Review: Atmosphere Air Masses Fronts Winds Most pictures are not to scale. Please excuse this, Will.

The earth’s atmosphere is made of 4 main layers The earth’s atmosphere is made of 4 main layers. List them in order from earth’s surface.

thermosphere (ionosphere & exosphere) mesosphere stratosphere Troposphere

“Shooting stars” or meteors can be seen moving through this layer.

Mesosphere

This is the thickest layer with the highest temperatures.

Thermosphere

The ozone layer is found within this layer The ozone layer is found within this layer. {Damage to the ozone layer may be due to smog & chemicals called CFC’s (that come from spray cans & refrigerator coolants under pressure!}

Smog & cfcs

stratosphere

This is the layer where we live & breathe This is the layer where we live & breathe. its where it rains & snows, too!

troposphere

This layer of the atmosphere is the last stop before entering “outer Space”. Earth

exosphere

True or false? The atmosphere is made of gases only.

False!

The most abundant gases in dry air are a. carbon dioxide & oxygen b The most abundant gases in dry air are a. carbon dioxide & oxygen b. nitrogen & oxygen c. carbon dioxide & argon

b. nitrogen & oxygen

Which is heated faster by the energy from the sun, land or water?

Land It takes less energy to heat the land Land It takes less energy to heat the land. Remember: sand feels very hot when you walk on it during the day, so you run to cooler water!

Which area of earth receives more direct solar radiation. A Which area of earth receives more direct solar radiation? A. the equator B. the poles c. neither of these

A. the equator

Wind is caused by A. differences in air pressure (caused by cool & warm temps) B. movement of clouds at different levels of the atmosphere c. changes in the water cycle

A. differences in air pressure cool (sinks) & warm (rises)

Which picture shows a land breeze & which shows a sea breeze?

Sea Breeze Land breeze During the day Breeze blows from the cooler sea towards the warmer land Land breeze At night Breeze blows from the cooler land out towards the still-warm sea

What is the name of the winds shown in the red area below What is the name of the winds shown in the red area below? (they move storms across the U.s.)

Jet stream

How would you label each air mass in the diagram How would you label each air mass in the diagram? (Remember: each area needs a temp & a humidity description)

Remember: each needs a temp (Polar or Tropical) & humidity description (Continental or Maritime) the air masses are the “boxes”, the arrows show where they are moving cP mP cP mP cT mT mT mT

Label the global winds Remember…mirror image

GLOBAL WINDS Polar Easterlies prevailing westerlies trade winds trade winds prevailing westerlies polar easterlies