V2EX low-pressure system

Low-pressure System

Definition / 定义

(气象)低压系统:指某一区域的气压低于周围地区所形成的大尺度天气系统,常伴随空气上升、云量增多、降水以及较强风;在天气图上常表现为等压线向内闭合或呈槽状。也常被称为低压区,在某些语境下与 depression(低压/气旋性低压)相关。

Pronunciation / 发音

/lo prr sstm/

Examples / 例句

A low-pressure system is moving in from the west.
一个低压系统正从西边移入。

As the low-pressure system deepened overnight, coastal winds strengthened and heavy rain spread across the region.
由于低压系统在夜间加深,沿海风力增强,强降雨扩展到整个地区。

Etymology / 词源

这是一个由三个常用词构成的复合名词:low(低的)+ pressure(压力/气压)+ system(系统)。其中 pressure 源自中古法语并可追溯到拉丁语 pressura(“挤压、压力”之意);system 源自希腊语 systēma(“组合在一起的整体/体系”)。合起来字面意思就是“低气压的系统”。

Related Words / 相关词

Literary Works / 文学作品

  • The Perfect Storm(Sebastian Junger):书中以叙事方式描述风暴发展过程,常涉及低压系统的形成与增强。
  • The Sea Around Us(Rachel Carson):以科普散文笔法讨论海洋与天气现象,涉及气压与风暴等天气系统的表达。
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