渤黄东海潮能通量与潮能耗散

Tidal Energy Fluxes and Dissipation in the Bohai Sea, the Yellow Sea and the East China Sea

利用同化高度计资料和沿岸验潮站资料对潮汐数值模式进行同化,根据同化后的数值模式结果,对渤黄东海中的潮能通量和潮能耗散进行了研究。M2分潮从太平洋进入渤黄东海的潮能为122.499GW,占4个主要分潮进入总量的79%。黄海是半日分潮潮能耗散的主要海区。全日分潮则主要耗散在东海。全日分潮在遇到陆坡的阻挡以后有一部分潮能沿着冲绳海槽向西南传播,并有一部分潮能反射回太平洋,其中O1分潮通过C3断面反射回太平洋的潮能,约占其传入东海潮能的44%。

The tidal energy fluxes and dissipation of the major tidal constituents（M2, S2, K1 and O1） over the Bohai Sea, the Yellow Sea and the East China Sea are examined in detail, using the results of a numerical model, which assimilates the gauges and altimeter data. The M2 tidal energy is 122. 499GW from the Pacific Ocean into the East China Sea, which accounts for 79% of the total of the four major constituents. Most of the tidal energy of the semidiurnal constituents is dissipated in the Yellow Sea, while for the diurnal constituents most tidal energy is dissipated in the East China Sea. A part of the diurnal tidal energy from the Pacific Ocean （through the Tokara Strait） to the East China Sea refluxes to the Pacific Ocean when it meets the continental slope, with 44% of O1 tidal energy refluxing into the Pacific Ocean.