Reference Area for Multibeam Bathymetry and Backscatter

KWINTE, a Dedicated Quality Control Area in the North Sea with Stable Seabed
Hydrographic measurements are nowadays usually carried out using multibeam echosounders (MBES). The measurements obtained by each operational hydrographic vessel need to be regularly controlled on a well-known area to validate the quality, both for bathymetry and backscatter. This can now be done in a small area in the Belgian part of the North Sea (KWINTE) with a stable and homogeneous seabed. Multiple high-quality surveys over this area have enabled the construction of a reference bathymetric and backscatter model. Extensive survey work over the KWINTE reference area has been carried out by Flemish Hydrography (VH) and Continental Shelf Service (COPCO) during the last decade, using... (read more)
2020-12-04 03:58:20

First Aerial Drone-dipping Sensors Take Off with Valeport

A new system for autonomous airborne hydrographic surveys has been launched by THURN Group. The THURN QuickDip system of data collection uses aerial drones to carry Valeport sensors on pre-planned survey routes to deliver an efficient and repeatable method of gathering highly accurate survey data from inaccessible or dangerous waters. UK-based THURN Group developed the innovative QuickDip technology for inland and coastal waterways to offer a range of benefits, including rapid data collection from multiple sites of interest, repeatable map-based surveys to monitor change detection, and the ability to safely collect data from difficult-to-access and dangerous waters, as well as... (read more)
2020-11-30 10:37:40

High-resolution Survey on Versatile USV

Skansen is a historic area in the city of Trondheim in central Norway and home to the Skansen Bridge, a 52m span bascule railway bridge that opens for marine traffic to access the Trondheim Fjord. The Skansen Bridge was built in 1918 and designed by structural engineer Joseph Strauss, who also designed the Golden Gate Bridge in San Francisco. The displacement of rocks and other objects in shallow waters over time can result in structural integrity issues for bridge piers such as the Skansen Bridge and hazards for vessel traffic, so that regular inspection of the structural integrity is required... (read more)
2020-11-23 04:09:52

M&E Deploys Autonomous Survey Vessel on Florida Reef Survey

Morgan & Eklund (M&E) recently announced the successful completion of a multibeam and side-scan sonar survey to map and monitor an artificial reef offshore Fort Pierce along the Treasure Coast of eastern Florida. A post-construction survey was completed entirely using a SeaRobotics (SR) 'Surveyor Class' autonomous surface vessel (ASV). The objective of the survey was to verify seafloor conditions and accurate placement of artificial reefs. With its catamaran hull design, the SR-Surveyor M1.8 is an autonomous platform equipped with a multi-sensor package, that includes an EdgeTech 2205 multibeam echosounder, a 1,600kHz and 540kHz dual-beam side-scan sonar, an AML Oceanographic SV... (read more)
2020-11-17 09:07:26

Introducing mAUV – MARIN’s Modular Autonomous Underwater Vehicle

Research Platform with Unique Six Degrees of Freedom Control Capabilities
Autonomous underwater vehicles are becoming more and more common in the maritime industry, and technology is rapidly developing for different applications, such as inspection, maintenance and surveillance. Meanwhile, more advanced autonomous capabilities are required, to be able to perform complex tasks and challenging missions. The Maritime Research Institute Netherlands (MARIN) has designed and built a modular Autonomous Underwater Vehicle (mAUV) for research projects in its model basins. The objective of this research effort is to expand the knowledge of vehicle control and to gain a better understanding of autonomous underwater operations. MARIN has a lot of previous experience with dynamic... (read more)
2020-10-30 08:56:05

State of the Art in Multibeam Echosounders

The Evolution of a Bathymetric Workhorse
Although the single beam echosounder is still in use, it has over the last 25 years gradually been replaced with new and less expensive multibeam echosounder (MBES) systems. And, although some side-scan sonar (SSS) systems also offer bathymetry, the MBES is the go-to system when it comes to bathymetry today. MBES technology has gone through an evolution rather than a revolution in recent years. In this article, we focus on the current state of the art for this bathymetric workhorse. The Multibeam Echosounder The main function of an MBES is to detect a number of depths along a swath of... (read more)
2020-10-30 08:32:19

Fugro Marinestar to Sponsor Hydrographic Data Acquisition & Processing Weeks

Fugro Marinestar, provider of a range of GNSS positioning services worldwide tailored for the dredging and marine construction, navy and hydrographic, wind farm and oceanographic research sectors, has become official sponsor of the Hydrographic Data Acquisition & Processing Weeks organized by Hydro International. The online event will consist of a dedicated web page, extra newsletters and the bumper-packed November-December issue of Hydro International, the global magazine for the hydrography industry. During the Hydrographic Data Acquisition & Processing Weeks (9 November – 21 December), which will be supported by an abundance of new articles, columns, Q&As, videos and other new content, the Hydro International community... (read more)
2020-10-21 02:59:09

Ultrabeam and USS Join Forces to Deliver Autonomous Pipeline Survey

Ultrabeam Hydrographic, a hydrographic survey company, recently teamed up with Unmanned Survey Solutions (USS) to conduct two subsea gas pipeline inspection surveys in Northern Ireland. Both companies are based in the UK and offer unmanned platforms as an alternative to traditional manned survey vessels.   The contract was awarded by Mutual Energy, who were keen to gain experience on how unmanned autonomous platforms can increase the knowledge of their pipelines while reducing risk and overall cost. Shane Rafferty, group engineer explained: “Mutual Energy contracted with Ultrabeam Hydrographic in August 2020, following an open competitive tendering process, to perform inspection surveys of... (read more)
2020-10-20 10:03:13

The Road to Autonomy: Unmanned Subsea Asset Inspection

Reducing Requirements for Manual Intervention
In 2019, Swire Seabed successfully used a novel AUV/USV solution to complete a commercial pipeline inspection campaign, surveying 175km of pipe. This involved use of a HUGIN AUV paired with the Sea-Kit Maxlimer USV. The 2019 survey campaign formed the final part of a developmental project involving Swire Seabed, EIVA, Kongsberg and Sea-Kit in which inspection work scopes were completed for Equinor. In this, emphasis was placed on the automation of survey processes, allowing remote command and control of operations. This work typifies the direction in which the industry is heading, with many survey companies now seeking to reduce requirements... (read more)
2020-10-20 08:58:57

Valeport Gets On Board with the Mayflower Autonomous Ship Project

The Mayflower Autonomous Ship, which is set to self-navigate across the Atlantic in Spring 2021, will be fitted with the new Valeport uvSVX and a Valeport altimeter to provide vital precise underwater depth data which will help to protect the vessel and the onboard technology on its epic journey. Sailing from Plymouth, UK, to Plymouth, USA, the Mayflower Autonomous Ship (MAS) will trace the route of the original 1620 Mayflower to commemorate the 400th anniversary of the famous voyage. With no human captain or crew, it will become one of the first full-sized, fully autonomous vessels to cross the Atlantic.... (read more)
2020-09-29 10:16:03
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