1. FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Chapter 4 Ecosystems & Communities Section 4-1 The Role of Climate

2. FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT What is Climate? WeatherWeather –The Day-To-Day Condition of Earth’s Atmosphere at a Particular Time & Place

3. FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT What is Climate? ClimateClimate –The Average Year-after-Year Conditions of Temperature & Precipitation in a Particular Region

4. FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT What is Climate? Climate Is Caused By:Climate Is Caused By: –Trapped Heat –Latitude –Winds –Ocean Currents –Precipitation –Shape of Land

5. FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT The Greenhouse Effect Key Concept: Carbon Dioxide (CO 2 ), Methane (CH 4 ), Water Vapor, and a Few Other Atmospheric Gases Trap Heat Energy and Maintain Earth’s Temperature Range.

6. FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT The Greenhouse Effect The Atmosphere Acts Like An Insulating BlanketThe Atmosphere Acts Like An Insulating Blanket The Gases Act Like The Glass In A GreenhouseThe Gases Act Like The Glass In A Greenhouse –Without Them Earth Would Be 30 o Celsius Cooler

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8. Effect of Latitude on Climate Key Concept: As a Result of Differences in Latitude & Thus The Angle of Heating. Earth Has Three (3) Main Climate Zones: As a Result of Differences in Latitude & Thus The Angle of Heating. Earth Has Three (3) Main Climate Zones: 1.Polar 2.Temperate 3.Tropical

9. FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Effect of Latitude on Climate

10. FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Effect of Latitude on Climate

11. FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Effect of Latitude on Climate Polar ZonesPolar Zones –Sun’s Rays Strike At Low Angle –Located At Each Pole Between 66.5 o & 90 o North & South Latitudes

12. FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Effect of Latitude on Climate Temperate ZonesTemperate Zones –Seasonal Hot & Cold Tilt of Earth & Angle of SunlightTilt of Earth & Angle of Sunlight –Between Polar & Tropic Zones

13. FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Effect of Latitude on Climate Tropic ZoneTropic Zone –23.5 o North & South of the Equator –Receives Nearly Direct Sunlight Climate Mostly WarmClimate Mostly Warm

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15. Heat Transport in the Biosphere Unequal Heating DrivesUnequal Heating Drives –Winds –Ocean Currents These Forces Transport Heat Through The BiosphereThese Forces Transport Heat Through The Biosphere –Hot Rises –Cold Descends

16. FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Heat Transport in the Biosphere

17. FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Heat Transport in the Biosphere

18. FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Heat Transport in the Biosphere Land Mass Topography Affects Currents By Disrupting The Flow of Current, and Therefore, The Distribution of Heat.Land Mass Topography Affects Currents By Disrupting The Flow of Current, and Therefore, The Distribution of Heat.

19. FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Heat Transport in the Biosphere

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