Folger Pinnacle Frontiers
Ocean Networks Canada
Published: 22 August 2011
Severe biofouling at Folger Pinnacle impaired ONC's underwater instruments, drastically reducing data quality. After intensive diver-led cleaning and maintenance, sensor performance was restored—highlighting the need for regular upkeep at shallow reef sites.
Keywords: Folger Pinnacle, biofouling, underwater sensors, marine data recovery, Ocean Networks Canada
Using Sound to Visualize Currents
Ocean Networks Canada
Published: 3 February 2012
ADCPs from Nortek and RDI use sound beams to measure 3D ocean currents by analyzing Doppler shifts from particles in the water. Installed across Ocean Networks Canada's sites, these sensors aid in studying deep-sea currents, marine life, and ecosystem changes.
Keywords: Acoustic Doppler Current Profiler (ADCP), Nortek, RDI, current velocity, Doppler shift, marine ecosystem, NEPTUNE Observatory
Hydrate Growth at Bullseye Vent?
Ocean Networks Canada
Published: 9 December 2011
Researchers use seafloor compliance to study gas hydrate changes at Clayoquot Slope. A 2.88% decrease in compliance suggests a 3× increase in hydrate concentration from 22% to 64% over 228 days—equivalent to 600 million kg of hydrate mass change
Keywords: Gas hydrates, Barkley Canyon, seafloor compliance, hydrate stiffness, Clayoquot Slope, NEPTUNE, sediment dynamics
