1. Chapter 27 Section I-II Moisture in the Atmosphere

2. Topics for Today Review – Water Cycle – Composition and Layers of the Atmosphere – Weather New Material – 27-I Humidity Humidity – Specific – Relative Measuring Humidity – Psychrometer – Hygrometers – 27-II Condensation Processes Condensation and Dew Point – Cooling – Saturation Point – Nuclei Fogs – Advective vs. Radiative

3. Water Cycle

4. The Atmosphere Temperature, Pressure and Moisture

5. Weather – Weather is the state of atmosphere at a given time and place – Weather is a combination of… current temperature humidity precipitation cloudiness visibility wind pressure

6. Humidity Specific Relative Figure 27.3 pg. 500

7. Humidity and Quality of Life

8. Measuring Humidity Psychrometer Other Hygrometers – Google images Google images – Horse Hair

9. Condensation Cooling to dew point Figure 27.5 pg 503 Condensation on… – surfaces – Nuclei

10. Condensation at Ground Level: Fog Advective Radiative

11. Summary Specific Humidity Relative Humidity Condensation Processes