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本调查海域位于深浅急剧变化的大陆架边缘区域,海水流动相当复杂,既有半日和周日变化的潮流,又有变化周期较长的所谓常流;既有西北太平洋强大的黑潮流经这里,又有受到长江等大河入海径流涵养的沿岸流在此汇合。在浅水的大陆架水域,一般潮流较常流明显,有的区域潮流比常流大一个量级,而深水的东海海盆,潮流相对于常流又显得不甚重要,尤其在黑潮流经的区域,潮流几乎可以忽略。就海水的输运来说,
The surveyed sea area is located at the edge of the continental shelf where the shades change drastically. The flow of sea water is rather complicated. There are both half-day and Sunday-tidal currents, and so-called constant currents with long changing periods. Both the powerful Kuroshio in the Northwest Pacific Ocean flow through here and There have been confluence of coastal currents that are conserved by runoff from major rivers such as the Yangtze River. In the shallow waters of the continental shelf, the general tidal current is more pronounced than that of the normal tidal current. In some areas, the tidal current is one order of magnitude larger than the normal tidal current. However, the trend of the East China Sea basin in the deep water is less important than that of the normal tidal current. The trend is almost negligible. For the transport of sea water,