Methane Plumes
By Woods Hole Coastal and Marine Science Center
2017 (approx.)
Detailed Description
(Top) Methane plumes at the Norfolk Canyon seeps (~1600 meters or 5250 feet) were detected using the EK60 sonar. The water column plumes are shown above the sub-seafloor structure as imaged by high-resolution multichannel seismic data acquired by the USGS and processed by J. Kluesner. (Bottom) Close-up view showing that the bubbles in the largest methane plume is detectable more than 900 meters (2950 feet) above the seafloor.
Sources/Usage
Public Domain.
Related
IMMeRSS-- Geophysical Imaging for Methane Seep Studies
Geophysical imaging relies on specialized tools to detect anomalies in the water column or to map features on or beneath the seafloor. Equipment may be towed, mounted on the side of a ship, or attached to the ship’s hull. Many geophysical techniques rely on transmitting an acoustic signal of a particular frequency and analyzing the information in the returning signal to infer the properties of the...
Related
IMMeRSS-- Geophysical Imaging for Methane Seep Studies
Geophysical imaging relies on specialized tools to detect anomalies in the water column or to map features on or beneath the seafloor. Equipment may be towed, mounted on the side of a ship, or attached to the ship’s hull. Many geophysical techniques rely on transmitting an acoustic signal of a particular frequency and analyzing the information in the returning signal to infer the properties of the...