V2EX geopotential

Geopotential

释义 Definition

geopotential(地球位势;地位势):在地球重力场中,单位质量从参考面移动到某一点所具有的重力势能(常用于气象学、地球物理与大气科学中);相关概念常见于 geopotential height(位势高度)

发音 Pronunciation

/dioptnl/

例句 Examples

Geopotential increases with altitude.
位势会随着高度增加而增大。

In atmospheric models, geopotential is used to relate pressure levels to the height of the air column, helping describe large-scale circulation.
在大气模式中,位势用于把气压层与空气柱的高度联系起来,从而帮助描述大尺度环流。

词源 Etymology

由 **geo-**(“地球”)+ potential(“势能的、潜在的”)构成,字面意思是“与地球相关的势(能)”。该词在科学语境中强调“由地球重力场决定的势能/位势”,因此常出现在大气动力学与地球测量学的术语体系里。

相关词 Related Words

文学与著作中的用例 Literary Works

  • An Introduction to Dynamic Meteorology(James R. Holton & Gregory J. Hakim):用于讨论大气动力学方程中的位势与位势高度。
  • Atmospheric and Oceanic Fluid Dynamics(Geoffrey K. Vallis):在推导环流与能量关系时频繁使用 geopotential/位势。
  • Fundamentals of Atmospheric Physics(Murry L. Salby):在压力坐标与高度坐标转换、静力平衡等章节中出现。
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