Sea Technology

NOV 2013

The industry's recognized authority for design, engineering and application of equipment and services in the global ocean community

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environmentalmonitoring Sensors, Glider Monitor US West Coast Waters In early August off the U.S. East Coast, a team from Sonardyne International Ltd. (Yateley, England), Liquid Robotics Inc. (Sunnyvale, California) and NOAA concluded the second leg of an extensive ocean observation technology demonstration project. Using Sonardyne's Fetch and Tsunami sensor nodes and a Liquid Robotics Wave Glider, the project was performed in collaboration with MARACOOS (MidAtlantic Regional Association Coastal Ocean Observing System) and NOAA's National Data Buoy Center (NDBC) and managed by NOAA's U.S. Integrated Ocean Observing System (IOOS) Program Offce with the objective of testing new long-endurance ocean observation instruments that have been designed to work in tandem. The Fetch node was deployed in 550 feet of water to measure ocean temperature and pressure, and the Tsunami sensor in 8,000 feet, while the Wave Glider recorded data on the wind, waves, water temperature and salinity as it transited between the two sensors. Once the Wave Glider was stationed above the location of each instrument, it acoustically uploaded both real-time and logged data, which were then transmitted via satellite to shore-based operators for analysis. Sonardyne's Fetch and Tsunami sensors are long-life subsea sensor logging nodes that enable data to be extracted on demand from platforms such as Wave Glider via their integrated highspeed acoustic modems. Fetch can be confgured with an array of different sensors dependent on the monitoring application with standard sensors, including high-accuracy pressure, temperature and sound velocity. The Wave Glider is an autonomous ocean observing platform designed to support a wide variety of sensor payloads. Capable of travelling long distances and monitoring vast areas without refueling, Wave Gliders can transmit data via radio satellite without ever requiring a ship to leave port, thereby re- ducing risk and survey costs. The data will help improve understanding and prediction of what is happening in the ocean and could improve the ability to predict and detect incoming tsunamis. For example, the tsunami sensor captured the small seismic event that occurred off the East Coast on June 13. The technology enabled uploading of the data and transmission to investigating scientists. Warming of Greenland Deep Sea 10 Times Higher Than Global Rate Recent warming of the Greenland Sea deep water is about 10 times higher than warming rates estimated for the global ocean, according to scientists from the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) who published their fndings in Geophysical Research Letters. They analyzed temperature data from 1950 to 2010 in the abyssal Greenland Sea, south of the Arctic Ocean. The cause of the warming is a change in the subtle interplay of two processes in the Greenland Sea: the cooling by deep convection of very cold surface waters in winter and the WATCHING OUT FOR YOU - NAVAL CCTV SYSTEMS When ordinary CCTV and video solutions are not enough it is reassuring to know you have access to the best vision systems developed for both surface vessels and submarines. Kongsberg Maritime is working towards continuous improvement of video aids and CCTV systems to assist operational efficiency, safety and security in the harshest and most demanding maritime environments. Multi-drop, low-light capable integrated CCTV surveillance systems for: Flight/Heli deck Well deck Hangar bay Engine room Waterline security Full MIL-SPEC low light surveillance CCTV systems Rugged MOTS-based ship surveillance systems Digital Power over Ethernet (PoE) naval camera systems Kongsberg Maritime provides highly robust ships CCTV and video systems to many Navies, Special Forces and Security Specialists around the globe. These systems cover both fleet fit and special applications and are typically used for day & night surveillance, monitoring, navigation and tactical purposes and meet stringent military level shock, vibration, EMI, temperature and humidity specifications. Telephone: +44 1224 226500 62 st / November 2013

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