无潮点

其中最主要的特征是空间上相间配置的无潮点和圆流点。

The main characteristic is alternate disposition of elevation amphidromic point and current amphidromic point in the space domain .

黄河口M2无潮点及潮汐特征分析

Analysis of amphidromic point m_2 and the tidal characteristics at Huanghe River mouth

M2分潮在秦皇岛以外海域和老黄河口附近各有一个无潮点；其分潮流在沿岸海域及狭窄水道以往复流为主，而在渤海中部，旋转流是其基本运动形式。

There are two amphidromic points for M2 constituent : one near Qinhuangdao , another close to old Yellow River mouth ; rectilinear currents dominate in narrow sea-routes and coastal areas , whereas rotation is the basic moving style in the central BS .

计算显示，在朝鲜半岛东南方的全日潮无潮点位置比历史同潮图上的位置更靠近朝鲜海岸。

The computed diurnal tide-amphidromic point to the southeast of the Korean Peninsula is located closer to the Korea coast than that plotted in the historical cotidal charts .

其结论是：（1）对无潮点相对于矩形海域中轴线的偏移来说，摩擦的影响和海底地形的影响可能都是重要的。

It is concluded that ( 1 ) for the shift of amphidromic points with respect to the central axes of rectangular waters , the effects of both friction and bottom topography are important .

在国内，首次给出了鄂霍次克海内的3个半日分潮旋转潮波系统，验证了宗谷海峡和津轻海峡的两个全日潮无潮点的存在。

Three semidiurnal tidal amphidromic points in the Okhotsk Sea have been found for the first time , and two diurnal tidal amphidromic points have been verified to exist in the Soya Strait and the Tsugaru Strait .