V2EX hydrostatic balance

Hydrostatic Balance

定义 Definition

静水平衡(hydrostatic balance):指在静止或近似静止的流体(如大气、海洋)中,垂直方向的压力梯度力与重力相互平衡的状态。常用于气象学与海洋学中描述“大尺度、缓慢变化”条件下的垂直力学关系。(也有人在特定语境下用来泛指“静水压力处于平衡”的状态。)

发音 Pronunciation

/hadrsttk bl.ns/

例句 Examples

In hydrostatic balance, pressure increases with depth.
在静水平衡中,压力会随深度增加而增大。

Large-scale atmospheric motions often assume hydrostatic balance, allowing forecasters to relate pressure changes to altitude in a simplified way.
在大尺度的大气运动中常假设满足静水平衡,从而使预报人员能用更简化的方式把气压变化与高度联系起来。

词源 Etymology

hydro- 来自希腊语 hydōr(“水”);**-static** 来自希腊语 statikos(“使站立的、静止的”),合起来表示“与静止流体有关的”。balance 源自古法语 balance(“天平、平衡”)。整体含义即“静水/静止流体条件下的平衡”。

相关词 Related Words

文学与名著用例 Literary Works

  • An Introduction to Dynamic Meteorology(James R. Holton):在推导大气基本方程与尺度分析时频繁使用“hydrostatic balance”。
  • Atmospheric Science: An Introductory Survey(John M. Wallace & Peter V. Hobbs):在解释大气垂直结构、厚度方程等内容时使用该术语。
  • Descriptive Physical Oceanography: An Introduction(L. V. Worthington 等版本常见于同类教材传统):在讲海洋分层与压力随深度变化时以静水平衡为基础。
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