Bathymetric surveys: improvements and barriers
Since the 1970s, remote sensing has increasingly been used to conduct underwater surveys. Several methodologies are employed in hydrographic surveying, from direct techniques such as probing rods to m...
Long-term observations of beach topography and nearshore bathymetry
To understand coastal change and anticipate what our future coast will look like, scientists carry out regular field surveys in the form of beach profiles and digital elevation models (DEMs). Until no...
MBES feature detection using machine learning
Manually examining the seafloor for objects such as wrecks requires a great deal of time and labour, both at sea and in the office. As time is a limited and costly factor, the industry is constantly s...
Marine habitat maps from hydrography and machine learning
Aside from being able to monitor water depths, the most recent multibeam echosounder sonar (MBES) systems can also simultaneously record the reflected intensities from different seafloor surfaces. Wit...
How airborne bathymetric Lidar helps to protect marine environments
Hexagon is working with Beneath The Waves, a conservation NGO, to help protect marine environments in the Bahamas. Using bathymetric airborne Lidar solutions, researchers are able to map, study and qu...
Surveying the seabed for the Danish energy island
The Danish government is building an energy island in the North Sea, 80 kilometres off the coast, with the aim of accelerating the energy transition. The ambition is that the island becomes a role mod...
The Promise of Autonomous Marine Operations
The transition to autonomous marine operations is a promising process in full swing. The advantages of carrying out hydrographic or oceanographic tasks autonomously weigh heavily against the tradition...
Addressing change in coastal environments with advanced topobathymetric elevation modelling
Morro Bay, a shallow coastal estuary located near San Luis Obispo, California, supports an abundance of wildlife and is home to a vibrant outdoor community. But changes – such as sedimentation and a...
Innovations and Partnerships in Ocean Mapping: What More Could We Achieve?
Most people working in hydrography know very well that better ocean data can be used to inform a variety of decisions, from storm preparedness to helping develop the blue economy. But could we do more...
Development of digital bathymetric models from hydroacoustic and photogrammetric data
Unmanned vehicles, both surface and airborne, are increasingly being used for hydrographic surveying. While the technology of data acquisition using these platforms is generally known, the fusion of t...
Examining Developments in Constellations, Augmentation and Receivers
It is almost impossible these days to imagine geoinformation without GNSS, and even most geodetic services have switched to GNSS to maintain their geodetic reference network, rather than using traditi...
Creating a 3D Model of the Famous Budapest Chain Bridge
Two Hungarian companies designed a three-step data collection workflow to overcome the challenges in this urban surveying project in Hungary, which included the use of UAVs and remote-controlled boats...
The synergies of exploring deep-sea ecosystems and icy moons
In recent years, terrestrial and extraterrestrial ocean research have increasingly joined forces to merge expertise and technical solutions in the exploration of marine systems on Earth and in space. ...
Satellite-derived bathymetry for surveying Jamaica’s coastal waters
The national land agency in Jamaica has integrated satellite-based hydrography to benefit from time efficiencies, cost savings and improved safety as part of its hydrographic programme in support of t...
