The Great Barrier Reef represents one of the most complex marine environments on the planet, yet much of its geomorphology lies concealed beneath the surface. Bathymetric grids provide the essential framework for studying this underwater landscape, integrating multibeam, single-beam, lidar, and satellite-derived data into coherent digital elevation models. Key datasets such as the GBR100 grid and the AusBathyTopo series, which offer seafloor detail at 100 m and 30 m resolution respectively,...

Australia’s deepest lake has finally been measured with scientific certainty. A dedicated CSIRO survey campaign has confirmed that Lake St Clair in Tasmania reaches a maximum depth of 163 metres. This makes it the deepest lake in Australia by a significant margin and deeper than Bass Strait, which reaches approximately 85 metres at its deepest point. The new depth was determined through a complete, high resolution underwater mapping project that used advanced multibeam echosounders supplied...

Anything 3D we love, especially when you combine above-water LiDAR and below-water Bathymetry into one seamless 3D model. This capability is changing how marine infrastructure projects are surveyed, visualised, and delivered. Tailored Spatial Solutions recently delivered a combined Bathymetric and LiDAR 3D survey of the new barge ramp in Cairns for Brady Marine, with the goal of confirming dredging volumes and assessing design conformance across the site. By integrating drone-based LiDAR...