Pressure-Temperature-Density
¥Pressure (vertical scale highly distorted)
¥Decreases more rapidly with height in cold air than in warm air
¥Isobaric surfaces will slope downward toward cold air
¥Slope increases with height to tropopause, near 300 mb in winter
Text Box: 8.5 km    COLDText Box: 9.5 km    WARMText Box: 300 mbText Box: 1000 mbText Box: 400 mbText Box: 500 mbText Box: 600 mbText Box: 700 mbText Box: 800 mbText Box: 900 mbText Box: 200 mbText Box: 100 mb
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