HYDROGRAPHIC SURVEY

River, coastal and shallow marine hydrographic surveys

HYDROGRAPHIC SURVEY

River, coastal and shallow marine hydrographic surveys can be undertaken usinglocally hired shallow draft boats with our own personnel and equipment, including 3 No. echo sounders up to 100m depth capability, automatic digital tide monitoring equipment, DGPS positioning and navigation equipment.

All equipment fully calibrated.
Single & dual frequency echo sounders, CEEDUCER Pro. Positioning & tracking using PSION navigation system with Hypack software linked to real time DGPS Leica 1200 series base station , current meter and rover units and ASHTEC equipment.

TIDE MONITORING using CEETIDE.

Calculation of tide constants – mean sea level ( MSL ), Chart Datum ( CD ), Lowest Astronomical Tide ( LAT ), Highest Astronomical Tide ( HAT ) and other tide based parameters.

Typical projects have included:

  • Ports, harbours, berths & marine terminals.
  • Ship navigation channels
  • Coal & oil / gas loading & unloading facilities
  • Breakwaters
  • Dredging
  • Underwater Pipelines & cables
  • Position fixing for drilling & construction works
  • Feasibility, design & construction engineering works
  • Environmental
  • River and coastal crossings – bridges, embankments, road,rail & pipeline / cable crossings.
TOP