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陆架是大陆自然延伸的部分。我国邻近海域具有宽广的大陆架,其中东海陆架面积最大,包括黄海在内,其面积达90×10~4千米~2。它向东至冲绳海槽左侧的坡折处,最大宽度位于长江口外,东海陆架的平均水深72米,是世界上最典型的大陆架之一。陆架上的海洋环流是浅海动力学最重要的内容,人们所说的环流是指在所研究的海区内海水定常流动(即扣除周期性的潮流成分后余下的海水流动部分)的形态。对于特定海域而言,
The shelf is a natural extension of the continent. Our country has a broad continental shelf in the adjacent sea area, of which the East China Sea shelf area is the largest, including the Yellow Sea, with an area of 90 × 10 ~ 4 km ~ 2. It extends eastward to the slope on the left side of the Okinawa Trough and its maximum width is located outside the mouth of the Yangtze. The average depth of the East China Sea shelf is 72 meters, making it one of the most typical continental shelves in the world. The ocean circulation on the shelf is the most important element of shallow-sea dynamics. The so-called circulation refers to the morphology of the seawater that is constantly flowing (that is, the part of the seawater remaining after deducting the periodic tidal component) within the sea area under study. For a specific area,