MV Briarthorn 6/74
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | MV Briarthorn (74B6) |
| Cruise identifier | 6/74 |
| Cruise period | 1974-04-22 — 1974-06-19 |
| Status | Completed |
| Port of departure | South Shields, United Kingdom |
| Port of return | Plymouth, United Kingdom |
| Purpose | Research |
| Objectives | 1. Sampling by CSUI in area between 50°N and 52°N in the SW Approaches.
2. Geophysical traversing during night-time periods with the purpose of i) reconnoitring sample sites and ii) clarifying earlier sparker surveys 3. An incidental effect of the cruise was as a shakedown of MGU and RVB gear for subsequent MGU surveys. 4. It was intended to use the cruise for the installation testing and calibration of the new MGU integrated satellite navigation doppler sonar system but this had not been delivered before the end of the project. |
| Chief scientist | P Kimber (Hunting Surveys Limited) |
| Cruise report |  (5.61 MB) |
| Ocean/sea areas | |
| General | Irish Sea and St. George's Channel |
| Measurements | |
| Biology and fisheries | |
| Gear research | Description: A number of gear trials took place during the cruise, for all subsequent projects. No of trials not noted. |
| Geology and geophysics | |
| Seismic refraction | Description: Seismic profiling was carried out during the cruise, to the requirements od CSUI. No. of profiles not noted. |
