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hydrates

Jul 3, 2014

Secret Lives of Submarine Gas Flares

We know that methane gas bubbles from the seafloor near our Clayoquot Slope study site (depth: 1250 m). But what is the variability of this venting, does it change over time, and what causes flares of methane bubbles to start, stop or shift locations? Where is the bubbling most continuous and where is it most unpredictable? These are questions visiting scientist Dr. Miriam Römer has been trying to answer. Römer, a research scientist with the MARUM Centre for Marine Environmental Sciences at the University of Bremen, spent the past 3 months working with Ocean Networks Canada staff scientists analyzing a large and disparate collection of data from Clayoquot Slope.

...
Read more

clayoquot slope | gas hydrates | gas flares | methane | hydrates | germany | Collaboration | visiting scientist | bubbles | gas plume

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Sep 11, 2018

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Jul 4, 2018

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May 8, 2018

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May 8, 2018

May 28, 2013

Gas Plume Detected

Ocean Networks Canada’s first summer expedition aboard the CCGS John P. Tully returned to port with confirmation of a major discovery: an impressive plume of gas rising from the seafloor off Vancouver Island in a region monitored by the NEPTUNE observatory that has been discharging since at least 2010.

Multibeam sonar profile of the methane plume.

During the final leg of the month-long expedition in the Northeast Pacific Ocean, the vessel conducted sonar...

Read more

methane | gas hydrates | hydrates | bubbles | sonar | ccgs | expedition | greenhouse gases

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Oct 15, 2012

Wally the Benthic Crawler

Deployed at a cold seep in the Barkley Canyon gas hydrate field, Wally the Benthic Crawler is equipped with sensors that measure temperature, pressure, water currents, salinity, methane, and turbidity. Wally’s webcam provides researchers with a detailed view of the seafloor sediments and local marine life. At a depth of 870 m, Wally is connected to the Barkley hydrates platform by a 70 m long cable and navigates a series of numbered way markers arranged along a seafloor tour route known as “Wally Land.”

...

Read more

wally | crawler | jacobs university | germany | bremen | methane | hydrates | gas hydrates | methane hydrates | sediment microprofiler | barkley

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May 8, 2018

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Jul 18, 2017

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Oct 2, 2012

New Eyes For Wally

For the past two years, 2 benthic crawlers, Wally I and Wally II have served alternating stints helping scientists at Jacobs University in Bremen, Germany explore and study the uniquely dynamic environment of the gas hydrate outcrops in Barkley Canyon.

Each time we swap out one Wally from the seafloor, the other Wally takes its place on the seafloor. With each replacement we have seen improvements in the replacement crawler's instrumentation and capabilities. The currently deployed Wally I is no exception.

...

Read more

wally | camera | video | hydrates | barkley canyon

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Sep 21, 2011

Free Wally Keeps on Ticking

Wally the Crawler underwent the ultimate stress test on Sunday. After entering the water tethered beneath the Remotely Operated Vehicle ROPOS, strong waves apparently sprung Wally loose. He took an 870 m free dive from the sea surface to the seafloor at Barkley Hydrates.

Wally dangling over the water

Wally the Crawler dangles below ROPOS just prior to entering the ocean at Barkley Hydrates, 18 September 2011.

Shortly after entering the water, we checked for Wally in the downward-looking camera, and he was gone. As the dive logger described it, “The hook came off, Wally is by himself.” Onlookers both on ship...

Read more

wally | crawler | hydrates | gas hydrates | methane hydrates | Barkley Hydrates | deep-sea crawler | ROPOS | bremen | jacobs university

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