Methane fluxes on the water-atmosphere boundary in the Sea of Okhotsk

摘要

High variability in methane fluxes at the water-atmosphere boundary was found for the first time for the period 1990-2016 using expeditionary data. Variability from absorption to emission with values of more than 5 kg km(-2) day(-1) was found in the whole sea area and over time. Increased emission in the Sea of Okhotsk is associated with distribution areas of through and composite anomalous gas-geochemical gas fields migrating from lithospheric sources. The interannual methane discharge into the atmosphere has an oscillatory seismic dependent nature.