Distribution of methane content and methane fluxes in the Sea of Japan,Sea of Okhotsk,and near-Kuril Pacific |
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| Authors: | A I Obzhirov N L Pestrikova G I Mishukova V F Mishukov A K Okulov |
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| Institution: | 1.Il’ichev Pacific Oceanological Institute, Far Eastern Branch,Russian Academy of Sciences,Vladivostok,Russia |
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| Abstract: | The spatial distribution of methane content and methane fluxes in the water in the north-western part of the Sea of Japan, in the Kuril basin of the Sea of Okhotsk, and in the near-Kuril part of the Pacific Ocean is studied using the data of marine research expeditions in 2005, 2010, and 2011. The studies revealed the significant variability of the methane flux depending on the source presence and on the sea surface conditions. The high emission of methane from water to the atmosphere is registered in the areas where its concentration exceeds the equilibrium values with the atmosphere. The use of the model of computation of the fields of currents and contaminant transport for the investigated water area enabled explaining the formation of the high concentration of methane in the center of vortices in the zones of sea water convergence in the water areas under study. |
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