Water in the atmosphere

Water in the atmosphere - Water in the Atmosphere I. Phase...

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Water in the Atmosphere
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I. Phase Changes of Water
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Effects and examples of phase changes Melting Cooling Snow melt inhibits temperature rises. Warmth not observed in Arctic until snow has melted. Freezing Warming Surface temperature hangs at 32 until all of the water has frozen. Evaporation Cooling Cooling when it starts to rain. Condensation Warming Adds buoyancy to updrafts in thunderstorm or hurricane. Nocturnal temperature drop decreases/stops when dew forms. Sublimation Cooling Cooling when it starts to snow. ---ice goes directly to water vapor Deposition Warming Ice fogs, which are common in high latitudes Contrails
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II. Humidity 1. Vapor Pressure (VP) HOW MUCH WATER VAPOR IS IN THE AIR 2. Saturation Vapor Pressure (SVP) – how much water vapor the atmosp 4 14 Positive, non-linear relationship. What are the implications?
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3. Relative Humidity (RH) RH range: 0 ----------------------------------------->100% far from saturation ---------------> close to saturation What is saturation
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This note was uploaded on 12/10/2010 for the course GEOG 111 taught by Professor Konrad,c during the Fall '07 term at UNC.

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Water in the atmosphere - Water in the Atmosphere I. Phase...

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