A line on a weather map connecting points of equal atmospheric pressure, used to visualize pressure patterns and predict weather movements. Isobars help meteorologists identify high and low pressure systems and understand wind patterns.
From Greek 'isos' meaning 'equal' and 'baros' meaning 'weight' or 'pressure.' The term was introduced in meteorology in the 1860s as scientists developed systematic ways to map and analyze atmospheric pressure patterns.
Isobars are like topographic maps of invisible air pressure mountains and valleys! Where isobars are close together, winds blow strongly as air rushes from high to low pressure, creating the windy conditions that help disperse seeds and pollen across landscapes.
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