The Teledyne Marine Channel

Computing Discharge in Real Time using the Q-Track Automated Continuous...

Mon, 03 Feb 2020 09:28:05 GMT

The Central Midwest Water Science Center has developed, installed, and operated an automatic system for computing discharge. The Q-Track system, as it is known, consists of a TRDI acoustic Doppler velocity meter (ADVM) attached to a carriage that traverses vertically on a track assembly on the side of the canal. The system is controlled by a data logger and computes discharge in real time. The Q-Track system is installed at a site that is the subject of much litigation and for which the discharge is very unsteady. The Q-Track system is being evaluated as an alternative to 'standard' approaches used by the USGS to compute continuous discharge records at this location. This talk will present the results of an evaluation of two methods for computing real-time discharge using the Q-Track system, the mid-section method and the horizontal slice method. The methods for computing discharge will be presented, along with the assumptions and limitations inherent in the method. The discharges computed using Q-Track are compared to the “official” discharge record at the site, which makes use of the index-velocity method.

Presented by:

Kevin Oberg
USGS

Measured Flow Disturbance Around Different ADCPs and Mounts

Thu, 23 Jan 2020 09:57:05 GMT

NVE has mesured flow disturbance around various ADCPs and mounts/floats/trimarans to try to confirm or dispute previous studies by OSW, USGS. The background/reason for doing this is that after starting to use the OSW, USGS extrap/qrev software and alarming number of measurements show tat the vertical velocity distribution shall be constant/no-slip, and not power/power. The method has been to drive long reaches on a still lake and to compare the water velocities close to the instruments by the velocities at some depth. If no flow disturbance, they will be the same. If disturbed flow, there will be a difference.

Presented by;
Kristoffer Florvaag-Dybvik
NVE (Norwegian Water Resources and Energy Directorate)

Using Multibeam SONAR Technology Through the Life of Marine Construction...

Mon, 20 Jan 2020 09:07:29 GMT

In marine construction projects, work is often done “in the blind”. Using multibeam SONAR technology can aid this process in all phases of the project. Pre-construction scans can provide a base line look at an area. This can help put real numbers on quantities as well as highlight any anomalies in the project area that may have otherwise gone unnoticed. This additional information increases the accuracy of estimates and the effectiveness of planning. During the construction phase, multibeam SONARs mounted on construction barges can provide real-time progress updates allowing the operator to work with the most up to date information. The SONAR data integrates seamlessly with marine construction machine guidance software to create a total solution package. In the Post-construction phase, multibeam SONARs can be used to create As-Built surfaces of the finished product as well as validate that build specifications were met. This presentation provides recent, real-world examples of multibeam SONAR use during marine construction project phases as described.

Learn more about Teledyne Marine dredge and construction solutions>

Presented by:
Nathan Keys

Measutronics

at Teledyne Marine Technology Workshop 2019

Teledyne RESON SeaBat T-Series Multibeam Sonars and Turbidity in Real-Time...

Fri, 10 Jan 2020 15:14:10 GMT

During most dredging operations, survey verification of having met grade and other contract requirements comes after the dredge has completed its work in a designated work area and hence moved on. What if the post-dredge survey reveals that the dredge has not fully met contract obligations? When this happens, the additional time, effort and expense to get the dredge back into position to remove what was missed can undermine the success of a project. What if the dredge operator could have “eyes under water” and confirm that grade requirements have been met before moving on?

During dredging operations, the material on the bottom is disturbed and released into the water column. Turbidity is a measure of the presence of suspended particulates. The more suspended solids in the water column, the higher the turbidity. High turbidity can create issues for sonar performance in that the suspended solids act as an acoustic reflector.
As barge mounted sonars are being used in the marine construction industry more frequently, dredge operators are considering the use of sonar to provide information in advance of post-dredge surveys. The “As-Building” benefits can be substantial but there is a concern over the effect turbidity can have on the acoustics.

Utilizing the Teledyne RESON SeaBat T-Series advanced bottom tracking abilities in various dredging operations, with varied levels of turbidity, we have begun to both demonstrate the value and quantify the limits of sonar usage during dredging operations. This presentation presents our results thus far.

Presented by:
Keith Dixon
Measutronics Corporation

At Teledyne Marine Technology Workshop 2019

Experimental verification of underwater noise localization based on...

Wed, 20 Mar 2019 13:58:27 GMT

To improve the stealthiness of underwater vehicles, or reduce impacts of vessels on the marine environment, it is necessary to identify their noise sources. Furthermore, the proper acoustic control and management of underwater noise radiation of vessels is critical during the intended upgrades and operational service.

Near-field acoustic holography (NAH) is a technology that acquires sound pressure in the vicinity of the hull, which can be back-propagated to locate the hot-spot on the hull and forward-propagated to predict the far-field radiated noise of the vessel. With OROS Underwater Holography software, which is the only underwater NAH solution in the market, the use of NAH for noise localization and far-field prediction will be presented through the findings from an experimental study on a large scaled model. Considering the typical shape of underwater vehicles, cylindrical NAH is adopted to provide the highest accuracy. A partial circular array consisting of 25 RESON hydrophones is placed in the vicinity of the hull to measure sound pressure. A shaker excited at random is mounted in the hull to simulate a source, whose location is known. The acoustic maps generated from the experimental measurements show good correlation between the hot-spot location and the known source location, verifying the correctness and efficiency of NAH technology in naval applications.

Presented by:

Guillaume Cousin
Oros

ADCP Data QA: Overview to Advanced (Oceanographic)

Fri, 15 Mar 2019 09:02:04 GMT

Outline

Overview of the ADCP Data Types
Methodology for Data Reviewing: Key Data Quality Indicators
Review of Example Data Sets from WH and Sentinel V ADCPs – Learn Data Displays: 2D Profiles, 2D Time Series, 3D Profiles, and 3D Time Series

Presenter:
Darryl Symonds
Teledyne Marine

IDH T-50, BV5000, and LiDAR Mobilization on a Fast Response USV for Canal...

Fri, 08 Feb 2019 09:25:32 GMT

The California Aqueduct is the principal water-conveyance structure of the California State Water Project. From the Sacramento River delta east of San Francisco, it runs south 444 miles (715 km) and is the world’s largest water-conveyance system. Channel sizes vary along the aqueduct, varying from 40 feet (12 meters) to 150 feet (45m) wide at the base, with 30 feet (9 meters) average depth of flow. Additionally, with its unique mixture of over chutes, under chutes, and utility crossings, it has a height clearance limit of 24 inches (0.60cm). Constructed starting in 1960, there are concerns that fluctuating land-surface elevations due to subsidence and uplift in the valley could cause serious operational-maintenance and design construction problems for the California Aqueduct surface-water delivery system. As a result, the California Department of Water Resources has undertaken this study to develop a greater understanding of the location, extent, and magnitude of subsidence along the California Aqueduct, as well as to help understand the relationship of groundwater levels and land subsidence. Since 2005, there have been three unsuccessful attempts to field test a vehicle capable of transiting the canal system with minimal need to recover the vehicle, while having the ability to carry high-resolution multibeam and LiDAR sensors. In December of 2017, Seafloor proposed the development of a 15 foot (4.5m) catamaran vehicle, capable of 8 hours endurance, less than 60cm in overall height, and capable of carrying an IDH T-50 multibeam and high resolution LiDAR sensor. This presentation will produce the results of that program.

Presented by
John Tamplin
Seafloor Systems

Survey, dredge monitoring, search and removal of objects and disposing of...

