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Hydrographic Surveys

Reliable and Accurate Positioning

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DSMC utilise high specification hydrographic positioning systems in support of our diving and ROV operations. Combining survey systems with our other equipment spreads allows us to:

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  • Return directly to objects on the seabed again and again quickly and easily saving bottom time and maximising production in tidal windows.

  • Avoid known subsea assets and obstacles such as cables or ordnance when laying anchors for operations.

  • Ensure that seabed searches are completed accurately and completely by utilising USBL systems to record the ground covered.

  • Provide evidence in the form of track-plots to UXO risk assessors to prove that search areas have been suitably covered during the investigation.

  • Record accurate three-dimensional positions during subsea surveys and structural inspections giving positioning and height.

  • Allows us to accurately record and present data from surveys and inspections to a specific height datum such as ordnance datum via triangulation of multiple satellites.

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