Category Archives: Hydro/Marine

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Finding Fish Hotspots

Marine scientists bring multiple technologies together to locate reef fish aggregations, working towards healthy reefs and island economies. The livelihoods of tropical island communities depend on the vitality of reef fishes, either directly through recreational and commercial fishing or indirectly through healthy coral reef ecosystems that support eco-tourism. Yet, over the last several decades, the...

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Hydrography

Above: Corporate social responsibility helps to ensure safety of the environment at a complex interactive drilling operation. Timely Delivery of Data and Products, Marine Spatial Planning, Increased Trusted Partner Resources Here’s a frameworkfor hydrography’s future. Start with the vision of a survey fleet, assisted by unmanned platforms, permanent seafloor installations, remote sensing, and trusted partner...

Bluestone Dam is a concrete gravity dam located just upstream of the confluence of the New and Greenbrier Rivers near Hinton, West Virginia.

Capturing the Bluestone Dam

Above: Bluestone Dam is a concrete gravity dam located just upstream of the confluence of the New and Greenbrier Rivers near Hinton, West Virginia.   Editor’s note: Because the Bluestone Dam is critical infrastructure, the Corps cannot display images of its insides. In fact, security is one of the key reasons it didn’t contract out the...

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Survey. Dredge. Repeat: Keeping the Columbia River Navigable

As the skipper of Galileo 3, a 30-foot sailboat on the Columbia River, I tell my crew that I am comfortable with 15 feet of water under the keel, get nervous when it drops below 10 feet, and take immediate action if it drops below 6 feet. That’s because I cannot constantly monitor my chart...

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ROPOS: ROV Cool

I recently accompanied a film crew working on a documentary on maritime technologies to the NOAA facility in Newport, Oregon to catch a glimpse of what is widely celebrated as the “coolest ROV in the world.” The Remotely Operated Platform for Ocean Sciences (ROPOS) is the flagship research ROV of the Canadian Scientific Submersible Facility...

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What is xyHt?

Stand in the place where you live Now face North Think about direction Wonder why you haven’t before “Stand” – R.E.M. Why an obscure geodetic expression? It’s not all that obscure—it represents a foundational element requisite to nearly all human endeavor. It touches your life explicitly and in the abstract. All of the ways that...