1. Clouds

2. Visualizing Physical Geography Copyright © 2008 John Wiley and Sons Publishers Inc. Clouds Clouds consist of water droplets, ice crystals, or both Condensation nucleus : a tiny bit of solid matter (aerosol) in the atmosphere, on which water vapor condenses to form a tiny water droplet

3. Visualizing Physical Geography Copyright © 2008 John Wiley and Sons Publishers Inc. Clouds Cloud Families: High clouds, middle clouds, low clouds, clouds of vertical development

4. Visualizing Physical Geography Copyright © 2008 John Wiley and Sons Publishers Inc. Cumulus Clouds Cumuliform clouds: globular masses of cloud, associated with parcels of rising air Clouds

5. Visualizing Physical Geography Copyright © 2008 John Wiley and Sons Publishers Inc. Clouds Image ID: wea02050, NOAA's National Weather Service (NWS) Collection Photographer: Ralph F. Kresge http://www.photolib.noaa.gov/htmls/wea02050.htm Stratus Clouds Stratiform clouds: blanket-like, cover large areas

6. Visualizing Physical Geography Copyright © 2008 John Wiley and Sons Publishers Inc. Cirrus Clouds Cirrus clouds: high, thin, wispy clouds composed of ice crystals Clouds