V2EX geostrophy

Geostrophy

释义 Definition

地转平衡(状态):在地球自转影响下,科里奥利力水平压强梯度力相互平衡,从而使流体(大气或海洋)产生沿等压线(或等高线)方向的近似无加速度流动。常用于解释中高纬度的大尺度风场与洋流。(该词在专业语境中使用较多。)

发音 Pronunciation

/distrfi/(也常见 /distrfi/)

例句 Examples

Geostrophy helps explain why winds often blow parallel to isobars.
地转平衡有助于解释为什么风常常沿等压线平行吹动。

In the open ocean away from the equator, geostrophy is a good first approximation for large-scale currents driven by pressure gradients.
在远离赤道的开阔海洋中,地转平衡常被用作由压强梯度驱动的大尺度洋流的一个良好一阶近似。

词源 Etymology

来自 **geo-**(“地球”)+ -strophy(源自希腊语 strophē,意为“转向、旋转/扭转”)。整体含义与“地球自转所导致的流动转向与平衡状态”相关。

相关词 Related Words

文学与著作 Literary Works

  • Geophysical Fluid Dynamics(Joseph Pedlosky):讨论大气与海洋中的地转近似与地转流。
  • Atmospheric and Oceanic Fluid Dynamics(Geoffrey K. Vallis):以地转平衡为核心框架之一讲解环流与波动。
  • AtmosphereOcean Dynamics(Adrian E. Gill):在大尺度环流章节中频繁使用地转平衡概念。
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