Transcript Slide 1
Chapter 22 1. Layers of Atmosphere • • • • • Exosphere- least pressure Thermosphere-hottest, least pressure Mesosphere-coolest, meteors Stratosphere-ozone Troposphere- weather, most pressure 2. Earth Sun Relationships Summer Solstice Sun Winter Solstice Sun 3. Seasonal Dates • • • • Summer Solstice- June 20th-22nd Winter Solstice- December 20th-22nd Autumnal Equinox- September 20th-22nd Vernal Equinox- March 20th – 22nd 4. 24 hrs of daylight in North Pole? • Summer Solstice 5. Nitrogen Cycle Steps • • • • C B A D 6. Photosynthesis • Puts Oxygen back into the air which is needed for life 7. Transfer of Energy • A. Lost • B. Gained • C. Lost 8. Impact of CFC’s • Chlorofluorocarbons • Destroys Ozone 9. Convection, Conduction, Radiation • A. Convection- Transfer of energy through hot rising and cool sinking in circular motion moving heat throughout. Popcorn air popper. • B. Conduction- Transfer of energy through direct contact. Popcorn cooking on stove • C. Radiation- Transfer of energy though waves most of which are invisible. Microwave popcorn 10. Greenhouse Effect • Traps solar radiation that is not absorbed at first by Earth. Keeps us warm. 11. Global Warming • Atmosphere gets too hot and CO2 increases. Chapter 23 1. Things that form clouds • • • • 1. Unstable air 2. Air lifting mechanism 3. Condensation nuclei “dirty air” 4. Saturated air 2. Air Lifting Mechanisms • • • • Orographic Lifting Convergence Frontal Wedging Convection 3. Cloud Classification • Shape • Height 4. Basic Cloud Types • Cirrus- Thin, wispy, and white • Cumulus- Fluffy, white, and big • Stratus- Shapeless, gray, thick, and covering 5. Clouds a weather • High cumulus and cirrus clouds indicate clear weather • Low cumulus (cumulonimbus/cumulus) Stratus (nimbostratus) indicate precipitation 6. Cloud Height • High (above 6,000 m)- cirrus, cirrostratus, cirrocumulus CirrMiddle (btw, 2,000-6,000) - altocumulus and altostratus AltoLow- (below 2,000 m) stratus, stratocumulus, and nimbostratus Strat- 7. and 8. Air temp and moisture • Hot air holds more moisture than cool air. • Increase in air temp means increase in moisture • T or F: True 9. When is air saturated • 100% 11. Content vs. capacity • The air cannot hold more than it is capable of 12. Humidity Problems • • • • • • • • • • 1. 8; -17 2. 81;15 3. 51;10 4. 9; -10 5. 7; 48 6. 35; 57% 7. 5; 100% 8. 47; 85% 9. 10; 50% 10. 20; 75%