Home | Contact ST  

Content on this page requires a newer version of Adobe Flash Player.

Get Adobe Flash player

Follow ST

Ocean Research

2018:  FEB

August 2017 Issue

HUGIN AUV for Sweden’s
Unmanned Marine Research

The University Of Gothenburg has chosen Kongsberg Maritime’s HUGIN AUV to expand Sweden’s capabilities in the field of marine research using unmanned platforms. The University of Gothenburg has chosen a HUGIN configuration rated to 3,000 m, with a range of up to 300 km.

The AUV is due for delivery in February 2018 and will feature an advanced Kongsberg navigation system in addition to an extensive package of Kongsberg and third-party instruments and sensors. Kongsberg will also deliver a HUGIN operator station, payload operator station and acoustic positioning operator station for communication and full control of the HUGIN and payload from the mothership.

Manned Sub for Bahamas
Deep-Sea Survey

OceanGate Expeditions and The Cape Eleuthera Institute are embarking on a Bahamas Deep Sea Survey of the twilight zone of the Exuma Sound using the manned submersible Cyclops 1. Beginning October 2017, with multiple weeks of diving each season over a year, the exploration aims to uncover new details on deep-sea sharks and the variety of species that inhabit the waters off the Great Bahama Bank Continental Shelf.

OceanGate will provide the submersible and dive crew, while The Cape Eleuthera Institute will share the breadth of scientific knowledge of their content experts and their facilities in the Bahamas.

New Trend in Melting of
West Antarctic Ice Sheet

An ice sheet surface twice the size of California melted in one summer in what could become a regular occurrence. The West Antarctic Ice Sheet experienced substantial surface melt through the austral summer of 2015 to 2016 during one of the largest El Niño events of the past 50 years, according to scientists who had been conducting the first comprehensive atmospheric measurements in the region since the 1960s. The team conducting the ARM West Antarctic Radiation Experiment, led by researchers at Scripps Institution of Oceanography, reports that the melting caused by warm air bearing moisture and extensive cloud cover was likely delivered by El Niño over the ice sheet. Melted snow was spotted over most of the Ross Ice Shelf, a thick platform of floating ice that channels about a third of the ice flowing from the West Antarctic Ice Sheet into the ocean.

The West Antarctic Ice Sheet rests on bedrock that is below sea level and is protected by a fringe of floating ice shelves. The melting and disintegration of these ice shelves would accelerate the flow of ice into the ocean. Were the ice sheet to melt completely, as probably occurred during the Earth’s last interglacial period about 125,000 years ago, it contains enough mass to raise global mean sea level by 3 m.

IMarEST Fellowship to Support
Distributed Intelligence Work

The Institute of Marine Engineering, Science & Technology (IMarEST) has awarded its Laurie Prandolini Research Fellowship of $14,000 AUD to Fletcher Thompson, who holds a B.Eng. degree in naval architecture and is a Ph.D. candidate at the Australian Maritime College of the University of Tasmania. This fellowship will support Thompson’s Ph.D. research project, Project FOX (Fleet Operations and eXpeditions), which aims to establish distributed intelligence into an autonomous marine vehicle fleet to exhibit collaborative behaviors.

Fletcher will be able to obtain additional equipment for these vehicles and extend the scope of Project FOX. These resources, such as embedded high-performance 3D image processing systems, laser-scanning modules and high-resolution mono and stereo camera units, will advance navigation and environmental sensing abilities of the fleet to a globally competitive level.

Sampling to Understand
Chukchi Biological Processes

Biological processes in the upper ocean are complex, and understanding them requires measurements of multiple biological and physical properties across a wide range of temporal and spatial scales. In the summertime, the Chukchi Sea is a two-layer system: warm, fresh meltwater formed by ice melting at the surface overlies cold, salty winter water formed during freeze-up.

At the interface between these two layers, temperature and practical salinity can change as much as 5° C and 3 PSU over 2 m. Resolving these thin layers requires fast-sampling, high-resolution instrumentation.

A Sea-Bird SBE 49 FastCAT CTD and ECO Puck (chlorophyll-a, CDOM and turbidity) were integrated onto a towed vehicle, providing high-resolution physical and biological maps of the upper ocean in the Chukchi Sea. These instruments were chosen for their high sampling frequency, compact size and ability to transit the data back in real time, enabling adaptive sampling and the resolution of thin and patchy biological and physical properties.

Harbor Branch Offers Hands-On
Training for Graduate Program

Florida Atlantic University is now providing an unprecedented opportunity for graduate students to earn a master’s degree while working alongside leading scientists and engineers at FAU’s Harbor Branch Oceanographic Institute and the Charles E. Schmidt College of Science. The newly launched marine science and oceanography graduate degree program is for students interested in coastal and oceanographic science. By incorporating the research faculty at Harbor Branch, the program provides a hands-on academic experience.

MacArtney Supplies Multibeam
Solution for Harbor Surveys

Located on the western border between Basque Country and Gascony, the harbor of Bayonne belongs to the region Nouvelle-Aquitaine. Harbor depth data must be provided to the various harbor operators.

MacArtney France has supplied the multibeam solution for a bathymetric vessel to conduct depth surveys. The solution includes a Kongsberg Maritime EM 2040P shallow-water multibeam echosounder, a Valeport miniSVS sound velocity sensor, an iXBlue Hydrins INS, and a Trimble SPS 855 GNSS modular receiver.

2018:  FEB

-back to top-

Sea Technology is read worldwide in more than 115 countries by management, engineers, scientists and technical personnel working in industry, government and educational research institutions. Readers are involved with oceanographic research, fisheries management, offshore oil and gas exploration and production, undersea defense including antisubmarine warfare, ocean mining and commercial diving.