This British Geological Survey (BGS) marine geophysical survey took place in June in the SW Approaches on board the TSS profiler. The purpose was to collect data for regional survey of the UK continental Shelf. See Survey 1973/6 for the first phase of the project. A total of 6395km over 91 survey lines were collected during 1973/6 (Lines 1-49) and 1973/7 (Lines 50-91) surveys. Sea floor data were collected using echo sounder and transit sonar. Sub-bottom profiling data were collected using gravity meter; magnetometer; pinger and sparker. The data were recorded as paper records. These data are archived by BGS. Technical details of the survey are contained in BGS report WB/MG/74/48.
Report: Tully, MC. 1974. Cruise Report for MGU Projects 73/06 and 73/07, TSS Profiler. (BGS Report WB/MG/74/48). Navigation: Decca Main Chain; Decca Hi-fix and Satellite Navigation System, Equipment: Echo sounder; transit sonar; gravity meter; magnetometer; pinger and sparker. For more detailed information see the Cruise Report.
Decca Hifix, Decca Main Chain, Transit satellite
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Geophysical Survey 1973/7: SW Approaches (06/06/1973 to 24/06/1973)
Echo Sounder, Gravimeter, Magnetometer, Pinger, Sparker, Transit Sonar
CP2 Regional Sea Boundaries: Eastern Channel, Western Channel & Celtic Sea, Offshore 1:250k: Caen, Guernsey, Lands End, Lizard, Oussant, Parsons Bank, Portland, Saint-Brieuc, Scilly, Wight, SeaVoX Sub-Ocean: CELTIC SEA, ENGLISH CHANNEL