V2EX downdrift

Downdrift

定义 Definition

downdrift(名词/形容词)主要指在风、洋流或沿岸输沙作用下,顺着主导运动方向的下游/下风侧;在海岸地貌与海岸工程中常指沿岸漂沙(longshore drift)方向的“下漂侧”,常与 updrift(上漂侧)成对使用。
(另有较少见用法:可泛指任何“向下漂移”的方向或位置。)

发音 Pronunciation (IPA)

/dan.drft/

例句 Examples

The beach downdrift is losing sand every year.
下漂侧的海滩每年都在流失沙子。

Because the groyne blocks longshore transport, sediment builds up updrift while erosion intensifies downdrift of the structure.
由于丁坝阻断了沿岸输沙,上漂侧会淤积沉积物,而建筑物下漂侧的侵蚀会加剧。

词源 Etymology

由 **down-**(向下、顺着某方向)+ drift(漂移、漂流)构成的复合词。最常见于海岸与水文学语境,用来精确描述“沿主导输运方向的下游一侧”(例如沿岸流把沙子带走后,在结构物的下漂侧更容易出现侵蚀)。

相关词 Related Words

文学与著名作品 Literary Works

  • Coastal Engineering Manual(U.S. Army Corps of Engineers,美国陆军工程兵团)在海岸结构物影响与沿岸输沙章节中常用 downdrift(如下漂侧侵蚀)。
  • Shore Protection Manual(U.S. Army Corps of Engineers)讨论丁坝、离岸堤等工程对 downdrift 海滩的影响时常出现该词。
  • Introduction to Coastal Engineering and Management(J.W. Kamphuis)在沿岸漂沙与海岸管理语境中使用 downdrift/updrift 作为关键术语。
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