Applications for RDI's H-ADCP include: in rivers where it monitors discharge rates and obtains horizontal profiles of flow; in ports and harbors where a pier-mounted instrument monitors shipping channels to aid navigation and safety; in estuaries for defining complex circulation patterns and lateral mixing; and on exploration rigs, seismic vessels and in hydro-electric and tidal power plants. RDI's H-ADCP uses patented Broadband signal processing to obtain the best combination of range, resolution and data quality compared with narrowband solutions. It measures water velocities up to five meters per second at as many as 128 individual points, centered at one depth. H-ADCP is self-contained and can be supplied with a system integration and telemetry module for relaying real-time information from remote sites.

Real-time data from RDI's H-ADCP can be viewed at the Danish Hydraulics Institute website. Click here for description of the project goals. There are over 2500 RDI acoustic Doppler current profiling systems working in 50 nations worldwide to support offshore oil and gas exploration and development, hydrographic surveys, environmental studies and marine civil engineering activities. Visit the RD Instruments web site.

According to the US Navy Diving Manual, (8-25), "the Dive supervisor has the prime responsibility of administering decompression in the absence of qualified medical personnel, should any reasonable doubt as to the cause of the symptoms exist." Upon delivery of the chamber, Nautilus will train the owner and his key people in the operation, maintenance, and chamber training in accordance with the U.S. Navy Diving Manual. E-mail Dr. Jonathan Newman or click here for the full press release, .

W.S. Ocean Systems UK also recently appointed distributors in Europe and the Far East. MacArtney A/S, Denmark, covers Belgium, Holland, Denmark, Finland, Norway and Sweden. Seismic Asia Pacific Pty Ltd, Beijing, will be distributor in the People's Republic of China. Both organisations will provide sales and technical support for the full range of WS Ocean Systems products, including the best-selling NAS-2E in-situ nutrient analyser, the "smart" Aqua Monitor water sampler and the ESM series which is revolutionising marine environmental data logging. For more information and complete press releases, e-mail: Jeanne Dorsey at WS EnviroTech Inc., Virginia, USA or Mark Rawlinson, at info@wsocean.com, W.S. Ocean Systems UK or on the web at http://www.wsocean.com

Maridan's AUV survey operations in the Gulf of Mexico. Maridan's US survey activities will be undertaken by their latest M600 AUV series and will include tasks such as hazard surveys prior to exploration drilling, as-built and post-lay surveys, pipeline route surveys and pipeline inspection surveys. The Danish M600 AUV, has already been subject to a great deal of interest from the local survey community. According to Maridan's Director of Survey, Alastair MacDonald, discussions are in hand on specific pipeline route surveys and hazard surveys to be undertaken during the next few months. Maridan sees great potential in the offshore survey market due to its leading AUV technology that delivers extremely cost-effective survey operations, faster and with higher quality of data than conventional technologies.

"The focus of the oil and gas companies based in Houston is on prospects for major offshore exploration and developments in the Gulf. The water depths, marine environment and fast track requirement of these prospects represent exciting new challenges that Maridan is looking forward to meet," Alastair MacDonald concludes. For more information, contact Maridan USA at pho@maridan-usa.com or via the web at http://www.maridan-usa.com

Supporting events include a series of workshops convened by the UK Hydrographic Office, Trimble Navigation and the Joint Airborne Lidar Bathymetry Centre of Technical Expertise (JALBTCX), a collaborative venture involving Australian, Swedish and US concerns. There will also be a major exhibition of equipment and services involving over 50 leading companies and organisations. Commercial sponsors of materials and various social events (which include a golf competition and an evening visit to Norwich City Football Club) are GeoAcoustics, Kongsberg Simrad, Norcom Technology, Seatronics and Thales Navigation (formerly DSNP). Registration details available via e-mail at hydro2001@haleys.globalnet.co.uk or via the web http://www.hydrographicsociety.org

One Tiger system and the Surveyor Plus will be configured for free swimming operations, whilst the second 1000 metre Tiger will be equipped with a 200 metre excursion TMS, gravity based LARS skid and full zone II DNV classification making this the most highly specified Tiger system yet produced by Seaeye Marine. 'Before making our decision to buy Seaeye ROVs we carried out a detailed evaluation of the various alternatives available on the market today. This included discussions with existing Seaeye operators, our potential customers and pilots who have flown the options that were available to us,' said Chris Kemp, Managing Director of Subco. 'We chose Seaeye's on the basis of their market leading performance and reliability and their long track record of successful operation'.

All Seaeye ROVs feature brushless DC thrusters, which, apart from having the greatest power density, have integrated drive electronics with velocity feedback for precise and rapid thrust control. These thrusters are interfaced to a fast PID control system along with a solid-state rate gyro for enhanced azimuth stability. These essential building blocks enable Seaeye Marine to provide superior control and response from their powerful ROVs, setting them apart from the competition. Visit http://www.seaeye.com for details.

Tracking And Managing Vessels Using GPS And HYDROpro
On larger marine construction projects like land reclamation or during oil rig moves where multiple vessels are used it can be a difficult job tracking and directing them all. The questions often asked are 'where are the vessels and where are they heading?' followed by the action 'we want to send vessel A to point B'. Some basic principles and components are explained as well as two actual installations. Click here for more details.

Trimble Releases The 5700 Receiver
The GPS Total Station 5700 is the most advanced and versatile survey instrument we've ever built. A modular system that's just as comfortable bringing in first-order control points as it is collecting real-time kinematic data on your vessel. With our new extended RTK (eRTK) technology one base station can serve an area 4 times larger than conventional RTK. For wider reach you can link multiple base stations on the same radio frequency. Click here for more details