A: Location of survey area west of Svalbard; bathymetry (Jakobsson et al. 2008). B: Positions of acoustically imaged plumes are depicted by “pins” superimposed on a perspective view of the bathymetry of part of the area of plume occurrence. The 396-metre isobath contour is the expected landward limit of the GHSZ. C: Part of the record from an acoustic survey showing examples of observed plumes. All plumes show a deflection towards the north caused by the West Svalbard Current. The sea floor, at around 240-metre depth, is shown by the strong (red) response.

Year: 2009

From collection: Frozen Heat - A Global Outlook on Methane Gas Hydrates

Cartographer: GRID-Arendal