RRS John Murray JM15/75
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RRS John Murray (74MJ) |
| Cruise identifier | JM15/75 |
| Cruise period | 1975-10-21 — 1975-11-04 |
| Status | Completed |
| Port of departure | Barry, United Kingdom |
| Port of return | Barry, United Kingdom |
| Purpose | Research |
| Objectives | 1. To carry out studies of sandwaves and associated dune bed forms in the Skerries Bank area of Start Bay.
2. To carry out a detailed bathymetric survey of sandwaves in the South Sandette Bank area. 3. To carry out trials with the EG & G sonar in a vertical tow mode. 4. To carry out sonar surveys off Bournemouth and Totland Pier. 5. To continue operating trials with Rangemaster relative positioning system. |
| Chief scientist | D Nicholas Langhorne (Institute of Oceanographic Sciences Taunton) |
| Cruise report |  (0.39 MB) |
| Ocean/sea areas | |
| General | English Channel North Sea |
| Track charts |  |
| Measurements | |
| Physical oceanography | |
| Other physical oceanographic measurements | Quantity: number of profiles = 3 Description: sound velocity stations |
| Meteorology | |
| Other meteorological measurements | Description: sea and swell |
| Geology and geophysics | |
| In-situ seafloor measurement/sampling | Quantity: number of dives = 10 Description: sampling by divers |
| Multi-beam echosounding | Quantity: track kilometres = 93 |
| Long/short range side scan sonar | Quantity: number of hauls = 30 |
