GEO 211 1st Edition Lecture 11 Outline of Last Lecture I Air and Temperature Data continued A Estimating energy needs a Heating degree days b Cooling degree days c Growing degree days Outline of Current Lecture II Atmospheric Humidity A the hydrologic cycle a circulation mechanisms B Unique phases of water a ice to liquid b liquid to water vapor c water vapor to liquid d liquid to ice e ice to water vapor f water vapor to ice Current Lecture II Atmospheric Humidity Water is only substance in nature that can be solid liquid or gas A the hydrologic cycle circulation of water a circulation mechanisms 1 evaporation 2 transpiration evapotranspiration 3 condensation 4 evaporation Over oceans evaporation is more than precipitation These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute Over land precipitation is more than evaporation Over vegetated land surfaces transpiration is more than evaporation B Unique phases of water Ice liquid water vapor Heat energy absorbed and released during phase changes of water 1 gram pg 35 a ice to liquid 80 calories required Absorbed from the environment Called latent heat of melting or fusion b liquid to water vapor 600 calories required Absorbed from the environment Called latent heat of evaporation or vaporization c water vapor to liquid 600 calories Released in environment Called latent heat of condensation d liquid to ice 80 calories Released in environment Called latent heat of freezing or fusion e ice to water vapor 680 calories required Absorbed from environment Called latent heat of sublimation f water vapor to ice 680 calories Released to environment Called latent heat of deposition
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