Rob’s Blog

Recent ocean mapping events within Australia’s marine region.

High-tech seafloor mapping is finding surprising structures everywhere

High-tech seafloor mapping is finding surprising structures everywhere

The August 2022 issue of Scientific American magazine features the newly discovered 500 m tall coral reef from the Great Barrier Reef in 'High-tech seafloor mapping is finding surprising structures everywhere' Thanks to Mark Fischetti (Scientific American), Maciej...

RV Sonne survey of Queensland Plateau

RV Sonne survey of Queensland Plateau

One of the world’s largest research vessels, Germany’s RV Sonne, has completed a month-long marine science expedition (SO292) to the Queensland Plateau conducting multibeam surveying, sub-bottom profiling and underwater camera transects around these giant coral...

Crowdsourced bathy data reveals underwater dunes

Crowdsourced bathy data reveals underwater dunes

When does singlebeam echo sounder data start looking like multibeam data? In this 3D view of the seafloor at North Keppel Island, Great Barrier Reef, dense lines of crowdsourced bathymetry data reveal ~2.5 m high underwater dunes (profile is 1 km long). Thanks to the...

Queensland wrecks photo gallery

Queensland wrecks photo gallery

There are some 1000+ wrecks in Queensland waters and on the Great Barrier Reef. Here is a photo gallery collection of wrecks revealed through high-resolution multibeam sonar, sidescan sonar and photogrammetry. Many thanks to all those mapping specialists who provided...

Hydrospatial 2021 Conference live in Cairns, Australia

Hydrospatial 2021 Conference live in Cairns, Australia

In a very welcome return to live meetings, the Hydrospatial 2021 Conference was held in Cairns, Australia, from 16-18 Feb 2022 after being delayed since 2021. The theme of the conference was 'Hydrography of the Future'. John Maschke, Conference Director, together with...

Collaboration with Caladan Oceanic in the Coral Sea

Collaboration with Caladan Oceanic in the Coral Sea

Fantastic to be collaborating with Caladan Oceanic to acquire new Kongsberg EM124 multibeam map data in the Coral Sea Marine Park during the ‘Ring of Fire Expedition Part II - South Pacific Trenches’ with the DSSV Pressure Drop and submersible Limiting Factor. DSV...

Crowdsourced bathymetry data improves 3D depth models

Crowdsourced bathymetry data improves 3D depth models

Crowdsourced bathymetry (CSB) data improve 3D depth models for Australia's Great Barrier Reef. Before and after 3D depth modelHere, fishing vessel MV Sharp Shooter's CSB data reveals the deeper channel between shallow reefs previously surveyed with airborne LiDAR...

New 3D depth model of Great Barrier Reef and Coral Sea

New 3D depth model of Great Barrier Reef and Coral Sea

A new 3D bathymetry (depth) model of the Great Barrier Reef and Coral Sea at ~100 m resolution, called ‘gbr100’, is now available at the gbr100 download page. New 3D depth model for the GBRThis revised 3D depth model (V6 – 10 Nov 2020) is a significant improvement on...