Saturday, October 22, 2016

Hydrographic Sonar News

Autonomous Boat Monitors Ocean Noise: Plymouth University Marine Institute scientists are working with AutoNaut and its nearly silent 5m wave-propelled USV, which tows a Seiche Ltd passive acoustic monitoring array, on a project studying how increasing levels of manmade noise in the sea is affecting marine life. (Photo: AutoNaut)

Silence Your Ships

Anthropogenic (manmade) sound is creating havoc among marine mammals and other aquatic species. These creatures have very sensitive hearing, which they rely on to find food and mates and (for some) to communicate and navigate. Sound waves can travel much further and with much less loss of strength in water than in air. In pre-industrial times, the oceans were relatively quiet. Sailing ships generated almost no subsurface noise. A whale’s call could be heard by another whale hundreds of miles away in ambient conditions. The substantial and growing amount and volume of anthropogenic noise in the

Teledyne RESON T50-R Ultrahigh resolution Multibeam Echosounder with fully integrated Inertial Navigation System (Image: Seafloor Systems)

Seafloor Systems Inks Distribution Deal with Teledyne

offices, and to the U.S. Army Corp of Engineers Portland, New Orleans, Philadelphia and Atlantic City Districts.    “We anticipate that Seafloor’s further expansion into BlueView’s product line will provide us the tools to serve a wider range of customers within the hydrographic community,” said John Tamplin, President, Seafloor Systems. Teledyne BlueView’s products are employed for a variety of applications, including underwater navigation, monitoring, tracking and inspection applications for the energy, transportation, civil engineering, search and recovery

RV Meen Shandhani (Photo: Photos: IMC/Bangladesh Department of Fisheries)

FRV for Bangladesh

design manufactured in Malaysia by Jaya Nets, while the otter boards are from BMI in Korea. Forward of the trawl winches, beneath the shelterdeck, there is a stainless steel/aluminum semi-contact plate freezer to port, while IMC designed an alcove into the starboard side. The alcove enables specialist hydrographic tools such as conductivity, temperature and depth (CTD) packages and water sampling equipment to be safely deployed and retrieved, with lifting accomplished by a dedicated A-frame and hydraulic winch combination located on the deck above.   The equipment can be transferred into the

Petty Officer 2nd Class Tammy Helm from the Naval Oceanography Operations Command programs a REMUS 100 unmanned underwater vehicle prior to a mission as part of the first-ever Unmanned Warrior. (U.S. Navy photo by John F. Williams)

Unmanned Warrior: The Science behind the Systems

Security System successfully conducted counter-unmanned underwater vehicles and diver port security operations using advanced algorithms and sensors. Next-generation LIDAR (light detection and ranging) was successfully employed from an unmanned aerial vehicle to conduct autonomous hyperspectral hydrographic reconnaissance. Maritime surface targets were detected and tracked from an unmanned aerial vehicle utilizing the Airborne Computer Vision system, which processes and discriminates contacts automatically for further investigation by operators. Not only does that get scientists and engineers

Rapaport Returns to OceanWise

to its Customer Service Team as a Business Administration Apprentice, as well as its second GEBCO sponsored intern, Azmi Rosedee from the University of New Hampshire. Rosedee will help update the company’s digital bathymetric database before returning to Malaysia as the new Data Manager in the Hydrographic Office of the Malaysian Navy.   Furthermore, the company’s first apprentice, George Wright, has commenced his BSc degree course in Digital Technology Solutions at the University of Winchester, and will continue to work on technical projects at OceanWise while attending classes

Marine Technology Magazine Cover Oct 2016 - AUV Operations

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