RRS John Murray JM5/81
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RRS John Murray (74MJ) |
| Cruise identifier | JM5/81 |
| Cruise period | 1981-05-01 — 1981-05-23 |
| Status | Completed |
| Port of departure | Barry, United Kingdom |
| Port of return | Immingham, United Kingdom |
| Purpose | Research |
| 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 |
| Chief scientist | David T Pugh (Institute of Oceanographic Sciences Bidston Laboratory) |
| Cruise report |  (1.22 MB) |
| Ocean/sea areas | |
| General | North Sea Irish Sea and St. George's Channel |
| Track charts |  |
| Measurements | |
| Physical oceanography | |
| 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 |
