Honouring Oman’s hydrographic journey
Stretching over more than 3,000 kilometres, Oman’s coastline runs along the Arabian Gulf, the Sea of Oman and the Arabian Sea. It is a maritime landscape of islands, bays, coral reefs and the Strait...
Identifying true bottom for reliable dredging results
The Tietê-Paraná Waterway is an important navigable route in Brazil, stretching over 2,400 kilometres. It comprises sections of the Paraná and Tietê rivers and is equipped with lock systems to ove...
Exploring the potential of fused imaging and Lidar data for seabed classification
The exploration and classification of the seabed have always been crucial for various scientific, environmental and commercial purposes. Traditional methods of seabed classification have relied heavil...
A new catalogue of Antarctic submarine canyons
Submarine canyons, carved into continental margins worldwide, play a key role in ocean circulation, sediment transport and marine biodiversity. Around Antarctica, their influence extends to global the...
The race to map the ocean floor: tackling the remaining 70%
What will it take to map the remaining 70% of our planet’s seafloor in just five years? That’s the challenge facing the Nippon Foundation-GEBCO Seabed 2030 Project, a global initiative to deliver ...
The many ways we discover the hidden seabed
From the earliest voyages across uncharted waters, the ocean floor has stirred human curiosity. Despite breakthroughs on land and in space, the seabed remained one of Earth’s final frontiers. In 201...
Science and Technology Board propels US Navy towards a hybrid fleet
The navy-after-next will be a ‘hybrid fleet.’ This concept was first articulated by then-Chief of Naval Operations (CNO) Admiral Michael Gilday and embraced by his successor, Admiral Lisa Franchet...
Mapping the largest known cold-water coral reef habitat
More than a decade of mapping and exploration work by federal, academic and private-sector partners has uncovered what has been deemed the largest deep-sea coral reef habitat mapped to date. Spanning ...
Highs and lows: surveying at different altitudes
The term ‘digital twin’ has gained significant popularity in recent years, becoming a buzzword in various industries, particularly in the context of emerging technologies and innovations. Hypes co...
Sound speed or sound velocity profiling: which is technically correct?
Hydrographer and researcher Elias Adediran unpacks a common misconception in hydrography: is it really ‘sound velocity profiling’ or should we be saying ‘sound speed profiling’? Drawing on ind...
How I accidentally became a multibeam trainer
When Jonathan Beaudoin delivered his first multibeam training session, it wasn’t part of some grand plan – it started with a phone call and a willingness to say yes. Two years and more than 50 cou...
Canada’s pioneering role in hydrography
Manon Larocque oversees hydrographic efforts across one of the most geographically vast and diverse maritime regions in the world. Here, she shares her perspective on Canada’s influential role in th...
Integrating the continuous hydrographic datum and DEM for maritime boundary delimitation
The delimitation of maritime boundaries plays a significant role in preserving a country’s sovereignty and jurisdiction. Their determination justify a country’s rights, allowing coastal states to ...
Robotic intelligence for subsea cable inspection
Everyday life around the world depends on a global network of over 500 subsea cables that silently carry 95% of all international data [1]. These cables stretch more than 1.4 million kilometres across...
