Category Archives: Hydro/Marine

The Royal Navy submarine HMS Astute. Credit: LA(Phot) Paul Halliwell/MOD.

Quantum Navigation

Above: The Royal Navy submarine HMS Astute. Credit: LA(Phot) Paul Halliwell/MOD. Will freezing sub-atomic particles one day supplant GPS as the primary navigation technology? Many of the most accurate measurement devices, including atomic clocks, work by observing how atoms transfer between individual quantum states. The longer the atomic transition can be observed, the more precisely it...

Shannon Hoy on the bow of the RVIB Nathaniel B. Palmer as she crossed through the Bransfield Strait in 2011. Photo by A. Margolin.

Epiphany on the Bow

Above: Shannon Hoy on the bow of the RVIB Nathaniel B. Palmer as she crossed through the Bransfield Strait in 2011.  Photo by A. Margolin.  A student’s journey from marine biologist to ocean mapper. Ever since I can remember I’ve wanted to work in ocean sciences. From when I was a child splashing in the tidal...

This data was gathered in shallow water in and around Bristol docks, UK and processed with GeoSwath, an echosounder by Kongsberg Maritime.

Capturing More with Shallow-water Multibeam

Interferometric sonars are providing a new tool for the hydrographic surveyor in shallow to medium-depth water applications. As we begin to return to normalcy after the deepest recession of most of our lifetimes, many ports, coastal authorities, and inland waterways are starting to look at infrastructure projects that have been kept on hold, and they...

Mapping the Scottish Seabed

Six companies collaborate on a project to bury fiber optic cables under the Scottish seabed, stitching segments using hydrography, bathymetry, and surveying. On land, surveyors face challenges due to rough terrain, human activity, weather, and more. Usually, however, the ground beneath their tripods doesn’t move, they can physically occupy positions, and the air between them...

The geospatially aware Jackal robots are configured with different imaging and navigation systems depending on the needs of the autonomous application.

Robot Revolution

Clearpath Robotics CEO Matt Rendall discusses unmanned systems, land survey, and robotic industry trends.   The robot revolution is hitting a big milestone. Robotic use is expanding beyond research activities, aerial applications, and industrial manipulators through a new kind of deployment: the service robot. These robots are autonomous, they’re geospatially aware, and they can manipulate...

Finding Fish Hotspots

Marine scientists bring multiple technologies together to locate reef fish aggregations, working towards healthy reefs and island economies. The livelihoods of tropical island communities depend on the vitality of reef fishes, either directly through recreational and commercial fishing or indirectly through healthy coral reef ecosystems that support eco-tourism. Yet, over the last several decades, the...