Thu, 07 Feb 2019 11:43:59 GMT

-Short presentation of the Port of Antwerp

-Short presentation of the our surveyvessel "Echo"

Built and tasks

-dredging and processing contaminated mud, how we deal with it.

Presenter:
Kurt Stuyts
Port of Antwerp

Use of AUV in shallow water, return of experience and expectations.

Wed, 16 Jan 2019 11:20:26 GMT

Using AUV since 2014 for shallow water survey mainly in West Africa in some of the most difficult area; zero visibility up to 4.5Kts surface current, ... We perform all the type of survey required by O&G offshore construction (pre-lay, as-laid, as-build). Taking advantage of acquired experience , we are now having some expectation for the near future.

We will also show the use of BV5000 as used in Niger delta for metrology purpose.

Presented by:
Eric Guilloux
Saipem

Survey and positioning in windfarm construction - the next level

Wed, 16 Jan 2019 11:14:19 GMT

Showing the importance of using high grade survey equipment in reducing installation cost and time, as well as where survey plays a part where you least expect it, for example, when upending a monopile.

Learn more about Teledyne Marine dredge and construction solutions>

Presenter: W. Kanneworff

Van Oord Offshore Wind

Current and future applications of acoustic scanning in marine engineering...

Tue, 15 Jan 2019 08:29:01 GMT

The study highlights the advantages of using acoustic scanning in the survey of key walls, piles, defensive and other civil marine engineering structures, addresses existing and potential problems with this method and suggests a direction for future improvement. It is based on the summary of 25-year experience of marine engineering surveys by GT Corporation SE (Estonia) and its partners, with 10-year experience in acoustic scanning. The key distinction of mentioned application is in very rigorous quality requirements for engineering surveys, very small size (0.5-2cm) of details required, as well as technical problems of scanning vertical structures with high reflective capabilities due to high inclusion of metal components. An additional difficulty are the weather conditions and water qualities specific to the Baltic Sea. To solve this task, the company and its partners use multiple Teledyne products, including PDS software, Seabat T20, Seabat T50, Blueview scanners, all of which will be mentioned during the report with examples of use. Based on the multiple use cases, potential future applications, and expanding engineering survey market it can be seen that a specialized new scanner product type specifically designed for engineering surveys can be used to provide even more informative and higher quality data to potential customers.

Presenter:
Igor Burovenko

GT Corporation SE

The application of Teledyne RESON products in coastal area dredging works

Mon, 14 Jan 2019 14:36:33 GMT

Dutch Dredging is using many Teledyne Reson products integrated in its vessels dredging systems. This presentation focusses on Teledyne Reson products that mix effortlessly in existing dredging systems, but also on what it can offer in the construction of new vessels.

How

Result

Conclusion

Presenter:
Wilhelm Roth

Baggerbedrifjt / Dutch Dredging

USV (Unmanned Surface Vehicle) RSV Sea Observer deploying the Seabotix ROV...

Mon, 14 Jan 2019 14:02:53 GMT

For some years now, autonomous vehicles achieve more and more hydrographic survey operations. Their fields of action are becoming more extended and they allow reducing the costs of this type of intervention in comparison with conventional survey means.

If typical marine survey can be now well achieved thanks to USV, from inshore and coastal areas to open oceans and offshore bathymetry, the autonomous and remote monitoring of sensitive submarine works and subsea observation, in particular in congested areas and hazardous environment, are challenging.

More and more marine works companies faces to this issue, including in the offshore oil and gas sector, such as NPCC in UAE (National Petroleum Construction Company).

This is to answer this gap, that Marine Tech, a French-based company, developed the RSV Sea Observer, equipped with Teledyne Seabotix ROV vLBV300: the first USV deploying ROV (Remote Operated Vehicle) for coastal and offshore missions.

This project led up to the development of motorized winch integrated onboard the USV deploying the ROV vLBV300 up to 100m water depth and umbilical tensioning system providing a perfect winding. Coupled with an articulated platform at the back of the USV, the ROV is launched and recovered easily and safely and protected during transit.

The communication between ROV and RSV was part of the development, as well as the autopiloting with Dynamic Positioning of the USV, with relative acoustic positioning (USBL) ensuring ROV tracking.

This new generation of USV has capabilities for both coastal offshore survey autonomously, thanks to sonars (multibeam echosounders and side scan sonars), and also for subsea visual monitoring and inspection thanks to the ROV.

Presenter:
Thierry Carlin

Marine Tech Sas

Deploying lightweight ROVs for EOD operations

Mon, 14 Jan 2019 11:31:17 GMT

Rapid technical advancement has seen a move away from more traditional methods of sub- sea operations, such as the use of divers, in favour of using unmanned and remote vehicles. Remotely Operated Vehicles (ROVs) are now being extensively used in offshore and military operations for complex inspection tasks, and Dynamic Positioning (DP) software is used to reduce operator workload, provide stability to the mission platform, and allow for repeatable, automated tasks and inspections. Building a custom ROV system from the ground up is often stifled by high research and development costs and a relatively small market size for these specialized tasks.

One way to efficiently move into unchartered waters, so to speak, is to create a specialized system composed of existing commercial off the shelf (COTS) hardware and software components – effectively creating a vehicle that is more than the sum of its parts.

This presentation will discuss the challenges of designing a non-standard ROV system comprised of the best of breed vehicle hardware, sensor, and software systems that the market has to offer, regardless of manufacturer. Under the leadership of Space and Naval Warfare Systems Center Pacific (SSC Pacific), SeeByte collaborated with Teledyne SeaBotix and HDT to develop several smart ROV systems that are able to perform a range of capabilities and functions – including active intervention with underwater improvised explosive devices (IEDs) and IED neutralization. This project proved that custom ROV configurations can be created for some of the most challenging applications with the right software acting as the glue between the different hardware components.

Presenter:
Chris Haworth
SeeByte

An experience in using ADCP “Rio Grande 600 kHz” for investigations of the...

Wed, 09 Jan 2019 13:17:21 GMT

During several expedition seasons, starting from 2003, TRD Instruments- Europe provided us with ADCP Workhouse “Rio Grander 600 kHz” gratuitously supporting our studies at shelves of Russian seas. The first studies showed that the instrument designed for measuring sea currents can really have a much broader spectrum of functions. Primarily, it is true for measuring the intensity of the back-scattered signal, that feature allowing one to monitor different processes in the water bulk. In combination with simultaneously monitoring the background current, the ADCP becomes an exceptional instrument offering unreachable earlier possibilities in studying the processes in coastal regions of seas.

Presenter: Lisa Khimchenko
Repaired by: Andrey Serebryany, Shirshov Institute of Oceanology

Monitoring Currents with ADCPs on Wave Gliders

Thu, 29 Nov 2018 08:30:57 GMT

This presentation will discuss how ADCPs on Wave Gliders provide a viable and flexible way to get critical upper-ocean current data. ADCPs on Wave Gliders provide a more efficient way to get key oceanographic data. Operating unmanned vehicle is much less costly than operating ships. Carrying ADCPs on these unmanned vehicles provides a flexible and economical means for monitoring upper-ocean currents. Liquid Robotics Wave Gliders have demonstrated the power of this approach with deployments in locations and conditions around the world.

For scientific studies, Wave Gliders carrying ADCPs can simplify exploring upper-ocean responses to atmosphere forcing. This tool can also show current circulation patterns in sparsely-observed oceanic regions. Where currents are weaker, Wave Gliders with ADCPs can replace ships in some types of recurring surveys. As well as returning detailed and extensive data sets, this approach reduces costs and resources for operators and provides flexibility (e.g., changing profiles based on real-time samples). Examples include fisheries management, monitoring the marine environment, and providing indicators for El Nino and climate change.

