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Methane fluxes and gas hydrates as well as seismic activity in the okhotsk sea

Global Geology 2006年第2期9卷 161-163页

作者： Anatoly Obzhirov V.I.Il'ichev Pacific Oceanological Institute FEB RAS Vladivostok 690041Russia

The research works of methane concentration in water column of the okhotsk sea from 1984 to 2005 were *** some regularities of methane distribution in water column in the North-East Sakhalin slope of the okhotsk sea w... 详细信息

关键词： methane fluxes gas hydrate okhotsk sea

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Formation and transport of intermediate water masses in a model of the Pacific Ocean

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Acta Oceanologica Sinica 2014年第5期33卷 8-16页

作者： LI Yangchun XU Yongfu State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry Institute of Atmospheric Physics Chinese Academy of Sciences

A basin-wide ocean general circulation model of the Pacific Ocean was used to investigate how the interior restoration in the okhotsk sea and the isopycnal diffusion affect the circulation and intermediate water masses. Four numerical experiments were conducted, including a run with the same isopycnal and thickness diffusivity of 1.0×10^3 m2/s, a run employing the interior restoration of temperature and salinity in the okhotsk sea with a time scale of 3 months, a run that is the same as the first run except for the enhanced isopycnal mixing, and a final run with the combination of the restoration in the okhotsk sea and large isopycnal diffusivity. Simulated results show that the intermediate water masses reproduced in the first run are relatively weak. An increase in isopycnal diffusivity can improve the simulation of both Antarctic and North Pacific intermediate waters, mainly increasing the transport in the interior ocean, but inhibiting the outflow from the okhotsk sea. The interior restoration generates the reverse current from the observation in the okhotsk sea, whereas the simulation of the temperature and salinity is improved in the high latitude region of the Northern Hemisphere because of the reasonable source of the North Pacific Intermediate Water. A comparison of vertical profiles of temperature and salinity along 50°N between the simulation and observations demonstrates that the vertical mixing in the source region of intermediate water masses is very important.

关键词： intermediate water mass okhotsk sea isopycnal diffusivity interior restoration

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