Pelagic

Jun 21, 2015

A two-ship expedition at Barkley Canyon

Updated July 2, 2015

On 11 January 2015, the link with Ocean Networks Canada’s Barkley Canyon node was lost, halting all data delivery from this site in the Northeast Pacific. Further investigation revealed that a fishing trawling gear had damaged the node and cut off communications to all sensors connected to the Barkley Canyon node.

BarkleyCanyonJn2015

Fig.1 –Barkley node (orange square) is the power and communications hub for ONC’s Barkley Canyon observatory site.

For locations like Barkley Canyon where active fishing occurs,...

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barkley canyon | Barkley node repair | Pelagic | Wave Venture | Dorado Discovery

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Folger Pinnacle Maintenance Mission Complete

On Wednesday, 23 October 2013, Folger Pinnacle platform received its last maintenance and clean-up service for the year; the right in time before the November storms will be surging across the coast again. The experienced divers from Pelagic Technologies and the Bamfield Marine Sciences Centre swapped the Folger ReefCam (also known as Outreach camera) for an overhauled and nicely cleaned one, installed several test instruments (development of the Ocean Networks Canada Innovation team) and, finally, thoroughly cleaned all instruments hosted on the Folger Platform. 

Stunning improvements in the data quality were observed in the 3D Camera Array (see picture), and also the current-meters provide now more...

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folger pinnacle | camera | BMSC | Bamfield | Pelagic | ReefCam | 3D camera array

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Folger Pinnacle Re-installed

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folger passage | folger pinnacle | NEPTUNE | maintenance | installation | Pelagic | Bamfield | Ocean Dynmics Canada | grasshopper

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Folger Pinnacle Frontiers

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The Folger Pinnacle instrument platform was installed on August 23, 2010 and connected on February 2, 2011 by a combined team of Pelagic Technologies divers, the Bamfield Marine Sciences Centre (BMSC), and Ocean Networks Canada. Since then, a wealth of data has been gathered by instruments affixed to this 23m deep platform. However, in recent months, Dilumie Abeysirigunawardena, one of our data specialists, noticed a drop in the instruments’ data quality and sensitivity. Some stopped working altogether, while signals from others have gradually diminished. (See, for example, the drop-off in irradiance from our light sensor below – you’d normally expect June to be brighter than February!)

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folger passage | folger pinnacle | Repair | scuba | camera | video camera | adcp | biofouling | Folger Deep | installation | Pelagic | divers | Fish | barnacles | zinc oxide

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Folger Pinnacle Connected

Our Folger Pinnacle instrument platform is now up and running after a team of divers plugged in the extension cable connecting it to Folger Passage node and the rest of the NEPTUNE Observatory last week. Glenn Hafey of Pelagic Technologies made the actual connection after he and his 4-man team dove 23m to the platform from the Bamfield Marine Science Centre’s 9.8m aluminum dive support boat, the Barkley Star.

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