Wave Gliders with ADCPs are likely to play an enhanced role in operational support for industry. They provide a unique means to see and deliver information about the underwater situation. This approach can improve safety and efficiency as well as reduce risks. It can also provide warnings where industrial activity overlaps with sensitive marine life and environments.

By: Ryan Carlon, Liquid Robotics Inc

Robots Talking to Robots: Using Acoustic Modems to Connect Ocean Systems

Thu, 29 Nov 2018 08:29:56 GMT

The Liquid Robotics Wave Glider has demonstrated great success as a host platform for acoustic modems. Numerous customer missions have employed these systems to provide seafloor to surface connectivity. In this presentation recent results will be presented. Customer experiences in oceanographic research will highlight the role of Wave Gliders with acoustic modems to:

• Locate and track underwater assets more efficiently and without a ship

• Act as a communications relay, allowing underwater assets to transfer data quickly and in near real-time

• Follow submerged autonomous underwater vehicle (AUVs) for in situ analysis of a drifting water mass

Examples of undersea assets supported will include fixed seafloor seismic research nodes, free swimming long-range AUVs and a seafloor crawling benthic rover. In addition to telemetry certain missions also make use of acoustic positioning to support undersea assets.

This presentation will describe the applications and integration of Teledyne acoustic systems on Wave Gliders.

By: Ryan Carlon, Liquid Robotics Inc

2017 New Products / Technology from Teledyne Vehicles - presented at TMTW2017

Wed, 02 May 2018 11:49:56 GMT

Migration of the California Dept of Water Resources to T-Series multibeam...

Wed, 25 Apr 2018 09:13:40 GMT

The State of California has been in a state of emergency drought for 100% of the State over the last 2 years and severe drought for the last 5. In April of 2017, the Governor of California ended the state of emergency for 95% of the State. Seafloor Systems has been involved in the acceptance and transition from older multibeam sonic technology to T-Series frequency agile multibeam systems in support of Engineering and Monitoring projects across the State, including The Oroville Dam spillway project, California Levee Infrastructure Stability Assessment Program, and the Folsom Lake Dam Auxiliary Spillway construction Project. This presentation will present and discuss the each of those projects, the problems presented, and the solution offered and executed.

Presented by:
John Tamplin
Seafloor Systems

Rocksteady QD - Acoustic Disconnection of Moorings with Extreme Loads

Wed, 25 Apr 2018 09:04:32 GMT

Moored drilling and production rigs operating offshore in harsh environments may be subject to extreme weather events such as iceburgs and hurricanes, that require controlled disconnection from their mooring system. Rocksteady QD is a mooring connector developed by SRP that can release with loads up to 900 metric tonnes, equivalent to 87mm R5 chain break load, it is operated remotely via a Teledyne acoustic modem and can be deployed for up to 5 years before battery replacement. Details of potential uses will be presented, as well as the integration of Teledyne technology in this system.

Presenter:

David Cobb from InterMoor

Seasonal to Decadal Variability in the Upper Ocean Scattering Layer in Drake...

Thu, 01 Feb 2018 10:00:37 GMT

The surface shoaling of nutrient-rich waters poleward across the Antarctic Circumpolar Current is responsible for the elevated productivity of the Southern Ocean. Over the last half century, the Southern Ocean has been warming at a faster rate than the global ocean as a whole. In particular, the Antarctic Peninsula region has undergone rapid atmospheric warming, significant glacial retreat and a decrease in seasonal sea ice extent, impacting krill and its predators. Improving knowledge of the Southern Ocean is a high priority for understanding the effects of climate change, but the harsh environment poses substantial observational challenges.

The U.S. Antarctic Research and Supply Vessel Laurence M. Gould crosses Drake Passage 2-4 times per month in all seasons, collecting underway data on transits between Punta Arenas, Chile and Palmer Station, Antarctica. High-resolution measurements of upper ocean temperature, salinity, velocity and acoustic backscatter, along with concurrent meteorological, surface water CO2 and nutrient measurements have been routinely acquired since the late 1990s. This study makes use of 238 acoustic Doppler current profiler (ADCP) transects collected over a 12-year period to remotely sense the characteristics of the near-surface scattering layer, which at 153.6 kHz is dominated by macrozooplankton. Although the primary use of the shipboard ADCP is to measure ocean currents, the measured acoustic backscatter has provided valuable insights into the depth distributions, vertical migration behaviors and even life cycles of dominant biological scatterers. Diel vertical migration and a well defined annual cycle are observed, consistent with krill behavior. Significant geographic variations are present on both seasonal and interannual time scales. Interannual variability is linked to two main climate modes, the El Niño-Southern Oscillation and the Southern Annular Mode, as well as to variations in seasonal sea ice extent. Limitations of the present study and proposed sampling to address them will also be discussed.

Presented by:

Dr. Teresa K. Chereskin
Scripps Institution of Oceanography at the University of California, San Diego

Teledyne Marine Offshore Energy Overview - TMTW17

Wed, 31 Jan 2018 09:49:36 GMT

Introduction to Teledyne Marine's Offshore Energy technology and capabilities, presented at TMTW17.

Teledyne Marine Defense & Security Overview - TMTW17

Wed, 31 Jan 2018 09:28:59 GMT

Introduction to Teledyne Marine's Defense and Security solutions and capabilities, presented at TMTW17.

Teledyne Marine Oceanographic Research Overview - TMTW17

Mon, 29 Jan 2018 09:51:56 GMT

Introduction to Teledyne Marine's Oceanographic Research technology and capabilities, presented at TMTW17.

2017 New Products / Technology from Teledyne Imaging and Instruments

Thu, 25 Jan 2018 09:42:40 GMT

Teledyne Marine Civil Engineering / River & Stream Monitoring Overview - TMTW17

Thu, 25 Jan 2018 09:34:00 GMT

Introduction to Teledyne Marine's Civil Engineering and River & Stream Monitoring technology and capabilities, presented at TMTW17.

2017 - New Products / Technology from Teledyne Interconnect

Wed, 24 Jan 2018 14:22:07 GMT

Why Would You Put a Multibeam Sonar on a Construction Barge?

Fri, 19 Jan 2018 15:45:56 GMT

Abstract:

How can I use GPS – I need results in the field. I can't use RTK GPS because it's not accurate enough. Multibeam SONAR systems will never be affordable to anyone but government agencies. Why would you put a GPS unit on a bulldozer? These are all comments and questions commonly heard by and asked of the author, over the course of his career, and in their initial years of introduction, for what have all become truly transformative technologies.

Fortunate in having been exposed to each of these technologies as they were outliers at the left-hand side of the Technology Adoption Curve (TAC), otherwise known as “Innovators", the author presents a broad overview of the development and user implementation timeline of GPS and SONAR technologies. As he fills the area under the TAC with anecdotal recollections of Early Adopter, Early and Late Majority and, let's not forget – the Laggards.

Interesting enough, the technologies as referenced herein, have collectively returned to the Innovator portion of the Technology Adoption Curve. The author now hears the question, “Why would you put a SONAR on a construction barge?" Reference cases of multibeam SONAR installations on construction barges are given showing that the Early Adopters have begun filling in their “area under the curve" and the days of the Early Majority users are soon to follow.

