Oceanography & Geophysical Surveys
Gun Marine Services vessels are experienced and equipped to carry out both offshore oceanographic and geophysical surveys. GMS have provided these services for Federal Government and State government departments, and private, international companies such as Department for Planning and Infrastructure, Bureau of Meterology, Chevron, BHP Billiton, Woodside Energy, RPS Group, Fugro, URS Corp, Intertek, Shell and Inpex.
Oceanographic Survey:
Oceanographic services have included:
- Installation/ Deployment/ Recovery of:
- Current Meters
- Wave Rider Buoys
- Met Stations
- Servicing of current meters, wave rider buoys and met stations.
- Real-time current investigations through drogue tracking
- Ecological/ Biological Surveys
- Dive Operations
Oceanographic survey techniques include:
- Bathymetry mapping: with use of sonars and sinking of free falling probes.
- Measuring tidal variations: with the use of buoys and gauges
- Measuring ocean surface waves
- Measuring currents
- Drift measurements
- Water sampling
- Measuring temperature
- Measuring density
- Measuring salinity
- Measuring sound velocity
- Measuring content of suspended materials
- Measuring dissolved substances
- Ecological/ Biological Surveys such as fish surveys.
Geophysical Survey:
GMS is experienced in the collection and monitoring of geophysical data for oceanographic spatial studies. Services include methods by:
- Sidescan sonar
- Bathymetry
- Swathe bathymetry
- Towed boomers for seismic survey
- Sediment sample collection through nishan sampling and grab sampling
- Camera tows
- ROV work
