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
CSI Salish Sea
Ocean Networks Canada
Published: 27 April 2013
Marine forensics studies using pig carcasses on the VENUS observatory show that decomposition depends heavily on oxygen levels. Rapid scavenging occurs in oxygen-rich areas, while low-oxygen delays decay for months. Research informs forensic timelines.
Keywords: Forensic entomology, Saanich Inlet, Strait of Georgia, decomposition, scavenging, oxygen levels, VENUS observatory, underwater carcass study
