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Sensor upgrades for deepwater survey AUVs

Tony George presents a comparison of data collected with the first and second generation autonomous underwater vehicles

Seismic fleet targets 3D and 4D high-end surveys

Responsible exploration of new frontiers is made possible with the latest maritime advances. Christian Fenwick reports

'Coil shooting' method improves imaging of complex geology

'Coil shooting' is a new single-vessel method for acquiring seismic data over a wide range of azimuths to improve imaging of complex geology. Jeremy Cresswell reports.

AUV supports environmental monitoring, wide area surveys

Carl-Marcus Remén reports on a new generation of autonomous underwater vehicles in the international oil and gas market.

Hybrid robot vehicle undertakes record-breaking dive

There is an underwater vehicle flavour to Jeremy Cresswell's look at what's fresh on the hydrographic front, notably a new type of hybrid robot vehicle for deepsea survey and a semi-submersible vehicle designed to replace small survey monohulls

New multibeam echo sounder launched

Acoustic time delay beamforming techniques to deliver high quality survey data, says Tritech

Mud density measurement saves dredging costs

Heavy-duty device is made from 316 stainless steel using all-welded construction, and is robust enough to withstand being towed through marine sediments

Accelerating 3D seismic data analysis on desktop workstations

A new range of graphical processors can bring server cluster performance onto the desktop for under $10000. Keith Forward reports

Submersible hydrostatic level transmitters for depths of 200m

New from Impress Sensors and Systems is the SDI-12L range of submersible level transmitters that are manufactured from stainless steel or marine-bronze

Integrating wide swath sonar with the portable AUV

Project to collect high resolution, high accuracy co-registered bathymetry and side scan survey data

Underwater thickness gauge is IPX8 rated

Rugged underwater thickness gauges for divers carrying out maintenance inspections and corrosion checks

768 fibre optic sub-sea riser cable sets new world record

Einar Magnus Bjelland and Jon-Steinar Andreassen look at the scope of work for the 768 fibre riser cable, including the arrangements for the pull-in operation

New 'smart thinking' remotely operated vehicle rated to 3000m

Two innovative remotely operated vehicles were launched by Saab SeaEye at Offshore Europe

NOAA Office of Coast Survey buys AUV

The Iver vehicle enables NOAA to evaluate the expanding role of small, lightweight AUVs for near coastal studies

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