1　引言人们对黄海的潮汐锋现象已有一些报道和研究[1～ 4] ,但对渤海的潮汐锋现象却没有进行过认真的分析和讨论 ,迄今只有赵保仁[1] 在讨论黄海的潮汐锋时 ,指出过渤海海峡的潮汐锋现象 ;而黄大吉等[5 ] 在数值计算渤海的温度变化时也指出在渤海内部存在着潮汐锋现象 ,但却没 1 Introduction There have been some reports and studies on the tide front phenomenon in the Yellow Sea [1 ~ 4]. However, there has been no careful analysis and discussion of the tide front phenomenon in the Bohai Sea. So far, only Zhao Baoren [1] , Pointed out that the tide front of the Bohai Strait phenomenon; and Huang Daji et al [5] in the numerical calculation of the temperature changes in the Bohai Sea also pointed out that there is a tidal front in the Bohai Sea phenomenon, but not