Longshore drift

（重定向自Longshore current）

Figure 2. Provincetown Spit, at the northern end of Cape Cod, was formed by longshore drift after the end of the last Ice age.

Figure 3. Timber groyne from Swanage Bay, UK

Figure 4. Picture showing the use of artificial headlands and detached breakwaters in a coastal system

Longshore drift is a geographical process that consists of the transportation of sediments (clay, silt, sand and shingle) along a coast at an angle to the shoreline, which is dependent on prevailing wind direction, swash and backwash. This process occurs in the littoral zone, and in or close to the surf zone. The process is also known as littoral drift, longshore current or longshore transport.

单词	Longshore current
释义	Longshore current 原声例句世卫组织科普短片 You can swim left or right but you do not want to swim against the longshore current as it can pull you back into the offshore flowing rip. 你可以向左或向右游，但是不要逆着它游，因为它可能会把你拉回到离岸流的激浪中。英语百科 Longshore drift （重定向自Longshore current） Longshore drift is a geographical process that consists of the transportation of sediments (clay, silt, sand and shingle) along a coast at an angle to the shoreline, which is dependent on prevailing wind direction, swash and backwash. This process occurs in the littoral zone, and in or close to the surf zone. The process is also known as littoral drift, longshore current or longshore transport.
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