Case stories and gallery Archives - Teledyne Reson Case stories and gallery Archives - Teledyne Reson

Case stories and gallery

Cost Effective Pipeline Surveys – using FlexMode and Teledyne PDS


Cost effective offshore surveys are instrumental to the success of a project more than ever and drive choice of survey equipment and software. This also requires a tight integration of survey sensors with software to maximize ship time while producing detailed deliverables. In this case study we highlight such a successful pair involving FlexMode and Teledyne PDS software which enabled Fugro Caspian to collect high resolution pipeline data in a fast and efficient fashion. (more…)

Surveying Wrecks around Estonia

wreck case

As a part of ensuring safe navigation, the Estonian Maritime Administration identifies potential dangerous wrecks in Estonian waters. ​​

Why are they surveying these old wrecks?​

The mission of the Estonian Maritime Administration is to ensure safe navigation in Estonian waters. It is extremely important to identify all possible navigational hazards, including wrecks. Some of these wrecks, especially those lost during WWII pose a potential environmental threat because of their cargo and fuel. High resolution Multibeam sonar systems help find and identify such wrecks. Below are some great examples of wrecks surveyed using a Teledyne RESON SeaBat 7125. (more…)

Data images from the Multibeam Survey of the HMS Hampshire wreck site


Earlier this year Teledyne RESON was invited by Seatronics to assist with the mapping of HMS Hampshire.

Near real time hydrographic data processing


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

Ultra-high Resolution MB Echosounder and Laser Scan Survey in Elbe, Germany.


In October 2015, Hamburg Port Authority (HPA) surveyed an old quay wall at Veddelhoeft, Northern Elbe, above and below of the water line in order to investigate the stability of the structure. (more…)

Video paper: Combined Laser/Multibeam Sonar Survey of Sydney Harbor


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.

Mini video documentary – Creating a custom deep tow vehicle


Teledyne Benthos and Teledyne RESON have been developing a new deep tow vehicle for Odyssey Marine Exploration. The vehicle is among other sensors equipped with SeaBat 7125 Multibeam Sonars and will be used to find shipwrecks on the seabed in very deep waters. The Vehicle is about four meters long and is to be towed with a up to 10 kilometer long cable from a surface vessel.

Two ParaSound P70 Sub-Bottom Profilers ordered by Chinese research institutes

Guangzhou Marine Geological Survey (GMGS) and Qingdao Institute of Marine Geology (QIMG) have awarded Teledyne RESON contracts to supply a full ocean depth sub-bottom profiler system for their new build survey vessels. (more…)

Bathymetry & Laser Surveys – Developing a Robust Workflow


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

Video Paper: The history of the SeaBat Sonar


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.

First SeaBat 7130 demonstrations


We conducted the first demonstrations of the SeaBat 7130 together with Teledyne PDS at the Teledyne Marine Technology Workshop in San Dieo, October 4-7. The SeaBat 7130 is our most advanced sonar providing long range 3D forward looking bathymetry at 200kHz, and high resolution 2D imagery at 635kHz.

Video paper: SeaBat sonars for High-resolution Tunnel Surveys


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.

Video – Exploring the deepest ocean Part III


Deep Tow Project Part III – Installation at Odyssey Marine Exploration

Teledyne Benthos and Teledyne RESON are developing a new deep tow vehicle for Odyssey Marine Exploration. The vehicle is equipped with a SeaBat 7125 Multibeam Sonar and will be used to find shipwrecks on the seabed in very deep waters. The Vehicle will be about four meters long and are to be towed with a 10 kilometer cable form a surface vessel.

We have followed the development process and in this third part Ernie Tapanes – Senior Project Manager from Odyssey Marine Exploration gives a brief on Installation at Odyssey Marine Exploration. (more…)

Video: The world’s first portable SeaBat 7150

Traditionally, SeaBat deepwater sonars have been known for being quite difficult to move around, but that is about to change as Teledyne RESON has built a portable SeaBat 7150. The entire system is built into a container making it the world’s first portable SeaBat deepwater sonar system. This particular system was developed to plan routes for underwater cables and pipelines.


Seabed reinforcement of the Little Belt Railway Bridge in Denmark


Peter Madsen Rederi (PM), a Danish company established in 1954, has since 1989 specialized in hydrographical surveying. PM has throughout the years established a great network and knowledge in this area enabling the company to select and manage the right solution for almost any survey operation. PM has also developed their own training program for their hydrographic surveyors and engineers to ensure optimal results and continues to improve and gather new knowledge and techniques. The company is mainly operating in Northern Europe.

Video: Surveying and Dredging Fluid Mud in a Commercial Port


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.

Route Steering feature saved substantial time during pipeline survey


Route Steering feature saved substantial time during pipeline monitoring survey in the Caspian Sea

In a special collaboration between BP, Fugro Caspian and Teledyne RESON, an unconventional approach was used to survey pipelines in the Caspian Sea, which has been carried out every year since 2012. The vessel was equipped with 2 pole-mounted SeaBat 7125 SV2 multibeam echosounders using Feature Pack 4 (with Flex Mode, X-Range and Full Rate Dual Head). A total of 710 km of pipe were surveyed in just seven days.

