Humidity, Condensation, Clouds, and Fog or Water in the Atmosphere
Humidity, Condensation, Clouds, and Fog or Water in the Atmosphere
Humidity, Condensation, Clouds, and Fog or Water in the Atmosphere
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1. Vap<strong>or</strong> PressureConcept - Each gas <strong>in</strong> <strong>the</strong> atmosphere contributesits own partial pressure (part of <strong>the</strong> total). Say <strong>the</strong>total pressure is 1000 millibars, , <strong>and</strong> 1% of <strong>the</strong> airis water vap<strong>or</strong>.nitrogen (78%) – partial pressure = 780 mboxygen (21%) – partial pressure = 210 mbwater vap<strong>or</strong> (1%) – partial pressure = 10 mb(Saturation vap<strong>or</strong> pressure = vap<strong>or</strong> pressure if <strong>the</strong>air is saturated)
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