Research Icebreaker Polarstern Begins Antarctic Survey Season

On 10 November 2018, the research icebreaker Polarstern left its homeport of Bremerhaven, bound for Cape Town, South Africa. This marks the beginning of her Antarctic season, in which oceanographic fieldwork in the Weddell Sea, a resupply mission to the Neumayer Station III, and explorations of the Larsen C ice shelf region and the South Shetland Islands are on the agenda. The ship is expected to return to Bremerhaven in June 2019. An expedition to the Larsen C ice shelf abutting the Antarctic Peninsula will be at the heart of the upcoming Antarctic season. The Peninsula is one of the fastest-warming... (read more)
2018-11-13 10:18:46

MAP Team Discovers Oldest Intact Shipwreck in the Black Sea

The Maritime Archaeology Project (MAP) has discovered a Greek merchant vessel in the Black Sea (50 miles off the coast of Bulgaria) dating back to 400 BC - the oldest known intact shipwreck ever discovered. Because the water in the lower reaches is anoxic (lacks oxygen), the wooden cargo vessel has not deteriorated much since it sunk to the bottom all those centuries ago. Its mast, rudders, cargo, and even the benches where rowers sat are still well-preserved. Lidar and photogrammetry to create 3D images of the ships The ship was discovered during a three-year-long project. Over that time, the... (read more)
2018-10-30 11:47:59

30th China Ocean Surveying and Mapping Academic Seminar

The 30th Ocean Surveying and Mapping Academic Seminar was held in Zhuhai on 29 August. The event was hosted by the Ocean Surveying and Mapping Committee of the China Society of Surveying and co-organised by Oceanalpha Intelligent Technology. The conference attracted nearly 200 delegates, including representatives from the Ministry of Natural Resources, the Ministry of Transport, the Ministry of Water Resources, the Chinese Academy of Sciences, the Navy and manufacturers of surveying and mapping instruments. Joint operation of USV, multibeam echosounder and 3D scanner On 31 August, the participants visited Oceanalpha’s unmanned vessel base and watched a demonstration of surveying... (read more)
2018-09-11 09:50:31

USVs Conduct Underwater Topographic Survey in the Antarctic

In November 2017, China’s 34th Antarctic scientific expedition was officially launched. Two Oceanalpha M80 submarine exploration unmanned surface vehicles (USVs) and two SE40 hydrographic USVs accompanied the polar scientific research ship ‘Snow Dragon’ all the way south to Inexpressible Island on the west bank of the Ross Sea to assist in the construction of China's fifth Antarctic research station. Since the Ross Sea area had never been explored before, there was insufficient geographical data, making it difficult to find the ideal anchorage for the Snow Dragon. The USVs contributed to solving that problem by collecting bathymetric and topographic data. On 24... (read more)
2018-08-07 08:31:58

Providing Security and Military ROV Solutions

Deep Ocean Engineering (DOE, USA) delivered a Phantom HD2+2 to the Federal Bureau of Investigation (FBI), New York Underwater Evidence Search Team. This vehicle’s maiden launch was as a search vehicle to the Cayuga Lake Search Project. The vehicle was also used to recover bodies from the New Melones Lake, evidence in a California crime case. The FBI project tasks included survey, monitoring and other initiatives associated with evidence gathering and research. With current events as they are, the military market has challenging new requirements that exceed the capabilities of off-the-shelf technology. For those especially challenging military applications, Deep Ocean... (read more)
2018-07-23 09:20:46

Mapping the Seafloor with Remote Sensing and Satellite Imagery

An Analysis of the Techniques and Benefits of These Methods
70% of the Earth is covered by water, but so far just 7% of it has been surveyed (Mars, Venus and the Moon are better surveyed). Hydrography as a science has changed dramatically since the first measurements were made by Alexander Dalrymple and James Cook with lead lines and sextants. Singlebeam echosounders were invented in the 1920s – a technology still used today for mapping the seafloor. This method of using echosounders can produce very high-resolution bathymetric data but the high operational costs and the slow working process make it economically unsuitable for covering large areas. However, with the ongoing expenses of... (read more)
2018-06-19 09:23:54

GRACE Follow-up Mission to Keep Close Eye on Ice Loss

A few months ago, the GRACE mission’s two Earth observation satellites burnt up in the atmosphere. Although this loss was planned, for the experts at the Alfred Wegener Institute it left a considerable gap in monitoring ice loss in the Antarctic and Greenland. Now the follow-up mission will finally be launched, and will play a vital role in predicting future sea level rise. One of the greatest threats in connection with climate change is the continuing rise in sea level – and the more intensively the enormous ice sheets in Greenland and the Antarctic melt, the worse it will become.... (read more)
2018-05-18 10:42:21

Hydrographic Surveying in the Port of London

Charting for the 21st Century
By the end of this year, the gap will have finally closed on the mandatory requirements for ships to carry an Electronic Chart Display and Information System (ECDIS), with all existing vessels of over 10,000GT being required to be so equipped (all new vessels greater than 3,000GT already have to comply). This article explores the provision of the chart data for the Electronic Navigation Charts (ENC) available to such systems and how the UK's Port of London Authority (PLA), as a major port, is providing such data. This article has been brought to you by Teledyne CARIS To survey the... (read more)
2018-05-15 08:23:35

iXblue Equips Manned Submersible for New 'Titanic' Survey Expedition

OceanGate, a provider of manned submersible services, and iXblue, a global company that provides innovative solutions for navigation, positioning and underwater imaging, are combining forces to conduct the first manned submersible expedition to the wreck of the RMS 'Titanic' since 2005. iXblue’s Phins 6000 inertial navigation system and Posidonia USBL positioning system will both be used for the accurate and reliable navigation and positioning of OceanGate’s 'Titan', the newest addition to the company’s fleet of deep -sea manned submersibles and the first privately owned manned submersible capable of reaching 'Titanic' depths. “Our submersible pilots have relied on Phins from iXblue... (read more)
2018-05-01 09:41:20

Mapping the Deep Ocean with Multiple AUVs

Ocean Infinity’s Seabed Exploration Project
Ocean Infinity’s seabed mapping campaign commenced in the summer of 2017. The Ocean Infinity team is made up of individuals from multiple disciplines, who have gained vast experience with deep-sea exploration operations in the past. Their combined knowledge and insight led to the idea to undertake deep-sea mapping operations using up to eight autonomous underwater vehicles (AUVs), paired with eight unmanned surface vessels (USVs). This novel concept is explained in more detail in this article. Human inquisition drives us to explore. This has led man to delve below the surface of the oceans. Our ability to understand the undersea world... (read more)
2018-04-24 09:22:31
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