USV Completes First Autonomous Circumnavigation of Antarctica

High-quality and Reliable Data Is Needed for Research Use
A 7m (23ft) long, wind-powered unmanned surface vehicle (USV) has become the first unmanned system to circumnavigate Antarctica. Known as SD 1020 and equipped with a suite of science-grade sensors, the vehicle collected data in previously uncharted waters, enabling new key insights into ocean and climate processes. A 7m (23ft) long, wind-powered unmanned surface vehicle (USV) has become the first unmanned system to circumnavigate Antarctica. Known as SD 1020 and equipped with a suite of science-grade sensors, the vehicle collected data in previously uncharted waters, enabling new key insights into ocean and climate processes. USV SD 1020 left for the 196-day mission from Southport in Bluff, New Zealand, on 19 January 2019. It returned to the same port on 3 August after sailing over 22,000km (13,670 miles or 11,879 nautical miles) around Antarctica. During the mission, the vehicle survived freezing temperatures, 15m (50ft) waves, 130km/h (80mph) winds... (read more)
2019-10-03 03:08:58

Preparing for Hydrographic Artificial Intelligence Network and Systems

Success Depends on the Quantity and Quality of All Available Data
With the ever-increasing and affordable availability of capacity and computing power to process and store data, the emergence of artificial intelligence (AI) in marine geomatics, ocean sciences and hydrography is palpable. Mathematical models are very powerful, but their reliability must be validated and demonstrated using calibration points. It's the same thing for AI. It cannot emulate and learn properly if it cannot rely on observations that represent reality. In the commercial shipping world, AI-based technologies are about to be tested, resulting in additional bathymetry and hydrography needs that will quickly become necessary and critical. Commercial Marine Autonomous Surface Ships (MASS)... (read more)
2019-08-06 09:50:55

Neptune Adopts Sonardyne’s All-in-one Technology Platform

Australian headquartered subsea services specialist Neptune has become the latest company to adopt Sonardyne International's new all-in-one acoustic and inertial positioning technology platform to support its offshore survey projects. The order, made through Sonardyne’s Singapore subsidiary, includes the supply of Fusion 2 software, Compatt 6 seabed transponders and ROVNav 6 LBL (Long BaseLine) vehicle-mounted transceivers. The Compatt 6s and ROVNav 6s will be Sonardyne’s latest ‘plus’ hardware platform (6+), engineered to unlock the full capabilities of Fusion 2. Seamless Environment Built from the ground up Fusion 2 software offers a seamless environment in which surveyors can perform all of their... (read more)
2019-07-10 01:41:41

Subsea vehicles equipped with Sonardyne navigation technology

Oceaneering International Inc. has ordered hybrid navigation systems from underwater technology specialist Sonardyne Inc. for its subsea resident vehicles Freedom and E-ROV. The two resident vehicle systems are to be fitted with Sonardyne’s SPRINT-Nav an all-in-one navigational instrument. SPRINT-Nav combines a SPRINT INS sensor, Syrinx 600 kHz DVL (Doppler velocity log) and a high accuracy intelligent pressure sensor in a single unit, making it one of the smallest and highest performing combined inertial navigation instruments on the market. Maintenance Free-deployments Oceaneering’s E-ROV has already proven the ability for battery powered remotely operated vehicles (ROVs) working in the oil and gas industry... (read more)
2019-05-13 11:05:51

Turner Designs Introduce Ultra Low-power Sensors

Turner Designs has introduced the C-FLUOR Submersible Probes. The probe sensors are sensitive, low power single wavelength in situ fluorescence and are available in several optical configurations. Requiring a maximum of 12mA current at 12VDC input, C-FLUOR probes can be integrated and deployed for longer intervals than previously possible with submersible probes.  Resistance to Corrosion With a response time of fewer than 0.6 seconds, the probes require less power, outputting data soon after power is applied. Factory-calibrated, each C-FLUOR ships with a calibration certificate used to convert the analogue output signal to a specific concentration estimate. The Titanium construction allows for a... (read more)
2019-04-23 09:38:27

Optimizing a Low-cost Multi Sensor System for Hydrographic Depth Determination

Surveying devices with lower costs are being welcomed by hobbyists eager to determine water depth. The Department of Geodesy and Geomatics at HafenCity University (HCU) in Hamburg has been working on cost-efficient solutions in recent years. With shallow water surveys not required to be performed with the accuracy and precision of industrial projects, surveying devices with lower costs are being welcomed by hobbyists eager to determine water depth. With this low-cost demand rising, the investigative development of these products has become a scientific research issue. The Department of Geodesy and Geomatics at HafenCity University (HCU) in Hamburg has been working on cost-efficient solutions in recent years.  The Old Openseamap Project During a project with openseamap.org, a Multi Sensor System (MSS) including an Echo sounder, GPS and inertial measurement unit (IMU) was built up and tested. Despite... (read more)
2019-04-08 01:44:05

Fusion 2 – An Evolution in Offshore Survey Operations

Complex set-up operations, multiple topside systems and interfaces, and arduous workflows; these are all now in the past. Sonardyne’s Fusion 2 survey software combines intuitive workflows with faster, more flexible INS, LBL and Sparse LBL aided INS operations - all from a single system. Since surveyors and subsea construction operatives took their first steps into the US Gulf of Mexico, followed by the harsh waters of the North Sea and beyond, the industry has been on a learning curve. From taut wire through to today’s digital signalling architectures, systems and methodologies, the industry has evolved. Developments in signalling technology have... (read more)
2019-04-05 12:59:12

Real-time Validation of CoVadem Derived Water Depths

By Using Locations with a Fixated Riverbed
CoVadem has created an up-to-date depth chart of inland waterways. The underlying data obtained came from vessels participating in the CoVadem initiative, each sharing their sensor data in the CoVadem cloud-based processing environment. To make sure the underlying data is both accurate and reliable, we need a method that automatically filters out erroneous measurements. This article presents a method in which measurements are compared in real-time at locations with a fixated riverbed (e.g. not eroding or aggrading over time). A growing fleet of roughly fifty vessels participating in the CoVadem initiative continuously measure, log and broadcast data from onboard sensors.... (read more)
2019-02-04 11:13:08

Hydrographic Surveyor based in Aberdeen (UK)

General OverviewTeledyne Marine has a fantastic opportunity for a Hydrographic Surveyor to represent the company with the technical knowledge and skills to provide the highest levels of support, providing our customers with innovative solutions. The position will be based in Aberdeen (UK) and involves extensive travel. Teledyne Marine is a group of leading-edge undersea technology companies that have been assembled by Teledyne Technologies Incorporated. Over the past 10 years, through acquisitions and collaboration, Teledyne Marine has evolved into an industry powerhouse, bringing the best of the best together under a single umbrella. With technologies divided into 5 core segments; Imaging,... (read more)
2019-01-25 10:16:48

ASL Announces Next Generation in Acoustic Backscatter Measurements

A new tool to measure both sediment concentration and sediment size are being built by ASL Environmental Sciences (ASL). The Multi-frequency Ultrasonic Device (MUD) is based on ASL's successful Acoustic Zooplankton Fish Profiler (AZFP). The MUD and AZFP echosounders can be configured with up to four frequencies ranging from 38 kHz to 2 MHz. The MUD prototype is based on a set of higher frequencies (200 kHz, 769 kHz, 1.2 MHz and 2.0 MHz) that will allow for a broad range of particle size discrimination. While the AZFP is a high gain device for low scattering conditions and the greatest... (read more)
2019-01-08 08:16:34
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