Presented by:

Lou Nash
Measutronics Corporation

Measurements for site description and response of farmed fish and equipment...

Sat, 06 Jan 2018 12:23:04 GMT

Abstract:
The salmon farming industry in the Faroe Islands is currently utilizing some of the most exposed sites for aquaculture in the world. Up to now, waveheights of >5m Hsig and tidal currents >1m/s have been measured at the sites.

To be able to provide good advice on farming in such extreme places, proper description of the physical environment is necessary and good knowledge about the capabilities of the farming equipment and the farmed fish in such an environment. For this work we are always on the lookout for the best equipment for the job. We have a number of workhorse sentinels that we use with good results, and have tested the SentinelV and the Citadel CTD as well through the academic product grant.

For site characterization we generally first describe the regional tidal currents using a boat mounted ADCP. From these results a layout of the aquaculture site is proposed and an bottom mounted ADCP is used for obtaining long term measurements of waves and vertical current profile for creating statistics on waves and currents.

Measurements at highly exposed sites have revealed features that might not be described by the standard measurements performed for new salmon farming sites, and work is initiated to define new protocols.

The response of equipment and behavior of the farmed fish is also unknown for highly exposed sites. Various measurement methods are employed together with ADCP's and CTD's to bring more information forward on these subjects.

Examples of results from such measurements will be presented.

Presented by:

Øystein Patursson
Fiskaaling

Teledyne Multibeam and Dredge Guidance Hardware and Software for Use in...

Sat, 06 Jan 2018 12:07:33 GMT

Abstract:

A $4 Billion project in Tarrytown, New York to replace and demolish the Tappan Zee Bridge is utilizing many aspects of the Teledyne Dredge Guidance portfolio. Five excavators outfitted with Teledyne dredging software (PDS) will be using hydraulic jack hammers to demolish underwater concrete bridge structures. The software allows them to visualize the location of their hammers relative to the structures as well as which portions have already been demolished. A clamshell wire crane outfitted with Teledyne PDS software as well as Teledyne Crane sensors will be used to clean out the debris once the excavators have broken the structures down. Finally, a small survey vessel outfitted with Teledyne PDS Multibeam software and a Teledyne BlueView SONAR provides real time “As-Building" information to the excavators and wire crane so that they have the most up to date information about the structures and debris. With the information from the SONAR, the machines can be sure that an area is fully demolished and removed before moving onto the next one. This will save time and the extra cost of having to go back to a location if something was missed.

Presented by:
Nathan Keys
Measutronics

Advanced Techniques for Rapidly Mapping 3D Spatial Velocities for Tidal...

Thu, 04 Jan 2018 09:29:12 GMT

Abstract:

Join us as we uncover the first approved permanent Tidal Test Facility in the United States.

RDI and WaterCube, LLC partnered up with the Marine Renewable Collaborative to participate in bringing together the latest technologies to rapidly produce 3D spatial views of velocity and bathymetry within the Cape Cod Canal to gain approval of the Bourne Tidal Test Facility. Utilizing the most advanced instrumentation by RDI, a remote-boat by Oceanscience for data collection and WaterCube's innovative new data processing engine, the Marine Renewable Collaborative were able to showcase not only the power potential of the area but also visualize and design the ideal turbine placement which will harness the most potential for turbine manufacturers for years to come. The Marine Renewable Collaborative just received approval from The Army Corp of Engineers to begin installation of the testing facility in November of 2017.

Come see how these powerful views opened the eyes of many to the potential within Cape Cod. REAL 3D NEVER LOOKED SO GOOD!

Presented by:

Jeff Den Herder - in collaboration with WaterCube, LLC
Teledyne RD Instruments

Teledyne Marine Imaging Sonars, Bathymetry Sonars and Sub bottom Profilers -...

Fri, 22 Dec 2017 12:18:27 GMT

Introduction to Teledyne Marine's Acoustic Imaging technology and capabilities including Imaging Sonars, Bathymetry Sonars and Sub Bottom Profilers, presented at TMTW17.

Royal Canadian Navy SeaBotix and BlueView Simulation Including Common...

Wed, 20 Dec 2017 10:05:18 GMT

Abstract:
GRi was contracted by the Royal Canadian Navy to provide a total of six Teledyne Seabotix simulators with BlueView multibeam sonar across three national locations. The work scope included simulation of dual vehicle missions and a range of training content for Navy ROV pilots, including:

• BlueView multibeam sonar.

• Surface splash zone dynamics.

• Reduced computing footprint requirements, allowing the simulator to run on a single laptop with the SeaBotix OCU hand controller and Seanet Pro Control Software.

• Realistic tether and manipulator dynamics.

The presentation will discuss Royal Canadian Navy's experience with the systems and subsequent advances in large-scale, multiple vehicle simulations made possible through advances in the GRi Physics Engine (GRiP).

The presentation will discuss team-training capabilities using Teledyne SeaBotix and BlueView simulation, with a focus on team-training capacity for multiple surface vessels, launch and recovery systems, and vehicle classes in a single scenario through Common Operating Picture simulation. The Common Operating Picture training mission features six controllable surface vessels with four subsea platforms vehicles (including Teledyne SeaBotix's vLBV950, vLBC, an AUV, and Workclass ROV) operating in a single coordinated graphical and dynamic setting in a mine-countermeasures and submarine rescue scenario.
Presenter:
Steve Dodd
GRI

Slocum Gliders in multidisciplinary studies on the Scotian Shelf and beyond

Wed, 20 Dec 2017 09:47:14 GMT

Abstract:

The Ocean Tracking Network and the Marine Environmental Observation, Prediction and Response (MEOPAR) Network Centre of Excellence have jointly funded the Coastal Environmental Observation Technology and Research (CEOTR) glider program since 2010. Our glider program supports a wide variety of research focused on understanding physical, chemical and biological oceanographic processes with collaborators across Canada and the USA. Researchers that bridge the gap between ocean physics and marine animal movement have utilized measurements of water masses and current estimates determined from Slocum gliders to help understand salmon migration. Measurements of oxygen concentration over multiple years have helped validate circulation models to estimate low-oxygen zones which could alter the habitat of sensitive marine animals such as the wolffish. Slocum gliders equipped with passive and active acoustic sensors have been used to provide multiyear monitoring of both whales and their prey in Atlantic Canada and in the Pacific Ocean off of Vancouver Island. In order to adapt to this broad scope of research, we have had to adapt our gliders to the specific needs of researchers and solve case-specific issues as they arise. Through training and collaborations, we support innovative research across disciplines by working with researchers, industry and government.

Presented by:

Adam Comeau
Dalhousie University

Using Teledyne PDS Software for Pile Driving Applications

Mon, 11 Dec 2017 12:58:54 GMT

Presenter:

Trevor Yocum
Measutronics

Abstract:

Teledyne PDS software can be used for a variety of marine applications, both in construction and hydrographic surveying. This presentation will focus on a relatively new feature for the Teledyne PDS software, pile driving. Whether it is standard vertical piles or complex battered piles, PDS easily manages the workflow. The operator is given all pertinent information to in real-time displays to speedily and accurately position the piles, such as an overhead bullseye view with vessel-referenced change required distances and a 3D view showing current and design pile locations. Included in the presentation will be an overview of the Teledyne PDS software for those unfamiliar with it, a short walkthrough of project creation and vessel setup, and a demonstration of real-time operation. This will be followed up with results from Teledyne PDS pile driving in the field.

Use of Acoustic Techniques for the Determination of Net Sediment Transport...

