Supply Hydrographic Personnel

Hydro INTERNATIONAL Interviews Johan Stam, Business Development Manager, Atlas Services Group
There is a global shortage of hydrographic surveyors. The industry is faced with an interesting challenge and looks to specialised education facilities and personnel suppliers to assist in solving this problem. Even in times of high unemployment it can be difficult to find sufficient skilled personnel to carry out hydrographic survey work in the offshore environment. Hydrographic educational institutions around the world are struggling to attract enough students, resulting in noticeable shortages of trainees within the survey departments of large and small survey contracting companies. Although working conditions have improved considerably over recent decades, the environment in which hydrographic surveyors... (read more)
2008-01-01 01:00:00

Synthetic Aperture Sonar Challenges

Synthetic aperture sonar (SAS) has been under active development for decades. The technique is particularly well suited for autonomous underwater vehicles, and it is expected that SAS will replace traditional side-scan sonars for many ‘high-end’ AUV applications in the years to come. Research systems have been used for more than 15 years and many R&D groups around the world have been able to present images that would not have been possible to produce using traditional sonars. However, in many cases, these impressive sonar images are the result of days of tuning and tweaking by experts. A lot of effort has... (read more)
2008-05-15 12:00:00

Lessons Learned From the AF447 Search

Hydro International Interviews Mike Purcell
It was a rainy day at Woods Hole, Massachusetts, USA. The scenery reminds me of the Twin Peaks atmosphere. I am about to interview Mike Purcell, the man whose search team finally found the wreckage of flight AF447 in the deep ocean in 2011. Only five years after this tragedy a second airliner, the MH370, vanished into the deep ocean. Major search operations have been going on since then. Hydro International found this to be a good reason to look back with Mike and see what lessons have been learned in this deep ocean search operation. When did WHOI get... (read more)
2015-01-29 03:25:33

Businesswoman in the Middle East

Interview with Susan Murray, General Manager of the Seatronics’ Middle East office
Ms Murray joined Oceonics (the forerunner of Seatronics) in 1981. It was here that she got her first taste of business in the hydrographic Industry, specifically in the sales environment. After spending a couple of years gaining valuable experience with another equipment rental company in Aberdeen, she returned to Oceonics as Sales Manager. Between 1987 and 1996 she was the General Manager of her own equipment rental company in Aberdeen, selling this in 1996. In 2000 she decided it was time to move on and, believing herself too young to retire, agreed to take on the role of Middle East... (read more)
2008-01-01 01:00:00

SeaRobotics Corporation

Small affordable USVs for hydrographic data gathering
SeaRobotics Corporation was formed in 1999 to commercialise technology developed by the US Navy’s Office of Naval Research (ONR). After working with Autonomous Underwater Vehicle (AUV) technology and developing numerous communication systems utilising ad hoc networking for the transportation community, SeaRobotics continued its quest to develop autonomous systems for the hydrographic and oceanographic survey community. Extensive experience developing AUVs, ROVs and oceanographic instruments has led to the development of a growing family of Autonomous and Unmanned Surface Vehicles (USVs) and other marine robotic products in Florida, USA. During the last few years, significant interest in autonomous and unmanned vehicles has... (read more)
2008-01-01 01:00:00

Technology in Focus: Multi-beam Echosounders

New Technology, New Capabilities and New Markets
The evolution of multi-beam echo sounders (MBES) is leading to systems with enhanced capabilities in their traditional markets, but also provides features to allow the expansion of their use into new areas and applications. This short review highlights some of the features of the latest generation of systems. The attributes of an MBES system are traditionally described by technical specifications, such as operating frequency, pulse length, beamwidth, number of beams and coverage. These technical parameters define the nature of the system, but the fundamental characteristics of greatest interest. By Dave Mann, Gardline Geosurvey, UK. Just as technological advances mean there... (read more)
2013-03-26 02:25:34

Great Potential for SAS in Hydrography

Using Synthetic Aperture Sonar as an Effective Hydrographic Survey Tool
Synthetic Aperture Sonar (SAS) has been around for over a decade but its primary purpose has been in mine detection rather than hydrographic surveying. To use SAS effectively a stable survey platform is required such as an autonomous underwater vehicle (AUV). These platforms are becoming more commonly used in hydrographic surveying and as a result the viability of SAS as a survey sensor seems a logical progression for the industry with the suggested benefit of increased data quality, better resolution and a pathway to a more modern data-centric survey deliverable. SAS is a technique for creating high-resolution seabed reflectivity images... (read more)
2015-04-03 01:32:11

Hydrographic Data Science

The Art and Craft of Making Useful Hydrography
We are seeing the introduction and application of automated technologies everywhere that supplant the common and accepted ways of doing jobs, writes Paul Cooper. Indeed, the pages of Hydro International are often dominated by examples of such applications, and most of us can think of concrete situations or comparisons between ‘then and now’. Modernisation and new thinking are dramatically changing the way hydrography is collected, processed and made available to users. As the focus is shifting from data collection to data analysis, hydrographic data scientists are becoming increasingly important. When I reported on board at the Naval Oceanographic Office in 1971, we had just... (read more)
2018-01-09 08:44:12

Innovator Measuring ‘Salt Fingers’

Interview with Albert J. Williams III, Woods Hole Oceanographic Institution, USA
Mr Albert J. Williams III was given the IEEE OES Distinguished Technical Achievement Award in 2000; a prestigious prize, as one of the earlier winners was Robert J. Urick. Mr Williams has spent many years at Woods Hole Oceanographic Institution doing research in oceanography and developing instruments for current and for shear measurements. He chairs the IEEE Current Measurement Technology Conference in March 2003 in San Diego. It thus seemed a good moment to ask Mr Williams about his career, developments of today and tomorrow in current measurement equipment, and the Current Measurement Technology Conference. Please give our readers a... (read more)
2008-01-01 01:00:00

The European Seafloor Observatory Network (ESONET)

ESONET proposes a network of sea floor observatories around the European Ocean Margin, from the Arctic Ocean to the Black Sea, for strategic long-term monitoring as part of the European GMES (Global Monitoring for Environment and Security). The network will have capabilities in geophysics, geotechnics, chemistry, biochemistry, oceanography, biology and fisheries. Long-term data collection and alarm capability in the event of hazards (e.g. earthquakes) will be considered. Ten initial areas for ESONET development have already been identified, in addition to a mobile emergency response station. The submarine terrain around Europe, from the continental shelves to 4,000 m depth, is known... (read more)
2008-01-01 01:00:00
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