Geophysical Survey 1979/16: SW Approaches (09/06/1979 to 10/06/1979)
Deep Tow Boomer, Echo Sounder, Gravimeter, Magnetometer, Pinger, Sparker, Transit Sonar
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CP2 Regional Sea Boundaries: Eastern Channel, Offshore 1:250k: Portland, SeaVoX Sub-Ocean: ENGLISH CHANNEL
Report: Armstrong, EJ. 1979. Cruise Report for Project 79/02 and Project 79/16. (IGS Report No 100). Project 79/16 was run with the aim of providing shallow seismic control over a number of sites due to be drilled later in 1979. The sparker and deep tow boomer gave good resolution and penetration down to 100msec and 25msec respectively.
Navigation: Magnavox satellite navigation system integrated with MX 610 doppler sonar. Decca Mk21 Main Chain. Equipment: Huntec Deep Tow Boomer. Atlas Deso 10 echo sounder with digital readout unit (Edig 10). LaCoste & Romberg air-sea gravity meter S75 with LaCoste & Romberg 9400 data acquisition system. Edo Western 248 pinger with hull mounted transducers. IGS multi-element spark array and EG&G 9 candle and 3 candle spark arrays. MS47 side scan sonar. Two 30m Geomechanique hydrophones and one 50m Geomechanique hydrophone. For more detailed information see the Cruise Report.
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