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Isobar: meaning, definitions and examples

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isobar

 

[ ˈaɪsəˌbɑr ]

Noun
Context #1 | Noun

meteorology

An isobar is a line on a weather map that connects points of equal atmospheric pressure. Isobars are used to visualize the pressure differences and predict weather patterns. When isobars are close together, it indicates strong winds, while widely spaced isobars suggest calmer conditions. Meteorologists use isobars to analyze weather systems and forecast changes in the atmosphere.

Synonyms

contour line, pressure line

Examples of usage

  • The isobars on the map showed a storm moving in.
  • Meteorologists track isobars to understand pressure systems.
  • As the isobars converged, we expected high winds.
  • The isobar pattern indicated a cold front approaching.

Etymology

The term 'isobar' originates from the Greek words 'iso-' meaning 'equal' and 'baros' meaning 'weight'. It was first coined in the mid-19th century during the development of meteorological mapping. The use of isobars became critical as scientists sought to better understand and predict weather patterns based on atmospheric pressure. The visualization of equal pressure areas provided insight into wind patterns and storm development. As meteorology evolved, isobars remained a fundamental tool for meteorologists, playing a crucial role in both weather forecasting and the scientific study of atmospherical behavior.

Word Frequency Rank

This word's position of #33,979 indicates it's among the more rare English words. While understanding it broadens your vocabulary, focus on more common words first.