Tue, 05 Dec 2017 09:33:21 GMT

Presenter:

David Williams
Australian Institute of Marine Science

Abstract

The Marine Supply Base channel in Darwin Harbour, Northern Territory Australia provides access to berthing and loading at East Arm wharf for vessels that support the offshore energy industry.

Sedimentation in the channel due to complex currents in the area is reducing navigational efficiency and safety.

A combination of multi-beam echo sounder, utilising an Odom MB1 and Acoustic Doppler Current Profiler, using a network of TRDI Workshorse and Sentinel V, surveys were conducted over a 12 month period encompassing both dry and wet seasons. The MBES surveys mapped the extent of the MSB channel and the East Arm sandbar adjacent to the channel. Tidal current patterns determined from the ADCP surveys show that tidal currents in the area are highly variable and are stronger in the ebb tide direction except at the entrance to the navigation channel. Tidal current are more variable in the flood tide direction at all remaining sites along the channel. The strength and direction of the tidal currents indicate that sediment movement is along the channel toward the deeper seaward navigation channel.

Fine sediments have deposited in the MSB berthing area slightly reducing the volume of the berthing pocket and also depositing toward the end of the channel. An annual sediment deposition rate of 100 mm over the berth area was determined via observations and modelling.

Non-cohesive sand transport modelling, configured using data from the MBES and ADCP surveys, has indicated slow movement of the sandbar in a dominantly south west direction at between 100 – 200 mm per month. Fine sediment modelling indicates deposition in the MSB berth area of 20 – 50 mm/year under average conditions.

Modelling indicates that if the MSB channel was realigned to be straighter the current directions would be more regular assisting navigation. Sediment accumulation would not present a major issue if the majority of the East Arm sandbar was dredged.

Introduction to SmartFlight 2:0 - Automated Navigation for Teledyne SeaBotix...

Wed, 29 Nov 2017 14:52:55 GMT

Introduction to SmartFlight 2:0 - Automated Navigation for SeaBotix ROVs

Visit the Smartflight 2:0 product page >

Multi-Modal Autonomous Exploration of Ice-Ocean Interactions at an...

Wed, 29 Nov 2017 09:58:32 GMT

Presenter:
Alexander Forrest
University of California - Davis

Abstract:

Predicting the response of the ice-ocean system is becoming increasingly critical in an era where climate change is leading to ever more common mass wasting events of ice shelves in Arctic and Antarctic regions. In order to understand why these ice shelves are collapsing at an unprecedented rate and how they will continue to evolve in the future with changing climate, it is critical to make in situ observations of the physical processes driving these large mass wasting events. In these extreme environments, such measurements are only possible through autonomous robotic platforms.

On April 7, 2016, two large (~10km long by 5 km wide) fragments broke off the Nansen Ice Shelf in the Ross Sea in a single mass-wasting event in close proximity to a suspected subglacial channel. In 2017, UBC-Gavia, an autonomous underwater vehicle (AUV), and Storm Petrel, a buoyancy driven autonomous underwater vehicle (these are often referred to as gliders), were deployed from the R/V Araon as part of the Land-Ice/Ocean Network Exploration with Semiautonomous Systems (LIONESS) collaborative framework led by the Korean Polar Research Institute. Using a coordinated robotics approach, observations were made of: 1) under-ice topography and basal roughness; 2) the boundary layer dynamics at the ice-water interface; and, 3) the mid-water column behavior, in both the near and far field, of outflowing supercooled water coming from beneath the ice shelf. While not without challenge, such an approach is one of the few ways to get a synoptic views of these dynamic and evolving systems.

Perspectives on the State of Ocean Science

Tue, 14 Nov 2017 09:51:10 GMT

Keynote presentation by Margaret Leinen

The value and role of ocean science and innovation increasingly has been the focus of both international and domestic forums on climate science, sustainability, and defense. Now in its second century of exploration and research, UC San Diego's Scripps Institution of Oceanography is rising to meet new challenges to understand and protect the planet, through interdisciplinary and cross-sector collaborations and a continued focus on developing innovative technology to observe the planet.

Scripps shares its science at international forums such as the United Nations ocean and climate conferences to advise, contextualize and strengthen the efforts of nations, NGO's and policymakers that set and meet standards for sustainable use of the oceans. The United States Navy is also in the midst of assessing the global state of ocean science and technology via Task Force Ocean, and has engaged US academic institutions including Scripps to ensure cutting-edge ocean science is applied to its oceanographic infrastructure, technologies, and technical workforce so that the Navy maintains its global competitive advantage.

In her keynote, Dr. Margaret Leinen will describe these international forums, Scripps role, how Scripps scientists are innovating to meet these global demands in ocean science and technology, and the state-of-the-art research facilities, centers, and education that will shape the future of ocean and climate science.

The Next Great Odyssey of Human Endeavour Exploring the Deep Ocean

Thu, 09 Nov 2017 14:55:25 GMT

Keynote presentation by Oliver Steeds

Humankind is poised to make the next giant leap – into the deep ocean. We now have the technology available to us to discover more of our planet in the next 10 years than we have in the last 100,000.
Throughout human history, exploration has always driven our progress. Lief Ericson's journey to North America (1001 AD), the discovery of the New World (1490s), Magellan's first circumnavigation (1519) and space exploration (1957-) have all pushed back the frontiers of our knowledge, unlocking immense opportunity and changing our relationship to our planet and ourselves.
But since 1969, we've been looking up when we should have been looking down. The most important part of our planet, the deep ocean, remains the least known part of our planet.
The ocean is the heart of our planet. It's 99% of the planet's biosphere[1], regulates our atmosphere and climate and produces 50% of the oxygen we breath[2]. It captures heat and carbon dioxide which dramatically reduces global warming and provides a primary source of protein for 3 billion people[3]. The ocean is everybody's business. How it changes affects us all. The problem is that we don't know how the deep ocean functions, how healthy it is, how resilient it is and how the development of a sustainable blue economy can drive our growth.
The ocean remains the last great unknown frontier on our planet. We've only biologically sampled 0.0001%[4] and mapped an area equivalent the size of Tasmania to the same kind of detail that we have mapped the entire orbs of the Moon and Mars[5].
From Autonomous Underwater Vehicles (AUVs) to Remotely Operated Vehicles (ROVs), from seabed mapping systems and chemical sensors to the initial library of DNA sequences of marine animals, technological developments now unlock extraordinary new research capabilities. We now have the ability to discover more of our planet in the next 10 years than the last 100,000 of human history.
New areas of economic activity such as renewable energy and marine mining are on the horizon. Millions of new species are to be discovered that can propel human medicine. Resources to be unearthed that will drive our sustainable economic development. Even the origins of life on Planet Earth are to be found.
To engage the world in our all of our work, we should be looking to the space community to learn how to improve our story-telling – engaging our audiences with stories that are positive, forward looking and about a brighter future; that are Mission based and trigger the imagination, communicating danger and building on narratives of exceptionalism, patriotism, exploration and the collective human achievement.
Together, as an industry, we are already leading the exploration of the deep ocean, the last, great unknown frontier on Planet Earth.
The Apollo Missions, polar exploration, Jacques Cousteau's adventures, even Felix Baumgartner's space jump captivated the world with their human drama, battles against adversity, and above all, the unknown. We need the unknown. It is the sense of mystery that gives us imagination and makes us human. Our work is the next positive epic story of human endeavor that can inspire humanity.

