Unmanned Boat Used in High-salinity Brine Lake

In early July 2020, an OceanAlpha ME120 unmanned surface vessel (USV) joined the national potash mining project in Lop Nur in the Chinese province of Xinjiang to conduct routine bathymetric surveys. Lop Nur used to be the largest lake in north-western China before it dried up in 1972. Known as the ‘Sea of Death’, Lop Nur is located in the south-eastern part of Xinjiang Uygur Autonomous Region. It is now an enormous desert, with no grass, streams or birds, where summer temperatures can reach record highs. So, what is an unmanned boat doing in a dry lake? Following a discovery by... (read more)
2020-09-01 12:47:35

Subsea Autonomy is Moving Beyond Waypoints

Underwater an AUV Must Rely Upon its Own Sensor Network
The AUV has been the tool of choice for shallow-water MCM and EOD operations for a number of years. The coverage by popular news channels of unfortunate events, such as the MH370 tragedy, has also shown that the AUV has undisputedly become the tool of choice to carry out salvage operations at extreme depths. The AUV has no physical link to the surface and the majority of missions are still pre-programmed by a human, which can be time consuming and error prone. Missions are normally a sequence of defined waypoints where the AUV may be required to carry out certain... (read more)
2020-06-09 09:41:02

How GPS Trackers and Drones Help Locate Floating Debris

An estimated 600,000 tons of abandoned fishing gear ends up in the oceans every year. According to the United Nations, some 380,000 marine mammals are killed each year, either by ingesting it or being caught in it. Mary T Crowly of the Ocean Voyages Institute describes how GPS trackers are being used to mark the ghost nets. An estimated 600,000 tons of abandoned fishing gear ends up in the oceans every year. According to the United Nations, some 380,000 marine mammals are killed each year, either by ingesting it or being caught in it. Mary T Crowly of the Ocean Voyages Institute describes how GPS trackers are being used to mark the ghost nets. The Ocean Voyages Institute is a non-profit organization based in Sausalito, California (US). It leads the way in utilizing and adapting existing maritime equipment with innovative approaches to ocean cleanup. For the past 40 years, the Ocean Voyages Institute has devoted its efforts to... (read more)
2020-04-02 12:20:06

How to Simplify Survey Reporting

Wouldn’t it be great to work on a hydrographic project without spending a lot of time looking for all the elements needed for a professional report? This was what Sanyal Sunil had in mind when he developed SURge, a digital tool to simplify survey reporting. Wouldn’t it be great to work on a hydrographic project without spending a lot of time looking for all the elements needed for a professional report? This was what Sanyal Sunil had in mind when he developed SURge, a digital tool to simplify survey reporting. Hydrographic survey reporting has always been a headache for surveyors in the field, as they have to spend a lot of time formatting the reports, finding the correct logos and diagrams, displaying observations schematically, and carrying out irrelevant calculations, all of which have to be neatly represented in the report but have nothing to do... (read more)
2020-02-24 02:03:38

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 in 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
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