V2EX geostrophic current

Geostrophic Current

释义 Definition

地转流:在海洋或大气中,一种近似“匀速直线”的大尺度流动形式,其关键特征是科里奥利力水平压强梯度力彼此平衡,因此流体主要沿着等压(或等位势高度)线方向流动。(在实际情况中仍可能受摩擦、曲率等影响;本词也常用于描述“地转近似”下的流。)

发音 Pronunciation (IPA)

/distrofk krnt/

例句 Examples

A geostrophic current flows along lines of constant pressure.
地转流沿着等压线流动。

In the open ocean, researchers often estimate geostrophic currents from sea-surface height and density measurements to infer large-scale circulation patterns.
在外海,研究人员常用海面高度与密度观测来估算地转流,以推断大尺度环流结构。

词源 Etymology

geostrophicgeo-(“地球”)与 -strophic 组成,后者源自希腊语词根,含“转向/转动”之意;该词在地球物理与流体力学语境中用来指与地球自转相关、由力平衡所决定的流动形式。current 则是“水流/气流、流动”。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Atmosphere-Ocean Dynamics(Adrian E. Gill)
  • Geophysical Fluid Dynamics(Joseph Pedlosky)
  • Introductory Dynamical Oceanography(Stephen Pond & George L. Pickard)
  • Introduction to Physical Oceanography(John A. Knauss)
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