Opportunistic Multibeam Surveying

Deep-sea Research Expeditions Expand Multibeam Bathymetric Map of Seafloor
Currently only ten to fifteen percent of the ocean floor has been mapped at resolutions of 100-metre pixel size or better and the vast majority of this mapped area is within territorial waters. One way to significantly increase seafloor coverage is to outsource data collection to non-hydrographic vessels or ships of opportunity. However, data currently being collected by these vessels are largely unmanaged, leading to possible redundant coverage and/or inconsistent quality. It is a good idea that the scientific and hydrographic communities make effective use of ships of opportunity in order to optimise data collection in the immense areas in... (read more)
2015-08-26 11:54:30

Multibeam Operator Training Course

MosaicHydro (Canada) has announced a 5-day Multibeam Operator Training Course offered in Sidney, BC (Canada) from 3 to 7 March 2008 at a cost of USD3200 per student. The course intended for Surveyors new to Multibeam Echosounder Surveys and will include 27+ hours of in class training and 8 hours on a multibeam survey vessel.   Visit the website for complete course details and registration instructions. Space is limited to 9 participants and at this moment the course is half full. (read more)
2007-11-29 09:54:57

Multibeam Sonar Training Course

This comprehensive six-day course is designed to provide a theoretical and practical background in multibeam survey technology and techniques for hydrographic surveys, continental shelf boundary delimitation, offshore engineering, harbor dredging, fisheries habitat, route survey and scientific research, and provides overviews of: • the technology and problems associated with shallow water multibeam surveys,• processing and visualization techniques designed to address the complexities of swath mapping, • constraints on using swath bathymetry to produce highest quality data. (read more)
2016-09-12 11:13:49
2016-11-28 11:53:42

Deepwater Multibeam for COMRA

China’s Ocean Mineral Research and Development Agency (COMRA) has recently taken delivery of its R/V Da Yang for a new generation of deepwater multibeam technology SEA BEAM 3012. The upgrade to 3012 was installed in autumn 2002 and accepted in February 2003 following intensive deepwater trials. SEA BEAM 3012 offers a fully motion-compensated PC-based deepwater multibeam system, achieving motion compensation by swept beam technology. (read more)
2003-10-25 12:00:00

Multibeam Sonar Training Course

The 51st UNB-OMB / UNH-CCOM Multibeam Sonar Training Course, co-hosted by the Directorate of Hydrography and Navigation, Brazilian Navy, will be held from 23-28 November 2009 at the Hotel Orizzonte, Niterói, RJ, Brazil and this will be first time the course has been conducted in South America.     The Multibeam Course is a 36-lecture, 6-day course primarily designed to provide a theoretical and practical background in marine multibeam survey technology and techniques. The information is tailored for those using marine multibeam survey systems in both the traditional hydrographic survey field (for safety of navigation and nautical charting) as well... (read more)
2009-10-19 10:14:45

Faster Multibeam Data Handling

CARIS has released a 64-bit version of its hydrographic processing software HIPS and SIPS. This new version HIPS and SIPS 7.1 will provide users who have access to a 64-bit computer the ability to handle large multibeam sonar datasets even faster.   In-house tests revealed that the CUBE surface creation and Merge processes are now 15-30% faster respectively. The 64-bit technology also allows access to larger banks of RAM, increasing the ability to multi-task while processing. HIPS and SIPS supports over 40 sonar and Lidar formats, allowing it to process data from virtually any system configuration. The software also includes... (read more)
2011-05-05 09:22:52

NetSurvey Multibeam Advances

NetSurvey have recently completed two contrasting projects which they claim advance multibeam technology. The first project was for Pacific Engineering Company (PECO) in Russia and involved supplying personnel, software and multibeam hardware for an Ice Scour survey prior to pipelay operations. The survey, using Reson’s 8125 highest resolution multi-beam echosounder, identified sand wave fields whose height was only 3cms and easily determined the 20-30 cm deep ice scours. A total of nearly 1.8 Billion soundings were collected over the 31 days of survey, which works out at an average of 660 soundings per second. This data was handled by a... (read more)
2004-02-02 12:00:00

Multibeam Water Column Imaging

Kongsberg Maritime’s new multi-beam echo sounder, EM 3002, extends the functionality of multi-beam echo sounders to cover 3D imaging of biomass and other acoustic reflectors that might be present in the water column. 160 acoustic beams are sampled digitally with a spatial resolution of 15cm for each ping, creating a digital image of a slice of the water mass under the transducer. When the ship is sailing forward, a 3D description can be obtained by combining the images from several pings. The raw display image is available as part of the operator interface. An option to the SIS operating software... (read more)
2005-01-20 12:00:00
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