RESON data

Peterhead Port sonar data flythrough

Wed, 03 Sep 2025 14:00:10 GMT

Peterhead Port, located on Scotland’s northeast coast, is home to one of the UK’s most historically significant maritime structures: two large vertical outer breakwaters totalling 1300m in length, in depths of up to 20mCD. Constructed between 1892 and 1956 to form a harbour of refuge, these breakwaters protect the Port from the full impact of the North Sea. With portions now over a century old, the structures remain critical to day-to-day port operations, and their preservation is essential to ensuring the port’s continued functionality and success.

Read the case study

Surveying Artificial Reefs with a SeaBat T51

Tue, 25 Jun 2024 10:50:59 GMT

Artificial reefs make a great playground to produce stunning data when passed over with a SeaBat T51 at 800 kHz. But aside from that they have a more meaningful purpose.

Artificial reefs allow for sea life to recover from a decline in habitat. These reefs act as a recruitment, growth and resting zone for fish species and other sea life.

Artificial reef structures come in all shapes and sizes; giving species places to hide, allowing to live off the seafloor from predatory species, or providing a substrate to grow on.

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Reefs captured with the RESON SeaBat T51-R Multibeam echosounder

All the images of the artificial reefs are captured with a SeaBat T51 at 800 kHz. For your survey this gives you:

Improved decision making: The frequency flexible 700-800kHz sonar array for up to seven times water depth efficiency - this gives you an extreme resolution that captures all the details you need.
350-430kHz sonar operation for traditional and extended range survey requirements maximising your sonar usage
Hands-free: This model comes with Autonomous Sonar Controls – allowing the operator to focus on other tasks than controlling the sonar

Surveying the wreck of the HMS Hood (1891)

Tue, 23 Apr 2024 11:35:47 GMT

See how Teledyne Marine surveyed the wreck of HMS Hood with the Teledyne RESON SeaBat T51 800 kilo hertz multibeam echosounder.

In August 2023, Teledyne Marine set out to survey the wreck of HMS Hood (1891). The purpose of the survey was to document the status of the wreck with the latest in high resolution sonar technology.

The wreck is located at the entrance of Portland Harbour, Dorset, UK. HMS Hood was built in 1891 with an impressive length of 125 meters. In 1914, after 20 years of service, she was deliberately sunk to act as a “blockship,” to stop U-boats or torpedoes from entering the port.

Still faithfully resting at the harbour entry, the wreck of HMS Hood, once a popular dive spot, is deteriorating with age and it is understood, no longer safe to dive on.

By using the Teledyne RESON SeaBat T51 800 kilo hertz multibeam echosounder with the full swath and the smallest available receiver beamwidth, Teledyne Marine determined the status of the ship – delivering detailed, and accurate images of this largely forgotten piece of local naval history.

Learn more about the RESON SeaBat T51.

Wreck survey using a SeaBat T51 (800kHz)

Mon, 02 Oct 2023 11:04:20 GMT

Wreck survey using a SeaBat T51 (800kHz) on a Maritime Robotics ASV.

You would be surprised what you can find at the bottom of the sea in a small harbour. Rumours have it there was treasure to be found. We withhold all comments. Meanwhile, enjoy stunning SeaBat T51 (800kHz) data across this wreck.

Cable Detection using a SeaBat T51 (800kHz)

Mon, 02 Oct 2023 11:03:07 GMT

Cable Detection using a SeaBat T51 (800kHz) on a maritime Robotics ASV

With the finest receiver beamwidth available, the SeaBat T51 is perfectly suited to detect small objects. What’s more, the SeaBat T51 uniquely offers full swath width of up to 170° at 800kHz frequency. Without compromising resolution for efficiency, users benefit from dense data high quality and shorter survey time. In this video we demonstrate a small cable being detected in water depths over 9 m.

Teledyne Multibeam and Laser Solution Demonstrated at TMTW 2019 in San Diego

Wed, 30 Oct 2019 10:30:02 GMT

The inspection of a bridge above and below the water line in a single survey was demonstrated by Teledyne RESON and Teledyne Optech during TMTW 2019 in the Mission Bay area in San Diego.

Complete dataset acquired, processed and plotted as a pointcloud in Teledyne PDS.