SOURCES:
[1] http://www.un.org/sustainabledevelopment/oceans/
[2] http://earthsky.org/earth/how-much-do-oceans-add-to-worlds-oxygen
[3] http://www.worldwildlife.org/industries/sustainable-seafood
[4] www.marineboard.eu/file/265/download?token=J5hokhHB
[5] http://www.motherearthnews.com/nature-and-environment/nature/fun-surprising-facts-about-the-oceans.a...
[6] http://www.earthsurfaceprocesses.com/3c-E-MassExtn.html

Applications of Sonar Software Tools for Security and Defense

Thu, 31 Aug 2017 14:48:37 GMT

Applications of Sonar Software Tools for Security and Defense: Mosaicking for Hull Inspection, Non‐GPS Navigation, and a Low‐Cost Bathymetry Tool.

By: Arjuna Balasuriya, Charles River Analytics

Teledyne marine sensors provide data that is valuable for many defense and security missions, from navigation to mine countermeasures to maintenance. In this talk, we will highlight work that uses a variety of Teledyne sensors, including multibeam imaging sonars, multibeam profilers, and Doppler velocity logs. We have created software tools to leverage these sensors for a variety of tasks. Our sonar mosaicking tool combines imaging sonar data over time to build rich, detailed, and complete 3D pictures of the undersea environment. These mosaics have been used for hull inspection and ship wreck mapping. Our sonar multiview tool provides multiple means of viewing and interacting with georeferenced bathymetry data collected from a multibeam profiler, including a waterfall view, point cloud view, and map overlay. This tool allows detailed inspection of the seafloor for mission planning and site inspection. Our GPS-free navigation solution provides high-accuracy underwater navigation when coupled with the Teledyne RDI Workhorse Navigator DVL. Our patent pending process fuses multiple aiding sensors with velocity measurements to create a position estimate that is accurate to within .1% of distance traveled, enabling precise navigation even over mission-relevant distances of underwater traversal. We will discuss these tools and demonstrate their functionality and interfaces, to give a sample of some of the defense and security tasks enabled by Teledyne's sensors and Charles River Analytics' advanced software.

Vehicle-Borne Sonar for Unmanned Harbor Security

Mon, 03 Jul 2017 10:59:11 GMT

Presenter: Thomas Pastore, SPAWAR

SSC Pacific has led the development of a two-vehicle unmanned system for the purpose of inspection and identification of underwater threats in ports and harbors. The system consists of a 4-meter catamaran surface platform and a tethered submersible ROV. Thus, the combined system has the advantages of both platforms. The surface vehicle provides high speed and substantial standoff from the operator, while the ROV maintains a high-bandwidth tethered connection to surface, ability to move close to and optimize aspect to underwater threats. A joint navigation and control system accomplishes tether management and georeferencing and enables optimal positioning of the system's sensors in the water column. The subsurface platform carries a custom dual-frequency BlueView sonar, which uses a 450-kHz horizontal array and a 900-kHz vertical aperture to enable simultaneous viewing of a threat in two planes. The command and control system includes an automatic target recognition (ATR) capability. The system was initially designed to identify swimmer threats, and it has since been adapted to perform mine countermeasure) missions. This unique system can be used for many other inspection and intervention applications.

TMTW 2015: NOAA’s Recent Field Testing of the Teledyne RDI Sentinel V ADCP

Wed, 03 May 2017 14:19:39 GMT

NOAA’s Recent Field Testing of the Teledyne RDI Sentinel V ADCP
Presenter: Nathan Holcomb NOAA

The National Oceanic and Atmospheric Administration’s (NOAA) Center for Operational Oceanographic Products and Services (CO-OPS) currently maintains 24 Physical Oceanographic Real-Time System (PORTS®) observatories throughout the United States coastal regions. These systems provide real-time oceanographic and meteorological information to support safe and efficient navigation. One important observation included in the suite of PORTS data products is ocean currents. CO-OPS also measures currents during non-real-time surveys under the Nation Current Observation Program (NCOP); these data are used to generate tidal current predictions. To ensure that its networks operate in the most efficient and accurate way possible, CO-OPS invests in testing of latest commercially available oceanographic instrumentation. CO-OPS uses a variety of TRDI Workhorse ADCPs throughout PORTS and NCOP systems. Motivated by new developments and products offered by TRDI, CO-OPS procured a 500 kHz Sentinel V for initial testing. To date, a series of controlled boat tow tests have been completed along with a short field test in the South Chesapeake Bay (October’14). The primary objective is to test current measurement performance for CO-OPS’ applications; a secondary objective is to evaluate wave measurement capability. During the Chesapeake Bay test the Sentitnel V was deployed in a bottom mount nearby a TRDI WorkHorse, Nortek AWAC, and TriAXYS wave buoy. Water depth at the site is approximately 15 m and currents are predominately tidal, ranging approximately 0-2.5 knots on a daily basis. A summary of the results from both the boat tow and a Chesapeake Bay tests will be presented.

TMTW 2015: Three Month Continuous Measurement of Waves off the West Coast of...

Wed, 03 May 2017 14:18:31 GMT

Three Month Continuous Measurement of Waves off the West Coast of Ireland During the Winter of 2015 University College Dublin
Presenter: Frederic Dias University College Dublin

The WAVEMEASUREMENT project is linked to the ERC Advanced Grant MULTIWAVE (www.ercmultiwave.eu). MULTIWAVE is an interdisciplinary project focusing on uncovering the fundamental mechanisms underlying the physics of rogue waves. The potential to improve the understanding of ocean rogue waves is hindered by the lack of reliability of measurements of extreme ocean waves. More specifically, the quality of the data and the sophistication of data analysis of existing measurements from conventional buoy sensors are still unsatisfactory for the detailed study of rogue waves. The key idea of WAVEMEASUREMENT is to implement rigorous calibration tests of wave measurement in an extreme environment.

As a test site, the Killard Point area (west coast of Ireland) has been chosen. The overall area is characterised by a mean tide of about 5m which can reach maxima of about 5.7m.

Because the experiment was aimed at defining the quality of the currently available wave measurements under extreme conditions, a Sentinel V ADCP and a Waverider buoy were considered for comparison. The ADCP was deployed on 9 February 2015 in the Killard Point area at 39m depth, at exact location 52° 47.696’N, 009° 34.149’W and recovered on 11 June 2015. The deployment and recovery were carried out by TechWorks Marine. Data processing has started and there are 80 days of continuous data. Unfortunately the Waverider broke and was not replaced.

CARIS Onboard - near real time hydrographic data processing

Mon, 23 May 2016 14:58:12 GMT

Near real time hydrographic data processing using CARIS Onboard with Teledyne Marine multibeam echo sounders.

Scope

CARIS company background
The Challenge of Current Data Handling
Introduction to the CARIS Onboard software package
How CARIS Onboard works
Applications with Teledyne Marine hardware

Combined Laser/Multibeam Sonar Survey of Sydney Harbor

Fri, 06 May 2016 10:34:02 GMT

By Dario Conforti - Teledyne Optech

Combined Laser/Multibeam Sonar Survey of Sydney Harbor

Teledyne Optech has been a world leader in the design, development and manufacture of advanced lidar instruments for 40 years. In the last few years Teledyne Optech and its sister company Teledyne RESON developed a full and seamless integration between their sensors, the motion-compensated ILRIS-3D laser scanner and the SeaBat 7125 Sonar System, through the PDS 2000 software. The ILRIS Motion Compensation (MC) option was developed to let surveyors use the normally static ILRIS dynamically by combining it with a Position and Orientation System (POS) and Global Positioning System (GPS) receivers. The resulting system is integrated into a mobile mapping system and enables much more effective mapping in wide and complex terrain. This type of mobile laser scanning is now at the cutting edge of coastal survey technology because it allows surveyors to easily survey coastlines directly from a boat and is particularly useful for mapping long or inaccessible coastal areas. This presentation will explain the integration of the ILRIS and SeaBat sensors and showcase several applications in the last few years from Europe to North America to Australia. The survey in Sydney, Australia is the most recent survey made and shows the perfect match between the underwater data from the sonar and the shore data collected from the lidar scanner.

