Lecture 7 Atmospheric Moisture _part 1_

Lecture 7 Atmospheric Moisture _part 1_ - 2. What is meant...

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Lecture 7: Atmospheric Moisture (part 1) Tuesday, February 19 The Impact of Atmospheric Moisture on the Landscape The Nature of Water : The Water Molecule H20 Hydrogen bond Possesses polarity Properties of Water When frozen Surface tension Adhesion Capillary Phase Changes of Water Evaporation Condensation Sublimation Latent Heat Water Vapor and the Hydrological Cycle Review: Water vapor – the gaseous state of water; atmospheric moisture; changes easily depending on temperature and pressure; erratically distributed throughout the world; essentially restricted to lower troposphere. The Hydrologic Cycle
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Evaporation Rates of Evaporation Evapotranspiration Measures of Humidity Absolute Humidity Specific Humidity Vapor Pressure Relative Humidity Condensation
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Study questions for Chapter 6, part 1: The Nature of Water: (p. 141) 1. Describe what happens to the density of water as it freezes.
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Unformatted text preview: 2. What is meant by surface tension of water? Phase Changes of Water (p. 143) 3. Why is evaporation a cooling process? Why is condensation a warming process? Evaporation (p. 146) 4. What are the conditions associated with relatively high rates of evaporation and the conditions associated with relatively low rates of evaporation? 5. What is evapotranspiration ? Measures of Humidity (p. 149) 6. What is absolute humidity ? Specific humidity ? 7. What is meant by saturation vapor pressure ? 8. Describe and explain what is meant when we say that the relative humidity of the air is 50 percent. 9. What is the dew point temperature? 10. Explain sensible temperature . Condensation (p. 151) 11. Under what circumstances can air become supersaturated ?...
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Lecture 7 Atmospheric Moisture _part 1_ - 2. What is meant...

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