Exported pointcloud data visualized against Bing Maps using BlueView Quickstitch

Data acquired using a SeaBat T50-P Multibeam Sonar and an Optech TLS-M3 Laser Scanner

SeaBat F50 data

Fri, 23 Nov 2018 11:42:56 GMT

The SeaBat F50 is a high-resolution forward-looking sonar system operating at 200kHz or 400kHz that illuminates a wide 140° horizontal sector ahead of the sonar head assembly. The SeaBat F50 may be mounted on a surface vessel, submarine, AUV or ROV and is available in depth ratings up to 6000 meters.

The SeaBat F50 focused beams, high ping rate and bandwidth combine to provide the user with superior resolution and image quality. The use of multibeam sonar technology allows for nearly instantaneous update of the sonar image, which provides information to the user faster than mechanically scanning sonars.

Combined Multibeam and LIDAR survay 2017

Tue, 13 Mar 2018 14:25:21 GMT

A video from a survey to monitor changes in a historical structure over time. The breakwater, which is between 200 and 300 years old and stretches for two kilometres, has suffered damage during storms many times over this period. Annual surveys will create a record of the structure as it currently stands and comparisons between datasets will enable detection of sub-centimetre movements over time.

The survey combines LIDAR and Multibeam scans to produce a single model of above and below water.

Difference models show

Erosion (scour) or deposition of sediment.
Displacement of rock armour
Subsidence of structures
Ross of material.

LiDAR scans were done above water with minimum possible water level to ensure maximum survey area coverage.

Laser Scanning of:

Rock armour revetments
Vertical masonry walls
Masonry and concrete paved areas
Slipway
Lighthouse

Multibeam scans were done below water level, at suitable tidal level to allow overlap of results with above water laser scan survey.

Sonar Scanning of:

Vertical walls,
Slipway,
Rock armour revetment,
seabed bathymetry and features.

The surveys were compared at all locations. The comparison has been done between the original survey (2015) and the current survey, using either:

Point Cloud comparison (distance Cloud to Cloud)
Mesh comparison (After modelling the point cloud into a surface),
Profile section across the seabed and the structures

Teledyne Marine Equipment:

Credit: Hydromaster LDT

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

Wed, 24 May 2017 10:45:55 GMT

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

HMS Hampshire sank on the 5th June 1916 when she struck a mine laid by German U-Boat U75. The wreck is located in approximately 60 meters of water off the west coast of Orkney and sank while en-route to Archangel in Russia. She was transporting Lord Kitchener, Secretary of State for War, to a meeting with Tsar Nicholas II.

Many sailors perished that day and as such the wreck site is considered a war grave and restricted area for shipping and diving. In the run up to the centenary of the loss of the HMS Hampshire permission was given to carry out a condition survey and map the extent of the wreck site.

Sandra Henry continues: “This survey is being undertaken as a mark of respect and remembrance for those who lost their lives aboard, and all those who lost their lives at sea during the First World War.”

Equipped with a SeaBat T-50-P the wreck site was mapped in great detail. The imagery confirmed previous findings that HMS Hampshire capsized as she sank and lies with an upturned hull on the seabed in approximately 60m of water. The superstructure itself is compressed and the hull is damaged in places throughout the length of the vessel. The data was recorded and processed with Teledyne PDS.

Myrtle

Tue, 28 Mar 2017 09:49:18 GMT

The gunnery ship-minesweeper Myrtle was built in England in 1915. The ship arrived to Estonia during the days of the War of Independence as part of the British squadron. The ship was sweeping the German mine barriers from the sea routes. Myrtle was lost on a German minefield near Harilaiu islet on 15 July 1919. The ship was severely damaged in the course of several mine explosions. There were casualties.

http://register.muinas.ee/public.php?menuID=en_wreckregistry&action=view&id=486

Myrtle was surveyed with a Teledyne RESON SeaBat 7125 by the Estonian Maritime Administration Hydrographic Department. Read more

Video Credit: Vladimir Karpin

Krimulda

Tue, 28 Mar 2017 09:49:09 GMT

Latvian steamer, built in England in 1899. Hit a mine on 30 June 1941 and foundered. Five people lost their lives.

http://register.muinas.ee/public.php?menuID=en_wreckregistry&action=view&id=1250

Krimulda was surveyed with a Teledyne RESON SeaBat 7125 by the Estonian Maritime Administration Hydrographic Department. Read more

Video Credit: Vladimir Karpin

Dago

Tue, 28 Mar 2017 09:43:46 GMT

The steamship Dago was built in England in 1912 as a cargo ship. The ship was taken into use by the Russian navy during WWI, and was rebuilt as an armed minesweeper carrying the bow number 4. Dago was anchored West of Osmussaar island on 23 October 1915 due to bad weather, when she was attacked by the German submarine U-9. The torpedo was shot from a short distance and hit the minesweeper right in the center. The vessel foundered immediately.