So You Want to Save Energy:

Thu, 31 Mar 2016 11:44:13 GMT

A Unique Application of BlueView 3-D Multibeam Sonar Technology and Best Practices to Optimize Sediment Removal Operations at Port Facilities.

Presenter: Tony Simon
Washington State University Energy Program

Mapping and measuring eelgrass beds with an MB1 sonar

Fri, 29 Jan 2016 09:24:08 GMT

This presentation was given at the Teledyne Marine Technology Workshop in San Diego 2015 by Ashley Norton from Center for Coastal and Ocean Mapping

Eelgrass plays many important roles in temperate coastal ecosystems, including as habitat for many species, and as a bio-indicator for water quality in many areas.

The deepest edges of eelgrass beds are considered more vulnerable to water quality issues because of the pre-existing light limitation with increasing depth due to natural light attenuation. However, the deep edges of beds are also often the most difficult to delineate with satellite and aerial imagery often used for large-scale seagrass mapping programs. We are developing a methodology to characterize the depth limit (‘deep edge’), percent cover and canopy height of eelgrass beds at high resolution (~1 m) using water column acoustic backscatter data from an MB1 multi-beam echo-sounder.

An automated data processing workflow is being developed that will use a combination of digital signal and image-processing techniques, including techniques originally developed for medical ultrasound imagery. These data can provide georeferenced acoustic imagery and depth information needed to document the location, structure, and spatial heterogeneity of eelgrass beds, with more spatial coverage than existing acoustic tools that mostly utilize single-beam echosounders.

Water column data were collected over beds at 3 locations in the estuary in the summer of 2014, and preliminary data analysis shows that eelgrass patches as small as 1m2 and as short as 20 cm are detectable. Data was also collected concurrently in the summer of 2015, and they include1) ground-truth data from drop camera imagery and field surveys; 2) aerial surveys; and 3) acoustic backscatter data. The ability to process multi-beam water column data for eelgrass characterization may provide a new data source and tool for ecologists and managers interested in eelgrass distribution and characterization, as well as bathymetric information used for charting depths.

Combined Bathymetry & Laser Surveys [Developing a Robust Workflow]

Tue, 12 Jan 2016 16:48:06 GMT

Duncan Mallace from MMT presents some of the newest workflows that can be applied when doing combined Multibeam Echosounder and Laser surveys.

The history of the SeaBat Sonar

Wed, 02 Dec 2015 09:47:04 GMT

Uni Bull, Senior Product Manager at Teledyne RESON, guides you through the evolution of the SeaBat sonars, starting with the first commercial forward looking sonars from the early 90′s to the newly released SeaBat T-series multibeam echosounders.

Uni Bull describes the sonar evolution like this:
“The early sonars were good then, a bit like the commodore 64 computers, but compared to the technology of today, they have a hard time.”

Integration of Multiple Reson and BlueView Sonar

Fri, 13 Nov 2015 12:55:46 GMT

The La Higuera project is co-owned by Pacific Hydro and SN Power and located approximately 150 km south of Santiago, Chile. The headrace tunnel known as the Tinguiririca Tunnel is 18 km in length and was constructed using drill and blast techniques.

In August of 2010, a 20-metre section of the 18 km long tunnel collapsed, forcing a 20-month long closure of the tunnel and power station while repairs were undertaken. The collapsed area was sealed off and a 260 metre bypass was constructed to reinstate water flow. During the repair of the main collapse, other sections of the tunnel were reinforced and instrumented so that real-time monitoring could be done under operating conditions. To supplement the on-line sensors, the owners required regular inspections of the tunnel to check for small rock falls, swelling of the rock mass and condition of the rock traps, preferring to do this without de-watering the tunnel. ASI Group of St. Catharines, ON, Canada, was awarded the contract to inspect the tunnel, using a remotely operated vehicle, or ROV, equipped with a unique array of Reson and BlueView sonar systems and a 10km tether to traverse the entire length of the tunnel. The data that the system needed to acquire had to match as close as possible, the level of data that the owner collected with a lidar survey of the tunnel just after the repairs were finished.

This presentation discusses the performance criteria specified by the owner and how these were met through the integration of multiple sonar systems, six of which are provided from the Teledyne group of companies, and a high-level inertial navigation system onto a modified ROV that operates with a 10 km long tether. Representative samples of collected data are also provided from recent inspections.

Dual Head Multibeam bathymetry mapping riverbed structures and morphologies...

Fri, 13 Nov 2015 12:55:08 GMT

Along the years, Rural Tech Company has realized a series of surveys of all kind in the Amazon region, especially in Tapajós River. One of the areas that has been studied since 2006 is São Luís do Tapajós in Pará state, near Itaituba city. There, is going to be built one of the five biggest Brazilian hydropowers on terms of energy generation. Current studies, already at an advanced level, include a multibeam survey of about 30 square quilometers. Mapping with a Teledyne Odom MB1 Dual Head (phase and amplitude bottom detection bathymetry), all the riverbed structures and morphologies were well defined, allowing, this way, a great amount of information to be extracted, extremely important for that involved on the hydropower construction study. On the other hand, the contractors could plan their projects with the best benefit-cost ratio, taking advantage of the natural features mapped with the bathymetry.

Autonomous on-board data collection and processing using the Teledyne Odom...

Thu, 24 Sep 2015 14:54:28 GMT

Michael Redmayne from Caris gives his view on the usage of Autonomous Surface Vessels from the Underwater Technology Conference held in Boston, September 2014.

How are the dynamics of survey platforms changing? Are we seeing a shift into using AUVs for surveying and what are the operational requirements for this kind of survey?

Surveying, Dredging and Monitoring Fluid Mud in a Commercial Port

Tue, 07 Apr 2015 12:47:10 GMT

At our Underwanter Technology Seminar (UTS) in Hamburg, September 2014, Deputy Haven Master (Conservancy) Port of Bristol, Mark Burrows presented how the Port of Bristol deals with large amount of fluid mud in the port area with the following headlines: Survey Capabilities, Dredging Operations and Monitoring Fluid Mud.

Sea and Airborne Laboratory for Canada’s North Hydrographic Surveying

Tue, 27 Jan 2015 07:55:43 GMT

At UTS14 in Boston Mathieu Rondeau from CIDCO and Olivier Ayotte from Geosphair Aviation made a presentation on how to survey the most northern parts of Canada using a plane with an onboard Multibeam Sonar.

UTS14 Quiandao Lake, Yang Ming

Mon, 12 Jan 2015 09:43:49 GMT

UTS14 Quiandao Lake, Gao Hongqui

Mon, 12 Jan 2015 09:41:13 GMT

UTS14 Quiandao Lake, professor Ding Jisheng

Mon, 01 Dec 2014 13:34:45 GMT

High-quality surveys of man-made structures as an aid to improved decision...

