Chapter 4Global Climates and Biomes

Thank you AshEl!!

Chapter 4Global Climates and Biomes

Interact with your notes

• 1.Explain the concept of “Albedo”

• OR

• 2. Gives me two examples of processes that occur in the air

Weather and Climate •Weather- short term conditions of the atmosphere in a local area. Includes: temperature, humidity, clouds, precipitation, wind speed and atmospheric pressure.

•Climate- average weather that occurs in a given region over a long period- typically several decades.

Evidence for changes in climate

• Tree rings• Fossilized plants• Insect and pollen samples• Gas bubbles in glaciers• Deep ice core samples• Lake sediments• Dust analysis• Isotope ratios in fossilized remains

The point is

What affects an areas climate?

• LAWT-O!LAWT-O!

• Latitude (distance from the equator)

• Altitude (height above sea level)

• Winds

• Topography (shape and location of land)

• Ocean Currents

Goal #1Earth's Atmosphere

• What are they?• What are their characteristics?• Explain reasoning behind their

temperature change.

Goal #2 Unequal Heating of Earth

• The variation in angle at which the Sun's rays strike

• Some areas of Earth reflect more solar energy than others. (Albedo)

Goal #3Wind and Convection

Currents•Air moves! • Why?• How does this affect

regional climate?

Earth's Rotation and the Coriolis Effect

• As Earth rotates, its surface moves much faster at the equator than in mid-latitude and polar regions.

•

Goal #3 continued…Global Winds!!

• Coriolis Effect- the deflection of an object's path due to Earth's rotation.

• The prevailing winds of the world are produced by a combination of atmospheric convection currents and the Coriolis effect.

Layers of Atmosphere

Layers of Atmosphere

Layers of Atmosphere

Albedo Albedo Albedo

Wind Wind Wind

Station Learning Experience!

Review your handouts

• Examples – explain convection and high low pressure

• The type of climate associated with high low climate

• Study global wind diagram

• Study layers of atmosphere diagram

1. In which layer of the atmosphere does more weather occur?

• A. Troposphere• B. Stratosphere• C. Mesosphere• D. Thermosphere• E. Lithosphere

3. Low pressure area is associated with

• A. hot and humid weather• B. fair weather• C. tornadoes• D. cloudy and stormy weather• E. hurricanes

5. Population of predator and prey. If the numbers of prey decrease, then the some predators starve and their

population numbers will decrease until it reaches the carrying capacity for

food source

• A. positive feedback loop• B. negative feedback loop

1. In which layer of the atmosphere does more weather occur?

• A. Troposphere• B. Stratosphere• C. Mesosphere• D. Thermosphere• E. Lithosphere

3. Low pressure area is associated with

• A. hot and humid weather• B. fair weather• C. tornadoes• D. cloudy and stormy weather• E. hurricanes

5. Population of predator and prey. If the numbers of prey decrease, then the some predators starve and their

population numbers will decrease until it reaches the carrying capacity for

food source

• A. positive feedback loop• B. negative feedback loop

What’s your DOT?

• Do One ThingTo help the environment today

2. Climate is influenced by

• A. the amount of incoming solar radiation.• B. Earth's rotation.• C. the tilt of Earth's axis.• D. all of these answers.

4. Ozone

• A. in the stratosphere is a pollutant.• B. is formed in the stratosphere through the

interaction of infrared radiation and molecular oxygen.

• C. filters out all harmful ultraviolet radiation.• D. in the stratosphere forms a thermal cap

important in determining the average temperature of the troposphere.

2. Climate is influenced by

• A. the amount of incoming solar radiation.• B. Earth's rotation.• C. the tilt of Earth's axis.• D. all of these answers.

4. Ozone

• A. in the stratosphere is a pollutant.• B. is formed in the stratosphere through the

interaction of infrared radiation and molecular oxygen.

• C. filters out all harmful ultraviolet radiation.• D. in the stratosphere forms a thermal cap

important in determining the average temperature of the troposphere.