Left: Changes in the thickness of the GHSZ caused by the bottom-water temperature increase depicted in Figure 3.5. Above left: Volumetric GHSZ thickness changes north of 60°N as a function of time, given in absolute numbers (left axis) and as percentage of the steady-state solution, neglecting the transient heat intrusion into the sediment (right axis). Above right: Phase diagram of methane-gas hydrates as a function of pressure and temperature (constant salinity of S = 35 p.s.u.). Orange symbols mark the current bottom-water temperatures along the European Nordic Sea (circles) and Russian slope along the Laptev and East Siberian Seas (squares), black symbols mark the predicted bottom-water temperatures in 100 years. Vertical bars indicate the vertical resolution of the ocean model.
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From collection: Frozen Heat - A Global Outlook on Methane Gas Hydrates