Submerged Munitions, No Hazard Left Undetected

Minimum Requirements for Munitions Detection at Sea
Munitions in the sea pose a risk to the sustainable development of the ocean economy. In particular, they remain a global challenge during the construction of wind parks, pipelines and other infrastructure. To ensure high-quality performance during the execution of the necessary maritime munitions detection and clearance operations, industry experts and scientists from Germany have defined a set of requirements. These are particularly important in the detection phase which requires the attention of hydrographical surveyors. Safe access to large areas of the seafloor is a prerequisite for offshore economic development. However, this ability has been compromised by the presence of... (read more)
2020-07-20 02:06:12

Fugro Starts Vattenfall Site Investigations at UK Offshore Wind Farms

Fugro has begun a four-month marine site characterisation campaign for Swedish energy group Vattenfall at two major offshore wind development sites located over 40 km off the coast of Norfolk, UK. The resulting Geo-data from Fugro’s geotechnical investigations will feed into the ground model for the Norfolk Vanguard and Norfolk Boreas wind farms, which will have a total installed capacity of 3.6 GW, enough to power more than 3.9 million homes. Working from its dynamically positioned (DP2) geotechnical drill ship Fugro Scout, Fugro is performing surveys and sampling using its proprietary SEACALF Mk V DeepDrive cone penetration testing system at both sites, and will... (read more)
2020-07-20 10:50:25

New Autonomous Guard Vessel Concept Design to Revolutionize Offshore Wind Industry

The concept design of an Autonomous Guard Vessel (AGV) revealed earlier this month could well revolutionize the offshore industry. The futuristic-looking design has been created by a consortium of maritime companies looking to support the offshore industry by exploiting technology available today. The novel design is smaller and lighter than most current guard vessels used to protect offshore operations and boasts sustainable solutions while exploiting the benefits of autonomous shipping. In addition, the AGV is set to operate more efficiently as well as require lower operating costs due to no crew being required. This clean and lean concept to replace conventional... (read more)
2020-07-13 09:50:39

Fugro’s Subsea Engineering Solutions Key to Ireland’s Corrib Gas Field Integrity

Fugro has used the survey vessel Edda Sun to deliver an inspection, repair and maintenance (IRM) project for Corrib, Ireland’s biggest natural gas field, on behalf of Vermilion Exploration and Production Ireland Limited (Vermilion). The project included deepwater pipeline surveys, inspection of subsea structures, and maintenance tasks using Fugro’s FCV3000 remotely operated vehicle (ROV), and the Edda Sun is now returning to the North Sea to continue its 2020 IRM programme. Before mobilizing offshore, Fugro combined subsea virtual simulation, engineering design and physical testing to develop a predictive understanding of the offshore inspection and maintenance tasks. This provided in-depth knowledge of... (read more)
2020-07-07 08:41:07

Fast-moving Waterfalls in the Deep Sea

New research led by the National Oceanography Centre (NOC) has discovered how fast-moving waterfalls under the sea control the shape and behaviour of submarine channels. These underwater channels are the offshore equivalents of rivers, but can be much larger. Submarine channels can extend for tens to thousands of kilometres offshore, providing an important conduit for the transfer of sediment, nutrients and pollutants, such as microplastics, to the deep sea. Avalanches of sediment that flow down these channels also pose a hazard to networks of seafloor cables that underpin global communications, including the internet. An international research team, including NOC, the... (read more)
2020-06-19 08:49:37

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

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

Research Expedition to Map Scottish Seabed

Slow Recovery of Coral Reef Shows Impact of Bottom Trawling
Newly developed 3D imaging technology has allowed scientists to map Darwin Mounds, a unique area of cold-water coral reefs off the coast of Scotland, to see whether it has recovered since being declared a Marine Protected Area sixteen years ago. The images show that in areas of the Darwin Mounds that had been heavily trawled, coral growth is still very sparse, and there has been no real recolonization. However, healthy coral growth was found in parts that had only been minimally damaged by bottom trawling, indicating that marine conservation measures are most effective when they are put in place before damage occurs.... (read more)
2020-05-18 01:46:12

Dutch Flood Defence, the Natural Way

When the Dutch government and research institutions wanted to monitor how waves and currents would affect the pioneering use of artificial sand banks to protect a levee in a non-tidal freshwater system, Nortek was selected to supply key measuring instruments and set up the data telemetry system. The Houtribdijk is a 25km-long levee, or dike, separating two large artificial lakes, the IJsselmeer and the Markermeer. The lakes and accompanying levees protect the Netherlands from the forces of the North Sea’s extreme weather events, and from flooding from inland freshwater river systems. After years of exposure to the elements, the Houtribdijk... (read more)
2020-05-07 03:17:31

Joining Forces to Create a Communication System for USVs

SEA-KIT International, a provider of hi-tech solutions for the maritime and research industries, is joining forces with Essex academics to create a secure and intelligent communication system for the control of unmanned surface vessels (USVs). Essex (UK)-based SEA-KIT has won funding as part of a Knowledge Transfer Partnership (KTP) by the UK government’s innovation agency, Innovate UK. The funding will help SEA-KIT to commercialize its USV offer by building bespoke vessels for its clients in the offshore energy sector who conduct surveys for offshore wind and oil and gas infrastructure. Create New Jobs Innovate UK and the University of Essex... (read more)
2020-04-21 12:18:04
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