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Term | Definition |
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Instability |
Occurs when a rising air parcel becomes less dense than the surrounding air. Since its temperature will not cool as rapidly as the surrounding environment, it will continue to rise on its own. Contrasts with stable air. |
Intertropical Convergence Zone |
The axis dividing the southeast trades from the northeast trades, toward which the surface winds tend to converge The easterly trade winds of both hemispheres converge at an area near the equator called the "Intertropical Convergence Zone (ICTZ)", producing a narrow band of clouds and thunderstorms that encircle portions of the globe. Aliases (separate with |): ITCZ
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Isobar |
The line drawn on a weather map connecting points of equal barometric pressure. |