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Fishing has the highest rate of occupational fatalities in the USA, per the Bureau of Labor Statistics, and Alaska's waters are the deadliest, per Coast Guard statistics [1]. Many fishing fatalities stem from small boats, 44 feet in length or less. Small boats can sink or tip for many reasons including bad weather, rough seas, mechanical problems and poor maintenance. Some operators will cut corners...
We live in an ever-changing environment where there is a vital need for persistent monitoring of human activities; whether it is for security, safety, economic or environmental purposes. Our oceans are no exception and may even be the region of our globe that is most at risk. Unbeknownst to many, there is limited visibility and awareness of maritime activity beyond 40-50 nautical miles from our coastline...
Satellite Automatic Identification System (AIS) technology has fundamentally changed the landscape for monitoring the maritime domain. Improving upon existing AIS technology already deployed aboard all large vessels and many smaller vessels around the globe, satellite AIS is truly revolutionary in providing a complete and global picture of the world's maritime shipping environment. To date, the exactView™...
This paper discusses the steps key to successful installation of complex seafloor communication, power and sensor networks. Emphasis on a systems engineering approach to design, development and deployment requiring the coordination of a diverse team of optical fiber specialists, marine cable engineers, technicians, deck hands, riggers, ROV operators, ship's crew and officers is essential to safely...
Providing power to the seafloor to operate sensors and equipment reliably for long-term use requires a well thought out power return system as there are numerous obstacles in the harsh undersea environment. Cabled observatories typically employ commercial-off-the-shelf (COTS) telecommunications cables that contain optical fibers and a single power conductor, where the return path utilizes a seawater...
Obtaining satisfactory visibility of undersea objects has been historically difficult due to the absorptive and scattering properties of seawater. Mitigating these effects has been a long term research focus, but recent advancements in hardware, software, and algorithmic methods have led to noticeable improvement in system operational range. This paper is intended to provide a summary of recently...
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