7 Seven crew members were killed.

http://register.muinas.ee/public.php?menuID=en_wreckregistry&action=view&id=215

Dago was surveyed with a Teledyne RESON SeaBat 7125 by the

Estonian Maritime Administration Hydrographic Department. Read more

Video Credit: Vladimir Karpin

Teledyne logo found with sonar in Austin Texas

Fri, 29 Nov 2013 16:57:21 GMT

During November 19- 21 Teledyne RESON held the third and last Underwater Technology Seminar in 2013.More than 100 participants from Americas joined the event at an exclusive resort at the seashore of Lake LBJ near Austin, Texas.

When surveying the lake during the first day something unexpected happened. The SeaBat picked up this object!

Taputeranga Pinnacles - Survey

Mon, 12 Nov 2012 15:13:57 GMT

Taputeranga Pinnacles - Survey

South Seas Wreck survey

Mon, 12 Nov 2012 15:13:00 GMT

South Seas Wreck survey

Example of Full Rate Dual Head

Mon, 12 Nov 2012 15:11:06 GMT

RESON’s Feature Packs are a series of software and hardware upgrades that improves the functionality and performance by increasing features available on your SeaBat sonar.

Feature pack 4 (FP4) is the latest release in the series and is available for the SeaBat 7125-SV2 hardware platform.

FP4 includes optional Full Rate Dual Head (FRDH) as depicted in the video above.

Feature Pack 4 - including FRDH - is available for the SeaBat 7125.

When using Full Rate Dual Head, you get:
–Effective 160 degrees coverage
–Equivalent of 12x water depth
–Up to 1024 beams

8125-H with Flex Mode

Wed, 25 Jan 2012 13:45:04 GMT

Flex mode is one of the new beam modes that have been introduced with FP2 replacing the old Equi-angle/equi-distant selections.

• The data in this video is collected off a small (10m) boat off Santa Barbara on a 0.75m concrete pipe. Water depth varies between 8 & 20m.
• The green dots are the bottom detect and the two yellow lines are the adaptive gates which help to remove noise in the data thus leading to less editing time.
• Flex mode allows users to choose the overall swath width and then steer a narrow sector of extremely high density beams to follow a target like a pipe.
• Flex mode gives a very high sounding density over a designated target whilst still providing coverage out to the sides.

Watch more FlexMode

• Find more details about Flex mode in this application note: Feature Pack 2 Pipe survey comparison using FlexMode

• Features Pack 2 is available for 7125-SV2, ROV2, 8125-Hybrid and 7101.

Get more information about RESON Sonar Installer software

Survey of Port of Constanza in Romania Part 2

Tue, 20 Dec 2011 10:58:46 GMT

Port of Constance (Romania) surveyed using the SeaBat 7125 with POS MV Wavemaster and Riegle VZ400 laser scanner all collected and calibrated with Teledyne PDS.

Go to part 1

Get more information about PDS2000 Software or the SeaBat 7125

Wreck survey with 7125SV2 and POSMV Wavemaste 2

Mon, 05 Dec 2011 13:35:10 GMT

Wreck survey with a RESON SeaBat multibeam sonar system 7125SV2 and POSMV Wavemaste

Watch part 1

Get more info about the SeaBat 7125 multibeam sonar system

Wreck survey with 7125SV2 and POSMV Wavemaste 1

Mon, 05 Dec 2011 13:11:24 GMT

Wreck survey with a RESON SeaBat multibeam sonar system 7125SV2 and POSMV Wavemaste

Watch part 2

Get more info about the SeaBat 7125 multibeam sonar system

Quay Wall Inspection - SeaBat 8125

Mon, 05 Dec 2011 11:05:38 GMT

Inspection of a quay wall in Casablanca Morocco Harbour using a legacy Seabat 8125

Pipeline survey with FlexMode part 1

Mon, 25 Jul 2011 17:45:26 GMT

8125-H Flex mode over a pipeline with autopilot, roll stabilisation and adaptive gating.

Flex mode is one of the new beam modes that have been introduced with FP2 replacing the old Equi-angle/equi-distant selections.

Watch more videos with FlexMode

Get more information about FlexMode