On a surface analysis chart, which feature depicts the measurement of atmospheric pressure?

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Multiple Choice

On a surface analysis chart, which feature depicts the measurement of atmospheric pressure?

Pressure on a surface analysis chart is shown by lines of equal sea-level pressure called isobars. Each isobar represents a constant pressure value (usually given in millibars or hectopascals) and the spacing between lines reveals the pressure gradient—the closer the lines, the stronger the winds tend to be. High-pressure systems appear as circles or rings of isobars around higher pressure values, while low-pressure systems have isobars looping around lower pressures. Isotherms map equal temperatures, isoheight lines indicate equal geopotential height on a given pressure surface (used on upper-air charts), and the term isodrome isn’t the standard way to depict surface pressure. So the feature that depicts atmospheric pressure on a surface chart is the isobar.

Pressure on a surface analysis chart is shown by lines of equal sea-level pressure called isobars. Each isobar represents a constant pressure value (usually given in millibars or hectopascals) and the spacing between lines reveals the pressure gradient—the closer the lines, the stronger the winds tend to be. High-pressure systems appear as circles or rings of isobars around higher pressure values, while low-pressure systems have isobars looping around lower pressures. Isotherms map equal temperatures, isoheight lines indicate equal geopotential height on a given pressure surface (used on upper-air charts), and the term isodrome isn’t the standard way to depict surface pressure. So the feature that depicts atmospheric pressure on a surface chart is the isobar.

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