterranean Sea) |
Track charts | (0.02 MB) |
Measurements | |
Physical oceanography | |
Water bottle stations | Quantity: number of stations = 1 |
CTD stations | Quantity: number of stations = 26 Description: mainly in northwest mediterranean |
Current meters | Quantity: 7 Description: 3 days;moorings 130,131,132 |
Surface drifters/drifting buoys | Quantity: 6 Description: drogues |
Sea level (inc. bot. press., inverted echosounder) | Description: only a short record due to circuit fault |
Chemical oceanography | |
Trace elements | Quantity: 12 |
Biology and fisheries | |
Zooplankton | Quantity: 3 |
Neuston | Quantity: 2 |
Meteorology | |
Occasional standard measurements | Quantity: number of stations = 9 Description: geology and physical oceanography |
Geology and geophysics | |
Dredge | Quantity: number of deployments = 11 |
Multi-beam echosounding | Description: approx.1000miles of track surveyed + detailed survey of canyon near 47-45N;08-09W |
Magnetic measurements | Description: approx.1000miles of track surveyed + detailed survey of canyon near 47-45N;08-09W |