This article describes how the new Route Steering feature in PDS2000 was used to yield substantial time savings during the survey.


Video: A combined laser and bathymetric survey, Sydney 2014


Teledyne RESON and Teledyne Optech have recently conducted a series of tests for the Port Authority of New South Wales, combining laser and bathymetric survey into a “seamless surface” experience.


Video presentation: Multibeam Sonar installed on a plane


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 by installing a Multibeam Echosounder system on an aeroplane.

Video paper – High-quality surveys of man-made structures by Adus


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


Video paper: New techniques for bridge and structure inspection


At the Underwater Technology Seminar in Hamburg 2014 Tom Card from LandScope Engineering Ltd made a presentation called:

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

Video – Exploring the deepest ocean Part II


Deep Tow Project Part II – Assembling & Testing at Teledyne Benthos

Teledyne Benthos and Teledyne RESON are developing a new deep tow vehicle for Odyssey Marine Exploration. The vehicle is equipped with a SeaBat 7125 Multibeam Dual Head Sonar and will be used to find shipwrecks on the seabed in very deep waters. The Vehicle will be about four meters long and are to be towed with a 10 kilometer cable form a surface vessel.

We have followed the development process and in this Second part, Joe Sparks and Dan Shropshire from Teledyne BENTHOS give a brief on assembling and testing. (more…)

Video – Exploring the deepest ocean Part I


Deep Tow Project Part I – Getting started

Teledyne Benthos and Teledyne RESON are developing a new deep tow vehicle for Odyssey Marine Exploration. The vehicle is equipped with a SeaBat 7125 Multibeam Sonar and will be used to find shipwrecks on the seabed in very deep waters. The Vehicle will be about four meters long and are to be towed with a 10 kilometer cable form a surface vessel.

We have followed the development process and in this first part Paul Jubinski from Teledyne RESON Engineering Services gives an introduction to the project. (more…)

Sydney Harbour surveyed with SeaBat 7125-SV2 Dual Head


SPORTS cars, 100-year-old shipwrecks and mysterious 45m-deep holes are just some of the secrets hidden deep beneath Sydney Harbour.

The team responsible for keeping the Harbour’s busy shipping lanes and berths clear of obstacles have now revealed some of the spectacular 3D images of the Harbour floor and its surprising contents.

Four hydrographic surveyors at Sydney Ports keep an ever-vigilant eye on the bottom of the Harbour to make sure possible dangers in the depths do not disrupt water traffic on Port Jackson.

Technology is paying off – Dredging in Abu Dhabi


By Samer Amin

NMDC has embarked on implementing latest technologies to its core business; Dredging and Marine Construction.

During the last couple of decades, all new built heavy duty cutter suction dredgers are equipped with state of the art Dredge Automation system, AC drives, high efficiency pumps, etc… which allowed having vessels with optimum performance and full control capabilities.

The grain LNG Terminal surveyed


In 2010, the PLA were commissioned by the National Grid to survey the riverbed surrounding Jettiew 8 & 10 at the Grain LNG Terminal.

The data was collected by the combined vessel-mounted laser & SeaBat 7125 Multibeam sonar arrays.


Ultra-High resolution pipeline inspection


The article is originally featured in Fugro Group Magazine Cross Sections.

In the Azerbaijan sector of the Caspian Sea sixty per cent of BP’s 1,232 kilometres of offshore pipeline assets lie in water depths between 12 and 25 metres.

In these waters, particularly in shallow parts, poor water clarity makes General Visual Inspection (GVI) of pipelines via ROV problematic. Delays due to poor visibility on the continental shelf of the Absheron Peninsula are compounded by restricted vessel availability, leading to increased costs.Working with BP, Fugro has developed, designed and deployed an acoustic method of pipeline inspection (PINS) that dramatically reduces the time taken to carry out pipeline
inspection and produces improved information and novel deliverables to assist pipeline engineers in pipeline integrity assurance.


SeaBat T20-P operation experiences from Krasnoyarsk in Siberia

T20-P case head

By Denis Golobokov, Navigation Hydrographic Office Ltd., August 2013.


Over the last couple of days I have had my first hands-on experience with the SeaBat T20-P.

I am an experienced surveyor with experience from many different installations and jobs. The SeaBat T20-P was installed and interfaced on board two different vessels.

Benefits of online analysis of sound speed profiles during data acquisition

morten solvsteen
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.


Pipeline surveying from a surface vessel in the Caspian sea


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. PDS2000 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. (more…)

The case of herring-eating killer whales


Observing interactions between predators and prey: the case of herring-eating killer whales

By Filipa Samarra
Killer whales, as top predators can have important impacts on marine food webs, but understanding these impacts, particularly in the face of changing environmental conditions requires an understanding of the adaptability of their feeding behavior. (more…)

Get all the bathy data the first time with MultiDetect for SeaBat


MultiDetect is a new feature Teledyne RESON have implemented which allows the sonar to export multiple returns per beam, thereby giving you soundings on objects in the water column.

