Isobars are lines on weather charts that connect points of equal what?

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Study for the Pilot's Handbook of Aeronautical Knowledge Exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

Isobars are lines on weather charts that connect points of equal what?

Explanation:
Isobars connect points that have the same atmospheric pressure, i.e., barometric pressure, on weather charts. They map the pressure field across the map, and the spacing between them shows how strong the pressure gradient is—closer lines mean stronger winds, wider spacing means lighter winds. This concept is distinct from lines that would show temperature (isotherms) or elevation/altitude, or wind speed itself, which are not what isobars depict.

Isobars connect points that have the same atmospheric pressure, i.e., barometric pressure, on weather charts. They map the pressure field across the map, and the spacing between them shows how strong the pressure gradient is—closer lines mean stronger winds, wider spacing means lighter winds. This concept is distinct from lines that would show temperature (isotherms) or elevation/altitude, or wind speed itself, which are not what isobars depict.

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