GEO 211 1st Edition Lecture 11Outline of Last Lecture I. Air and Temperature Data continuedA. Estimating energy needs:a. Heating degree daysb. Cooling degree daysc. Growing degree days Outline of Current Lecture II. Atmospheric Humidity A. the hydrologic cyclea. circulation mechanismsB. Unique phases of watera. ice to liquid b. liquid to water vapor c. water vapor to liquidd. liquid to icee. ice to water vaporf. water vapor to iceCurrent LectureII. Atmospheric Humidity - Water is only substance in nature that can be solid, liquid, or gasA. the hydrologic cycle (circulation of water)a. circulation mechanisms1. evaporation2. transpiration (evapotranspiration)3. condensation4. evaporation- Over oceans evaporation is more than precipitationThese 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 evaporationB. 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 condensationd. 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 sublimationf. water vapor to ice- 680 calories- Released to environment - Called latent heat of
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