If you are surveying over a fish ball, you get the strongest return from the fish, which the sonar traditionally designates as the “bottom”. And then you are left with a hole on the seafloor. But, with Multidetect, you will also get the 2nd return that made it through the fish ball as well.

Below is a perfect example of one advantage of MultiDetect from a SeaBat T20-P demo we did with last week in Tampa. Surveying over a large school of fish, you can see the fish in the water column and all the corresponding holes in the bathymetry data on the seafloor underneath.

Surveying in the most remote place in the world, Antarctica

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 SeaBat 7125-SV2 multibeam sonar 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.

Monitoring Basking Sharks



Biologists from Aberdeen University wanted to find out if sonar equipment could be used to learn more about the movements of basking sharks. Most of the current knowledge about basking sharks is based on what is visible at the surface and, as such, an investigation was sought to determine if surface observations matched what was happening below the surface. In particular, the scientists were interested to know if the sharks were ‘stacking’, and whether there was evidence of young sharks.

To support this research, Teledyne RESON supplied Aberdeen University with a SeaBat 7128 forward-looking multibeam sonar system. The project was carried out from 7-9 August 2012 off the waters of Coll in the Inner Hebrides of Scotland. Basking sharks are known to reside here and sightings are particularly common at this time of year.


Mapping the Channel of the Colorado River in Grand Canyon



Researchers from Northern Arizona University and the U.S. Geological Survey’s Grand Canyon Monitoring and Research Center are conducting survey operations to map the channel of the Colorado River in Grand Canyon National Park. The channel mapping project is part of a large federal effort, called the Glen Canyon Adaptive Management Program, to investigate and mitigate the effects of flows from the Glen Canyon Dam on the downstream environment. The completion of Glen Canyon Dam in 1963 caused a 95% reduction in the delivery of fine-sediment (that is, sand-sized and finer material) to the modern river, reduced the magnitude and frequency of floods, and changed the seasonal flow pattern to regime of daily fluctuations. (more…)

Port of Rotterdam saves approx. €150,000 per year using SeaBat sonars



The Port of Rotterdam is an open deep-water port in the river estuary Maas. The location of the port in an estuarine environment necessitates maintenance dredging due to siltation ’attacks’ from both tidal current and river discharge. Siltation from the sea, coming in during the flood tide and eroded materials from the hinterland transported in the river flow results in a total of 6.000.000 m3 of maintenance dredging works in the port basins every year.

Effective solutions for inspections of coastal infrastructure


Have you ever wondered how to effectively find out what the seabed looks like in a harbor or how to gather comprehensive information of your coastal infrastructure? According to Hydrographic Survey Engineer, M.Sc. (Surveying), Jani Pötrönen from the Finnish company Meritaito, the solution is acombination of high resolution multibeam (MBES) survey, mobile laser scanning and scanning sonar technology.


Hydrographic Case studies from The Port of London


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



Hydrography in Antarctica on a sailboat

In conjunction with the Underwater Technology Seminar we hosted an online contest for showcasing the best Multibeam sonar videos. The contest is was called: ”the hunt for the world’s best multibeam sonar video.”

One of the videos submitted to the contest was a joint venture between Xplore Expedition, Skyring Marine and SHOM and is called Hydrography in Antarctica on sailboat Xplore .
The video tells the story of mounting a Seabat 7125 on a sailing boat, sailing to the Antarctica and then do hydrography.


A Pathway to Multithreat Assessment Through Integrated Multibeam Sonar

Chris Malzone, Danny Wake and Jeff Bartkowski from Teledyne Reson has reached the cover of the March issue of Sea Technology.

A Pathway to Multithreat Assessment Through Integrated Multibeam Sonar

Combining Lidar and Bathymetric Data to Monitor Ports and Harbors


The use of multibeam echosounders for hydrographic applications is well documented and has been widely accepted for decades. Improvements in resolution, accuracy, sampling rates, signal processing and software enhancements have further expanded the number of requirements that these sensors can address.


From wrecks to icebergs – video presentation

Watch Duncan Mallace, Managing Director of NetSurvey Limited, explain about expeditions which included icebergs and wrecks from World War Two in this video white paper. See the exciting data images and hear how his survey company mounted their SeaBat 7125-SV2 on their vessel.

Join RESON’s User Conference group on Linkedin



Video: Multibeam project planning considerations

During the RESON User Conference in Miami, a lot of interesting presentations were held. One of them was by Juan Gardner from Fugro Pelagos, Inc. In this presentation, he talks about how to plan a multibeam project.

The information in this presentation can be used to make an informed estimate of how your RESON mulitibeam system will perform in particular geographic regions. According to Mr. Gardner, combining these estimates with a few other practical tools will result in more informed survey estimates. Juan Gardner is resources technical manager at Fugro Pelagos Inc. The 2012 US RESON User conference was held in Miami from November 6-9, 2012.

Join RESON’s User Conference group on Linkedin

Click here for more videos from the US User Conference in Miami 

Southampton Port Hydrographer using the Seabat 7101 for channel surveys.

Billy Johnson, Southampton Port Hydrographer talks about advantages using the Seabat 7101 for channel surveys.