关于黄河口M_2无潮点的研究,曾引起国内外许多学者的关注。小仓伸吉(1936)根据实测潮位资料,通过计算分析,首先论断它的存在,推断它的位置。半个世纪以来,又有不少学者计算其位置,但都偏重于理论的分析或数值计算结果(见表1和图1)。侍茂崇、赵进平(1985)指出,五号桩海区存在一条无潮带,不是一个无潮点,其位置在B断面附近(见图2)。 On the M 2 no-tide point of the Yellow River estuary, has attracted the attention of many scholars at home and abroad. Ogura extension Kyrgyzstan (1936) tide based on measured data, through computational analysis, the first to judge its existence, infer its location. For half a century, many scholars have also calculated their positions, but they all emphasize the theoretical analysis or numerical calculation (see Table 1 and Figure 1). Shimao Chong and Zhao Jinping (1985) pointed out that there is a non-tidal zone in the No. 5 pile area, not a non-tidal point, which is located near the section B (see Figure 2).