Abstract
Satellite data on tropospheric methane and dynamical permafrost model simulations were used to analyze the methane emission in the subaquatic permafrost on the East Siberian Arctic shelf. The hypothesis of potential methane release from the dissociation of submarine gas hydrates was studied. It was demonstrated that the methane emission on the Arctic shelf is governed mainly by geological factors and is not related to contemporary climate change. Numerical experiments with the INM-CM48 Earth system model showed that there is no feedback between the methane emission on the shelf and global air temperature. A conceptual model of methane emission on the East Siberian Arctic shelf was developed.
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