RRS John Murray JM3/67 Leg 2
Cruise summary report
Cruise Info. | |
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Ship name (ship code) | RRS John Murray (74MJ) |
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Cruise identifier | JM3/67 Leg 2 |
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Cruise period | 1967-09-15 — 1967-10-02 |
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Status | Completed |
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Port of departure | Lisbon, Portugal |
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Port of return | Plymouth, United Kingdom |
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Purpose | Research |
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Objectives | Two projects to be carried out:
1. An air-sea interaction investigation, involving a detailed study of temperature and salinity structure in the surface layer in relation to meteorological parameters.
2. An invesitgation of two Mediterranean water features:
a) double peaks in temperature and salinity profiles;
b) step-function changes in temperature and salinity at the lower boundary of Meditteranean water. |
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Chief scientist | Malcolm R Howe (University of Liverpool Department of Oceanography) |
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Cruise report | (0.25 MB) |
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Ocean/sea areas | |
General | North East Atlantic Ocean (limit 40W) |
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Track charts | (0.03 MB) |
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Measurements | |
Physical oceanography | |
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CTD stations | Quantity: number of stations = 3 Description: Hytech salinity-temperature-depth probe |
CTD stations | Quantity: number of experiments = 2 Description: salinity-temperature-depth probe lowered 1500m every 3 hours to study any changes occuring in the layers; every hour probe lowered to 100m to study small scale surface layer changes |
Surface drifters/drifting buoys | Quantity: number of recoveries = 1 Description: marker buoy |
Surface drifters/drifting buoys | Quantity: number of deployments = 1 Description: marker buoy deployed |
Neutrally buoyant floats | Quantity: number of recoveries = 2 Description: floats |
Neutrally buoyant floats | Quantity: number of deployments = 2 Description: floats |
Other physical oceanographic measurements | Quantity: number of recoveries = 2 Description: drogues |
Other physical oceanographic measurements | Quantity: number of stations = 12 Description: locate and study stratified layers |
Other physical oceanographic measurements | Quantity: number of deployments = 2 Description: parachute drogue |