I Navigation and Hydrography.- 1 Starfix: commercial satellite positioning.- 2 A quality control index for swathe sounding data.- 3 The challenge of digital data in hydrography.- 4 New echosounding methods for shallow water and deep sea surveying.- II Oceanography.- 5 The Canadian meteorological buoy network.- 6 Airborne surveys of ocean current and temperature perturbations induce by hurricanes.- 7 Thermal structure and remote sensing measurements in a major frontal region.- 8 A long-term intercomparison of wave sensors in the northern North Sea.- 9 Wave height distributions in shallow water.- 10 Analysis of waves from arrays at Abu Quir and Ras El-Bar.- 11 The influence of changing wind conditions on sea surface residual currents measured by HF radar.- III Techniques and Instrumentation.- 12 Parametric investigations into dynamics of tethered subsea units during launch/recovery operations using model experiments.- 13 Impact of non-linearities on the dynamic behaviour of tension leg platforms.- 14 Fairings for oceanographic cables and instruments:have we yet solved all the problems?.- 15 A new self-contained, multipath-protected acoustic transmission system for the offshore environment.- 16 Real-time, long term communication system for deep ocean instrumentation.- 17 The hydro-optic sensor system (HOSS).- 18 Determination of salinity by an optical wave guide technique.- 19 Measurement of current profiles.- IV Geology, Geophysics, Geotechnics.- 20 Seismic interference, filtering methods and revised noise limits.- 21 A sonar workstation.- 22 Improving the seismic picture: the latest technique.- 23 Offshore drilling and safety: the role of digital high resolution site surveys.- 24 The Ocean Drilling Program.- 25 Measurement of chain geometry in the ground: a comparison of the effects on long and short piled anchors.- 26 The Tyro 86 penetrator experiments at Great Meteor East.- 27 The disposal of heat-generating nuclear waste in deep ocean geological formation: a feasible option.- V Marine Environmental Considerations.- 28 Mathematical modelling of sewage discharges into tidal waters.- 29 The (NERC) North Sea Community Project, 1987¿1992.- 30 Logistic support for the sandfill operations in the Eastern Scheldt tidal basin.- 31 Limitations on offshore environmental monitoring imposed by sea bed sampler design.- 32 Design and use of a clean shipboard handling system for seawater samples.- 33 Some ecological consequences of the use of anti-fouling paints containing tributyltin.- 34 The use of a landfill site for Bunker C collected from a barge aground at Matane, Quebec: a case study.