First Fully-autonomous Shallow Water Survey

Geodata specialist Fugro has completed the Middle East’s first fully autonomous geophysical shallow-water route survey. Controlled from their remote operations centre in Abu Dhabi, an unmanned surface vessel (USV) captured a full range of geophysical data across a survey area of some 40km out from the coast of Abu Dhabi to support a client’s critical project, entirely remotely. The results of the fully autonomous geophysical shallow-water route survey comprised conductivity, temperature, depth and salinity (CTDS) profiles, bathymetry data, seabed imaging, sub-bottom profiles, and ferrous object detection such as pipes, etc. The efficiency gains and material reductions from using Fugro’s remote... (read more)
2020-06-24 12:34:11

Using Unmanned Surface Vehicles for Bathymetric Dam Imaging

A North American Case Study with Wide-ranging Applications
Inspection of dams is a high-risk task for divers because of strong currents and eddies. The use of emerging technologies such as unmanned surface vehicles equipped with echosounders and sonars can lower those risks. Such systems can perform subsurface dam inspections quickly and effectively without putting humans at risk, as this US case study shows. Overused roads, outdated railway systems, brittle power grids, crumbling bridges and suchlike all take a toll on the economy and, tragically, sometimes even lead to loss of life. Failing infrastructure is an issue for most countries, and likely more so in developed nations that still... (read more)
2020-06-16 09:28:06

Luigi Sinapi Elected as New IHO Director

Following the postponement of the IHO Assembly due to the Covid-19 pandemic, the IHO Secretariat initiated a remote voting procedure to fill the position of IHO Director, which will become vacant in September 2020. As a result of this process, during which Member States could vote by either paper or electronic ballots, Rear Admiral Luigi Sinapi from Italy has been elected as the new director.  Rear Admiral Luigi Sinapi has been director of the Italian Hydrographic Institute of the Navy since 2015, and as such has worked closely with the IHO and its various bodies for many years. For the last... (read more)
2020-06-09 11:17:38

MEMS Technology – Applications in the Field of Hydrography

Even in the difficulty times facing society today, training does not stop, as demonstrated by the 'MEMS Technology – Presentation and Hydrographic Application' conference held by video conference on 26 May on the GoToMeeting platform. The conference was organized by SBG Systems, Institute Nautical ITTL Luigi Rizzo di Riposto (CT), and IHS Italian Hydrographic Society. MEMS stands for Micro Electro-Mechanical Systems and indicates a technology that integrates mechanical elements, sensors, actuators and electronics located at the level of a silicon substrate.The conference was attended by many experts from the hydrographic sector: Rear Admiral Luigi Sinapi, director of the Italian Hydrographic... (read more)
2020-06-09 10:25:32

Subsea Autonomy is Moving Beyond Waypoints

Underwater an AUV Must Rely Upon its Own Sensor Network
The AUV has been the tool of choice for shallow-water MCM and EOD operations for a number of years. The coverage by popular news channels of unfortunate events, such as the MH370 tragedy, has also shown that the AUV has undisputedly become the tool of choice to carry out salvage operations at extreme depths. The AUV has no physical link to the surface and the majority of missions are still pre-programmed by a human, which can be time consuming and error prone. Missions are normally a sequence of defined waypoints where the AUV may be required to carry out certain... (read more)
2020-06-09 09:41:02

Mapping Underwater Terrain with Bathymetric Lidar

Two Similar Projects in Different Parts of the World
High-resolution bathymetric surveys support aquaculture research and increase navigational safety. In a case study, Tim Webster reports how this is done at Cape John Peninsula in Canada. In the second one, Carol Lockhart describes the project in the Kingdom of Tonga, a Polynesian archipelago comprising 169 islands that stretches across approximately 800 kilometres in the South Pacific Ocean. Measuring water depth for nautical purposes dates back to ancient civilisations. As technology has evolved through the centuries, besides ship-based echo-sounding, remote monitoring and mapping of water bodies has become increasingly available via Lidar bathymetric surveys conducted by airborne systems. New coastal... (read more)
2020-06-09 09:01:41

Fugro Detours for Ifremer’s Mayotte Underwater Volcano Survey

A Fugro vessel heading from the Netherlands to South Africa has made a ten-day detour to support Ifremer, the French Research Institute for Exploitation of the Sea, in monitoring a giant active underwater volcano off the east coast of Africa. Ifremer is performing important research on this unique volcano, but the latest mission was thrown into jeopardy by the Covid-19 pandemic and associated travel restrictions. When Fugro heard, they diverted the specialist hydrographic survey vessel Fugro Gauss to Mayotte in the Mozambique Channel to support Ifremer’s vital hydrographic survey. Fugro’s global hydrographic footprint, combined with its sustained investment in remote... (read more)
2020-05-27 10:58:34

Scientific Challenges in a Crucial Region for Planet Earth

Remote, Frozen, Critical and Changing: the Weddell Sea
Located in the Atlantic sector of the Southern Ocean, the Weddell Sea generates extremely dense bottom water that spreads into all the world’s ocean basins, transporting oxygen, CO2 and other solutes. Everything that is added here is transferred into the abyssal oceans, including anthropogenic CO2. However, changes are taking place in the Weddell region that will have an impact on other oceans and on the global climate. The Weddell Sea (Figure 1) is a huge embayment between the Antarctic Peninsula and the Antarctic continent, situated at the southern edge of the Atlantic Ocean. The boundary of the Weddell Sea to... (read more)
2020-05-26 08:28:56

Dutch Survey Company Selects Sea Machines Autonomy for Unmanned Hydrographic Survey Operations

Underwater survey company Deep will upgrade one of its survey vessels with a Sea Machines SM300 autonomous control system. The Sea Machines system enables remote command of the vessel, including navigation and positioning, the control of on-board auxiliaries and sensors, and ship-to-shore data flow. The vessel, operating in multiple areas of the Wadden Sea, will be commanded by personnel in the Amsterdam office. Deep will initially deploy the Sea Machines-enabled vessel for a mission to survey the Wadden Sea, a challenging shallow body of water with tidal flats and wetlands located north of the Netherlands. With no surveyors on board the vessel... (read more)
2020-05-25 11:06:30

How Remote Acoustic Technologies Can Protect Marine Life

From hydrophones attached to buoys or autonomous vehicles to a passive acoustic monitoring system, WHOI scientists and engineers have developed innovative methods to monitor marine mammals in real time. The idea is simple: if authorities are aware of the presence of migrating whales, they will be able to tell ships to slow down, drastically reducing the likelihood of a fatality. Remote acoustic technologies can also alert scientists to a stranding event, buying critical time to save the animal’s life. Ships and fishing gear are not the only man-made hazards that whales face. Noise in the marine environment also causes distress,... (read more)
2020-04-28 12:21:57
Search Filter