17 Sep '12, 4pm

We've anchored the pivot of our #NASAspurs ocean sampling 'sensor web' 17k ft below the Atlantic.

We've anchored the pivot of our #NASAspurs ocean sampling 'sensor web' 17k ft below the Atlantic.

It’s a process of many hours to deploy the mooring. The ship will position itself some miles from the proposed anchoring site (depending on wind and currents) and start steaming toward the spot very slowly. The length of mooring and gear are then deployed over the stern starting with the top of the mooring, the surface buoy. After that various current meters, salinity and temperature sensors are attached in turn with various lengths of chain and shackles. As they are joined, they are in turn lowered over the stern and the surface buoy begins to distance itself in the ship’s wake. About 8 hours after the start of the deployment, the 16,000 feet of mooring is laid out on the surface behind the ship, and all that’s left on deck is the anchor.

Full article: http://earthobservatory.nasa.gov/blogs/fromthefield/2012/...

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