Simulations Show Effects of Buoyancy on Drift in Florida Current

Acquiring a better understanding of how objects drift in the ocean has importance for a wide range of uses, such as tracking algae, predicting the locations of wreckage and debris and better focusing on how to clean up ocean litter. Most ways researchers model such movements have largely been put together piece by piece and lack a systematic approach. One new effort looks to provide a clearer alternative. Researchers have released the results from an experiment aimed at tracking different objects as they drift in the Florida Current, a thermal ocean current that flows from the Straits of Florida around... (read more)
2020-02-13 09:54:59

John Colvin Joins Advanced Navigation As Chief Revenue Officer

Sydney (Australia) based Advanced Navigation, a company specialized in Inertial Navigation Systems, announced the appointment of John Colvin, as Chief Revenue Officer.  “It’s an incredibly exciting time to join Advanced Navigation right now. The strength of our navigation and positioning solutions — and the growth we’re seeing in the global markets — is putting us on a steep upward trajectory,” said Chris Shaw, CEO and co-founder of Advanced Navigation. “John brings an extensive amount of experience and the necessary leadership skills to help guide the business to the next stage of our growth globally, and we’re excited to have him on the team.” "I am looking... (read more)
2020-01-31 03:22:08

“Blue technology industries will help the expansion of the hydrographic market”

A view of hydrographic technology and the market for 2020
In the last decade, there has been a steady march towards the automation of hydrographic data collection. Jim Gardiner, a Research Scientist at Valeport, views the technical and commercial challenges in hydrographic operations. In the last decade, there has been a steady march towards the automation of hydrographic data collection. Jim Gardiner, a Research Scientist at Valeport, views the technical and commercial challenges in hydrographic operations. In terms of multibeam technology, we’ve seen continual advancements from the main players such as Teledyne Reson, Kongsberg, R2Sonic and the emergence of Norbit. Alongside this, there has been a steady improvement of GPS, inertial positioning systems and acquisition/processing software. As the capability of these systems has improved, it has placed a focus on the importance of accurate and reliable sound velocity data. To achieve accurate bathymetry,... (read more)
2020-01-14 12:09:38

Danish Hydrographic Office Turns to GIS For Automated Maritime Charting

A Radical Update Was Needed
Denmark has challenging seascapes to map and chart. It has a rich history of nautical charting that dates back to the seventeenth century, and many of its navigational products for Greenland were created in the 1960s. When GPS started to gain prominence, a radical update was needed. Apart from its 42-mile land border with Germany, the peninsular country of Denmark, with its scores of bays, straits, and fjords,  is surrounded almost entirely by the North and Baltic Seas. Denmark is also composed of more than 400 islands, including the Faroe Islands, located in the Atlantic Ocean between the United Kingdom... (read more)
2019-12-19 02:23:42

World Magnetic Model 2020 Will Be Released Today

The World Magnetic Model is a joint product of the United States’ National Geospatial-Intelligence Agency (NGA) and the United Kingdom’s Defence Geographic Centre (DGC). The WMM was developed jointly by the National Geophysical Data Center (NGDC, Boulder CO, USA) (now the National Centers for Environmental Information (NCEI)) and the British Geological Survey (BGS, Edinburgh, Scotland). As part of the regular update cycle of the World Magnetic Model, NCEI, in collaboration with the British Geological Survey will release the WMM2020 on 10 December 2019. The World Magnetic Model is the standard model used by the US Department of Defense, the UK Ministry... (read more)
2019-12-05 10:24:56

Shipwreck Monitoring in the North Sea

Surveyors Discover World War One Submarine
In order to guarantee nautical depths, the Rijkswaterstaat survey department runs an annual seabed monitoring programme. In July 2019, research vessel MS Arca left its homeport of Scheveningen, the Netherlands, to conduct a shipwreck survey that included a World War One submarine. In order to guarantee nautical depths, the Rijkswaterstaat survey department runs an annual seabed monitoring programme. In July 2019, research vessel MS Arca left its home port of Scheveningen, the Netherlands, to conduct a shipwreck survey that included a World War One submarine.  As an executive agency of the Dutch Ministry of Infrastructure and Water Management, Rijkswaterstaat facilitates smooth and safe maritime traffic in the Dutch North Sea. One of its activities is an annual seabed monitoring programme. Apart from a few deeper spots, the Dutch part of the North Sea is in general 35 metres deep, while the coastal... (read more)
2019-10-03 02:57:46

Successful Tests VTOL Unmanned Air System

Schiebel’s Camcopter S-100 Vertical Takeoff and Landing (VTOL) Unmanned Air System (UAS) performed a five-day maritime surveillance demonstration aboard Offshore Patrol Vessel (OPV) Turva. The flight trials by the Border and Coast Guard Division of the Finnish Border Guard took place at the end of August in the Gulf of Finland. Day and night, the S-100 completed given scenarios including searching, locating and recognizing objects as well as surveillance for maximum situational awareness. The Camcopter S-100 was selected for the shipboard trials because of its proven and reliable UAS for intelligence, surveillance and reconnaissance (ISR) missions, the Austrian company states.... (read more)
2019-09-23 11:21:22

Valeport's Upgraded SWiFT SVP Will Operate Down to 500 Metres

Valeport, a UK-based manufacturer of oceanographic and hydrographic instrumentation, has upgraded its SWiFT SVP. This sound speed profiler now provides enhanced versatility and deployment. An improved depth rating and increased pressure accuracy will become standard on the SWiFT profiler. Following customer feedback, Valeport has introduced this evolution of the SWiFT profiler which is designed with the intention of a seamless workflow at its core, and delivers high accuracy sound velocity, pressure, temperature, salinity and density measurement coupled with the convenience of Bluetooth connectivity, rechargeable battery and an integral GPS module to geo-locate each profile. Increased Profiler’s Pressure Accuracy The improved SWiFT will now operate down... (read more)
2019-08-09 10:15:11

Old Fashioned or Just Safe

Not long before this issue of Hydro International went to press, a major problem with Galileo, the European equivalent of the American GPS system, occurred. A few days later, the malfunctioning system has still not been corrected. It appeared to be an incident related to the Galileo ground infrastructure that resulted in a temporary interruption of the Galileo Initial Services. Disrupted Hydrographic and Oceanographic Operations Galileo is widely used by most of the commercially available receivers. Multi-constellation GNSS receivers will remain unaffected and compute position and timing using other constellations, said experts for the European GNSS Agency, the industry, the... (read more)
2019-08-06 09:01:59

Acoustics Specialist RTSYS Unveils Latest Versatile Micro-AUV

After years of development, French Acoustics specialist RTSYS has unveiled its latest versatile micro-AUV named NemoSens. Less than 1 metre long, and easy to carry and launch (less than 20 pounds including payload), NemoSens can host any kind of payload, be it a CTD probe, side-scan sonar or any other sensors. Thanks to an open LINUX architecture, it can be programmed from a ROS or MOOS interface to complete various kind of missions. Acoustic Beacons Its battery provides wide autonomy (up to 8 hours at 4 knots) with a speed range from 2 to 8 knots, and its robustness allows it... (read more)
2019-07-09 02:58:45
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