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Isobar: meaning, definitions and examples

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isobar

 

[ˈaɪsəˌbɑr ]

Definition

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.

Interesting Facts

Etymology

  • The term comes from the Greek words 'iso' meaning 'equal' and 'baros' meaning 'weight'.
  • First used in the mid-19th century, the concept was crucial for the development of meteorology.

Science

  • Isobars play a key role in understanding weather patterns, helping to predict winds and storms.
  • When isobars are close together, it indicates stronger winds; when they are far apart, winds are usually lighter.

Geography

  • Isobars are often depicted on weather maps, which are used worldwide to forecast climate conditions.
  • Different countries may develop their unique color codes for displaying isobars on maps.

History

  • Meteorologists like Francis Beaufort in the 1800s helped popularize the use of isobars in weather forecasting.
  • The establishment of the first weather service in Europe utilized isobar maps to improve accuracy in predictions.

Application in Daily Life

  • Understanding isobars can help individuals plan outdoor activities by knowing potential weather changes.
  • Airline pilots and sailors use maps with isobars to navigate safely through varying weather conditions.

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.