Cruise inventory

MV Briarthorn 6/74

Cruise summary report

Cruise Info. 
Ship name (ship code)MV Briarthorn (74B6)
Cruise identifier6/74
Cruise period1974-04-22 — 1974-06-19
StatusCompleted
Port of departureSouth Shields, United Kingdom
Port of returnPlymouth, United Kingdom
PurposeResearch
Objectives1. 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 scientistP Kimber (Hunting Surveys Limited)
Cruise reportMV Briarthorn 6/74 cruise report briarthorn6_74.pdf — access key 'C' (5.61 MB) 
Ocean/sea areas 
GeneralIrish Sea and St. George's Channel
Measurements 
Biology and fisheries 
Gear researchDescription: A number of gear trials took place during the cruise, for all subsequent projects. No of trials not noted.
Geology and geophysics 
Seismic refractionDescription: Seismic profiling was carried out during the cruise, to the requirements od CSUI. No. of profiles not noted.