Cruise summary report
Cruise Info. | |
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Ship name (ship code) | RRS John Murray (74MJ) |
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Cruise identifier | JM5/81 |
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Cruise period | 1981-05-01 — 1981-05-23 |
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Status | Completed |
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Port of departure | Barry, United Kingdom |
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Port of return | Immingham, United Kingdom |
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Purpose | Research |
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Objectives | 1) An investigation of the slope on the mean sea level surface between Leith and Immingham. Current meters and off-shore pressure gauges were deployed in conjunction with a network of coastal sea level gauges
2) A study of the tidal energy budget in a shallow coastal region
3) Measurements of currents around a sandbank to test theories of spring-neap changes in the mean currents |
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Chief scientist | David T Pugh (Institute of Oceanographic Sciences Bidston Laboratory) |
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Cruise report | (1.22 MB) |
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Ocean/sea areas | |
General | North Sea Irish Sea and St. George's Channel |
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Track charts | |
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Measurements | |
Physical oceanography | |
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Surface measurements underway (T,S) | Quantity: track kilometres = 4600 |
CTD stations | Quantity: number of stations = 116 |
Current meters | Quantity: number of stations = 15 Description: 24 c.m.;23 days |
Sea level (inc. bot. press., inverted echosounder) | Quantity: activity duration in days = 23 |