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New Zealand's location – with an Exclusive Economic Zone of 4 million km2 and an Extended Continental Shelf of 1.7 million km2 - makes it a nautical nation with a vast sea area available for hydrographic studies. Research in Hydrographic Surveying at the School covers the fields acoustic measurement, high-resolution bathymetric mapping of the seabed, inland rivers and lakes and legacy hydrographic data.

Hydrographic themes

  • Underwater acoustics for hydrography
  • High-resolution bathymetric mapping using multibeam echo sounder and side scan sonar
  • Hydrographic surveying at sea, on inland rivers and lakes
  • Combining land and sea measurements
  • Ocean Governance - beyond NZ's Territorial Sea
  • Hydrographic Education in NZ and Australasia

Recent hydrographic research topics

  • Unmanned Surface Vehicles. Toys or Tools?
  • Mapping Where Yellow-Eyed Penguins are Foraging, Using Modern Hydrographic Acoustic Techniques
  • The Role of a Surveyor in Hydrographic Research
  • An Investigation into the Use of Remotely Operated Survey Vessels for a Multibeam, Nautical Charting Survey
  • An Investigation into the Performance of Trimble's Real-time Kinematic, OmniSTAR G2 and CenterPoint RTX Positioning Services
  • The Use of Oblique Angled Single Beam Echo Sounding for Detecting Bridge Scouring
  • Practical methods to aid the planning of hydrographic surveying and the coordination of nautical charting in the Antarctic region
  • Comparative Study of Tide Gauge Data between Dunedin and Port Chalmers
  • An evaluation of the positional accuracy of the OmniSTAR differential HP system
  • Water Level Measurement and Tidal Datum Transfer Using High Rate GPS Buoys
  • Bathymetry Tidal Influences
  • Hydrographic Surveying Methods in Marine Protected Areas

People Involved

Emily Tidey

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