Global Circulation and Weather Systems Global Circulation and Weather Systems Atmospheric Pressure...

Atmospheric Pressure – Do you feel pressure? the force Atmospheric pressure is the force exerted on you by the weight of the exerted on you by the weight of the atmosphere. atmosphere. Gravity holds the gasses and Gravity holds the gasses and pulls them down to earth. pulls them down to earth. You feel the weight. You feel the weight. Atmospheric pressure decreases Atmospheric pressure decreases as altitude increases. as altitude increases. 99% of the atmosphere is found 99% of the atmosphere is found in the first 32 km. in the first 32 km. the force Atmospheric pressure is the force exerted on you by the weight of the exerted on you by the weight of the atmosphere. atmosphere. Gravity holds the gasses and Gravity holds the gasses and pulls them down to earth. pulls them down to earth. You feel the weight. You feel the weight. Atmospheric pressure decreases Atmospheric pressure decreases as altitude increases. as altitude increases. 99% of the atmosphere is found 99% of the atmosphere is found in the first 32 km. in the first 32 km. 15 lb/in 2 (psi) 15 lb/in 2 (psi) mb (metric unit) mb (metric unit)