Transcript Chapter 3: The Earth`s Atmosphere and Climates

Geography PowerPoint on
Earth’s Systems and Climates
Age Range: High School
Educational Goals:
• Basic understanding of Greenhouse Effects
• Understand the relationship between solar energy and air
pressure
• Understand the importance of satellites
• Understanding of different climate zones around the world
Abstract
The information for this PowerPoint was taken from an AGS
World Geography text book. The information provided in the
book was difficult to understand and was not visually
stimulating for students. I pulled important facts and details
then added visuals. The PowerPoint also includes a hyperlink
to help explain the Greenhouse Effect. This can be manipulated
together as a class or individually. Upon completion, students
can individually take a quiz provided on that link. The slides
can also be used to help prepare students for the test. The
information can be removed thus leaving only the visuals. This
is especially helpful when describing different climate zones.
By creating this PowerPoint, students are still able to use the
text to answer section questions and they feel less overwhelmed
by the information presented.
Chapter 3: The Earth’s
Atmosphere and Climates
Global Energy Systems
Temperature is the measurement of heat in the
atmosphere.
Everyday the sun’s rays reach the earth.
Some rays are reflected back to space.
Some are absorbed and changed into heat energy.
http://www.epa.gov/globalwarming/kids/global_
warming_version2.html
The Greenhouse Effect
A greenhouse is
a special house
built to grow
plants.
The earth traps
energy the same
way.
Who receives solar
energy?
All of the earth receives solar energy.
The equator receives more solar energy
than the North and South poles.
Heat energy is shared through:
winds
ocean currents
Air Pressure
Air pressure creates the winds and ocean
currents that allows energy to be shared.
Low pressure
air is warmed, expands, becomes lighter,
rises
brings unstable weather
Air Pressure
High pressurecold air
• dense (heavy)
• mostly clear, dry weather
Air pressure zones 1. Equator low pressure 2. Subpolar low pressure
3. Subtropical high pressure 4. Polar high pressure
Air Pressure Zones
1. Equator low
pressure
2. Subpolar low
pressure
3. Subtropical high
pressure
4. Polar high
pressure
Satellites
They collect and send back information
about the earth.
2 types of light
visible light
infrared light - detects heat in clouds,
water, and land
Satellite Images
Satellite Importance
Tracking weather
clouds, storms, oceans
Environment
changes in vegetation (plants)
moisture
visible and infrared light
land surface
air pollution
pests (bugs)
monitor human activity (growth of cities)
burning of rainforests
forest fires
crop (farm) damage
paths of oil spills
animal movement
ground movement of earthquakes
World Climate Zones
Classifying Regions
Low Latitudes
humid tropical
tropical savanna
Dry/Semiarid
desert
steppe
Middle Latitudes
Mediterranean
humid subtropical
Middle Latitude
marine west coast
humid continental
High Latitude
subarctic
tundra
ice cap
Highland
Low Latitudes
Humid Tropical
along equator
South America
Zaire Basin Africa
Southeast Asia
weather patterns
warm and rainy year
round
Vegetation
tropical rainforest
Low Latitudes
Tropical Savanna
between humid
tropics and deserts
Africa
South America
Central America
Southern and
Southeast Asia
Australia
Weather
warm all year
rainy and dry seasons
Vegetation
tropical grassland with
few trees
Dry / Semiarid
Desert
Saharan Africa
southwest Asia
central and western
Australia
southwestern North
America
Weather
Arid (low rainfall)
tropics
- sunny and hot
middle latitudes
huge temperature
range
Steppe -
Dry / Semiarid
bordering deserts
northern and south
Africa
interior western North
America
central and interior
Asia and Australia
southern South
America
Weather
semiarid - a little rain
hot summers
cool winters
similar to desert temp
Vegetation grassland, few trees
Middle Latitudes
Mediterranean
middle latitudes, west
coast
southern Europe
southwest Asia
California
southwestern Australia
central Chile
southwestern South Africa
Weather
dry, sunny warm summers
mild, humid winters
Vegetation
scrub, woodland,
grassland
Middle Latitudes
Humid Subtropical
east coasts in middle
latitudes
southeastern United States
eastern Asia
central southern Europe
southeastern parts of
South Africa and Australia
Weather
hot, humid summers
mild, humid winters
in path of hurricanes and
typhoons
Vegetation
mixed forest
Middle Latitudes
Marine West Coast
upper-middle latitudes,
west coast
Europe and North America
North America
southwestern South
America
Weather
cloudy, mild summers
cool, rainy winters
strong ocean influence
Vegetation
temperate, evergreen
forest
Middle Latitudes
Humid Continental
east coasts and upper
middle latitudes
northeastern North
America
northern and eastern
Europe
northeastern Asia
Weather
4 seasons
long, cold winters
short, warm summers
rain varies
Vegetation
mixed forest
High Latitudes
Subarctic
high latitude of
interior and east
coasts
northern North
America, Europe, and
Asia
Weather
extreme temperatures
• long cold winters
• short warm summers
• very little rain
Vegetation
northern evergreen
forest
High Latitude
Tundra
high latitude coasts
northern parts of North
America, Europe, Asia
Antarctica
subantarctica islands
Weather
cold all year
• long cold winters
• short cool summers
• little rain
Vegetation
moss, lichens, low
shrubs, permafrost bogs
in summer
High Latitude
Ice Cap
polar regions
Antarctica
Greenland
Arctic Basin Islands
Weather
freezing cold
• snow ice all year
• little rain
• temperature is not
higher than freezing
Highland
High mountain
regions
western North and
South America
eastern Asia and
Africa
southern and central
Europe and Asia
Weather
determined by
elevation
higher - cooler
lower - similar to
surroundings
Summary
What did we learn?
Global Energy
Greenhouse Effect
solar energy
air pressure
Satellites
World climate zones
Review
Which statements is true?
We learned there is not a real importance in
understanding climates.
We learned that many factors play a role in
influencing climates such as;
–
–
–
–
–
–
ocean currents
wind
elevation
people
Earth’s surface
sun
We learned global warming is not an important
issue.