Mon, 24 Nov 2014 13:15:55 GMT

By Stuart Leather, Business Development Director, ADUS, DeepOcean

Offshore wind parks: Solutions during wind park’s life-span

Mon, 27 Oct 2014 14:49:18 GMT

Presentation given by Nico van Woerkom, Commercial Director, Teledyne-RESON BV at the Underwater Technology Seminar 2014 in Hamburg.

Learn more about Teledyne Marine dredge and construction solutions>

Placing caissons the most accurate way using a range of sensors

Mon, 27 Oct 2014 14:13:11 GMT

A case study from Venice, by Nico van Woerkom, Commercial Director,

Teledyne RESON BV presented at The Underwater Technology Seminar in Hamburg 2014.

Learn more about Teledyne Marine dredge and construction solutions>

New Techniques for Bridge and Structure Inspection

Mon, 29 Sep 2014 11:27:45 GMT

“Combining Scanning Sonar, Laser Scanning and Mobile Mapping to Provide New Techniques for Bridge and Structure Inspection.”

By Tom Card, LandScope Engineering Ltd

Summary of paper:
With regards to bridges and other underwater structures, owners, operators and the civils industry are continually challenged to understand the structure and condition of assets below the water line. New techniques in 3D sonar are now enabling high resolution, high accuracy point clouds to be collected underwater. This presentation will discuss the challenges faced in designing data collection programmes, understand the value of combining such with traditional laser scan (LiDAR) point clouds and appreciate the advantages of this rich resource over more traditional underwater inspection techniques.

The benefits of online analysis of sound speed profiles during data acquisition

Mon, 06 Jan 2014 15:35:04 GMT

By Hydrographic surveyor - Morten Sølvsteen, Danish Geodata Agency

Presentation outline

The two major uses of the ”skeleton”

1) Line planning
Line planning for more efficient surveys.

2) On-line analysis of sound speed profiles during data acquisition
A method for analyzing overlapping areas in multibeam echosounder surveys is introduced. The method requires that the velocity of sound at the transducer is monitored during the survey.

The method applies the principle of least squares to determine the vertical offset and the bias of the swaths caused by insufficient knowledge of the velocity of sound in the water column below the transducer.

This presentation was given at the Teledyne RESON Underwater Technology Seminar in Copenhagen 2013.

Video paper: Pipeline surveying from a surface vessel in the Caspian sea

Mon, 25 Nov 2013 12:49:39 GMT

Surface Vessel Based Multibeam Pipeline Inspection

In a special collaboration between BP, Fugro Caspian and Teledyne RESON an unconventional approach was used to survey pipelines in the Caspian Sea. A vessel was outfitted with two pole mounts each equipped with a SeaBat 7125 SV2 using FP3. Teledyne PDS software was used to automatically detect and track the pipes in real time. A total of 710 km pipe was surveyed in just seven days. This presentation outlines the advanced technologies that were involved to collect such high resolution pipeline data.

Surveying in the most remote place in the world, Antarctica

Fri, 01 Nov 2013 14:41:45 GMT

Navigation data is poorly available in Antarctica. If navigational data is available it often dates back to the early 1900s with many lead line surveys. An initiative was undertaken by Stephen Wilkins of Xplore Expeditions to collect bathymetry with a multibeam SeaBat 7125-SV2 survey system making use of the sailing vessel Xplore. Together with Yoann Boulaire from SHOM, France and Fernando Landeta, hydrographic technician from Skyring Marine Chile, an IHO qualified survey was performed in Antarctica on an expedition sailing yacht.

See a presentation of the project recorded in September at the Teledyne RESON Underwater Technology Seminar in Copenhagen.

Hydrographic Case studies from The Port of London, part 2 - Getting it together

Mon, 18 Mar 2013 17:03:08 GMT

Getting it together - Hydrographic Case studies from The Port of London - part 2

Watch part 1

Presented by John Dillon-Leetch, Deputy Port Hydrographer, Port of London Authority at the RESON User Conference in Istanbul 2012.

Read about the 2013 seminar

This presentation includes the following subjects

Overview of PLA & Hydrographic Service

RESON SeaBat Systems- The story so far

Marine structure Inspections Surveys using Combined Systems – results and Challenges

2013 TEST projects and Results

Free viewer Demons

Hydrographic Case studies from The Port of London, part 1 - Getting it together

Mon, 18 Mar 2013 17:00:22 GMT

Getting it together - Hydrographic Case studies from The Port of London - part 1

Watch part 2

Presented by John Dillon-Leetch, Deputy Port Hydrographer, Port of London Authority at the RESON User Conference in Istanbul 2012.

This presentation includes the following subjects

Overview of PLA & Hydrographic Service

RESON SeaBat Systems- The story so far

Marine structure Inspections Surveys using Combined Systems – results and Challenges

2013 TEST projects and Results

Free viewer Demons

From wrecks to icebergs

Tue, 22 Jan 2013 16:13:06 GMT

Duncan Mallace, Managing Director of NetSurvey Limited, UK speaks at the RESON European User Conference 2012 in Istanbul.
The presentation covers the following topics:

• Introduction to MMT
• Operation Gooseberry – surveying the D-Day Harbours
• Scapa Flow – A history or wreck surveying with multibeam
• Operation Iceberg – How to survey an Iceberg

3D Visualization of Gulf of Mexico Seafloor Features

Tue, 04 Dec 2012 13:23:42 GMT

3D Visualization of Gulf of Mexico Seafloor Features and Submerged Platforms with High-Resolution Multibeam Sonar

By Eric M. Fischer, Geophysicist, Marine Surveys, LLC at the 2012 US RESON User conference.

Get more information about the RESON User Conferences around the world here

Abstract:

In 2011 Marine Surveys of Lafayette, Louisiana, conducted a series of marine geophysical surveys in the Central Gulf of Mexico. A vessel mounted high frequency multibeam echo sounder (MBES) in conjunction with a high accuracy precision positioning and inertial navigation system was used to evaluate and present the 3-Dimensional position, orientation and attitude of downed structures. A 500 kHz side scan sonar was also run at the individual sites in order to provide a traditional mapping presentation to be used as a reference and comparison to the MBES data.

The results of this survey demonstrate the value of MBES data for the purpose of mapping underwater structures and seafloor features. The water depths encountered during this series of surveys ranged up to 225ft. This water depth range allowed the survey team to perform all of the surveys at 400 kHz.

Multibeam project planning considerations by Juan Gardner, Fugro

Fri, 30 Nov 2012 21:52:40 GMT

Juan Gardner of Fugro Pelagos, Inc. discusses Multibeam project planning considerations at the 2012 US RESON User conference.

Comparison of Wreck Surveying Techniques

Thu, 12 Apr 2012 16:14:23 GMT

Presentation from RESON User Conference by David Parker, UKHO

"Comparison of Wreck Surveying Techniques"

Maximising the benefits of multibeam backscatter data

Sat, 07 Apr 2012 17:35:20 GMT

Presentation from RESON OI'12 User Conference by Dr. Craig Brown McGregor GeoScience Ltd.

"Maximising the benefits of multibeam backscatter data"

Monitoring and measuring dynamic processes with multibeam sonar.

Mon, 02 Apr 2012 13:45:50 GMT

Presentation from RESON OI'12 User Conference by Prof. Dan Parsons, Uni of Hull:

Monitoring and measuring dynamic processes with multibeam sonar.

Collect Once Use multiple times - The Versatile 7125

Mon, 02 Apr 2012 13:39:05 GMT

Presentation from RESON OI'12 User Conference by Duncan Mallace, NetSurvey

Collect Once Use multiple times - The Versatile 7125