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Chapter 4 Ecosystems

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Between Polar & Tropic Zones. FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT ... Tropic Zone. 23.5o North & South of the Equator. Receives Nearly Direct Sunlight ... – PowerPoint PPT presentation

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Title: Chapter 4 Ecosystems


1
Chapter 4Ecosystems Communities
  • Section 4-1
  • The Role of Climate

2
What is Climate?
  • Weather
  • The Day-To-Day Condition of Earths Atmosphere at
    a Particular Time Place

3
What is Climate?
  • Climate
  • The Average Year-after-Year Conditions of
    Temperature Precipitation in a Particular Region

4
What is Climate?
  • Climate Is Caused By
  • Trapped Heat
  • Latitude
  • Winds
  • Ocean Currents
  • Precipitation
  • Shape of Land

5
The Greenhouse Effect
  • Key Concept
  • Carbon Dioxide (CO2), Methane (CH4), Water Vapor,
    and a Few Other Atmospheric Gases Trap Heat
    Energy and Maintain Earths Temperature Range.

6
The Greenhouse Effect
  • The Atmosphere Acts Like An Insulating Blanket
  • The Gases Act Like The Glass In A Greenhouse
  • Without Them Earth Would Be 30o Celsius Cooler

7
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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
  • Polar
  • Temperate
  • Tropical

9
Effect of Latitude on Climate
10
Effect of Latitude on Climate
11
Effect of Latitude on Climate
  • Polar Zones
  • Suns Rays Strike At Low Angle
  • Located At Each Pole Between 66.5o 90o North
    South Latitudes

12
Effect of Latitude on Climate
  • Temperate Zones
  • Seasonal Hot Cold
  • Tilt of Earth Angle of Sunlight
  • Between Polar Tropic Zones

13
The Effect of Latitude on Climate
  • Tropic Zone
  • 23.5o North South of the Equator
  • Receives Nearly Direct Sunlight
  • Climate Mostly Warm

14
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15
Heat Transport in the Biosphere
  • Unequal Heating Drives
  • Winds
  • Ocean Currents
  • These Forces Transport Heat Through The Biosphere
  • Hot Rises
  • Cold Decends

16
Heat Transport in the Biosphere
  • Land Mass Topography Affects Currents By
    Disrupting The Flow of Current, and Therefore,
    The Distribution of Heat.

17
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18
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