2. Question of the Day
Question: How are weather and climate different? (take your best guess!) Answer: … … …
More than 25 types of elements
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Air Pressure & Wind WS (blue)
Pressure, Humidity, & Clouds WS (white)

3. Weather, Climate and Hadley Cells

4. What is weather?
Weather is the temperature, humidity, atmospheric pressure, wind, and precipitation in a particular area on a particular day.
Almost all weather occurs in the troposphere. (That’s where all the atmospheric water is located.)

5. What is climate?
Climate is an average of the weather conditions at a particular place over a long period of time.
Climate is the long-term predictable state of the atmosphere.

6. Hadley, Ferrel and Polar Cells
Patterns of circulation in the atmosphere that distribute heat on the surface of the Earth.

7. 90O North 60O North 30O North 0O Equator 30O South 60O South 90O South
Easterlies
Westerlies
30O North
Trade Winds
0O Equator
Trade Winds
30O South
Westerlies
Easterlies
60O South
90O South

8. Tropical (Tropical Wet, Humid Subtropical) – Warm & humid climate; near 0O
Deserts (Tropical Dry, Semiarid, Arid) – Hot & dry climate; near 300
Temperate Forests (Cool Summer, Subarctic)– Moderate temperature & humid; near 60O
Tundra (Ice) - Cold & dry (frozen desert); near 90O
Mediterranean – always on southwest side of continent

9. Tropical Forest

10. Desert Landscape

11. Temperate Forest

12. Tundra Landscape

13. Mediterranean Landscape

14. Rain Shadow Effect Windward side of mountains get more precipitation
Wind (contains moisture)
Ocean
Driest
Drier
Dry

15. Typical Nevada Landscape