Temperature Inversions. Temperature Inversion Air Molecules As you go higher in the atmosphere, air...

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Temperature Inversions

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Transcript of Temperature Inversions. Temperature Inversion Air Molecules As you go higher in the atmosphere, air...

Page 1: Temperature Inversions. Temperature Inversion Air Molecules As you go higher in the atmosphere, air becomes less dense. The air molecules are spaced.

TemperatureInversions

Page 2: Temperature Inversions. Temperature Inversion Air Molecules As you go higher in the atmosphere, air becomes less dense. The air molecules are spaced.

Temperature Inversion

Page 3: Temperature Inversions. Temperature Inversion Air Molecules As you go higher in the atmosphere, air becomes less dense. The air molecules are spaced.

Air Molecules

• As you go higher in the atmosphere, air becomes less dense.

• The air molecules are spaced further apart 1

Page 4: Temperature Inversions. Temperature Inversion Air Molecules As you go higher in the atmosphere, air becomes less dense. The air molecules are spaced.

Air Molecule Density

Page 5: Temperature Inversions. Temperature Inversion Air Molecules As you go higher in the atmosphere, air becomes less dense. The air molecules are spaced.

Air Density

• That is why it is hard to breathe at high altitudes.

• That is also why it is colder at high altitudes

Page 6: Temperature Inversions. Temperature Inversion Air Molecules As you go higher in the atmosphere, air becomes less dense. The air molecules are spaced.

Molecule Density Verses Temperature

Heat is from molecule collisions.

Fewer molecules……

Fewer collisions……

Less heat! 2

Page 7: Temperature Inversions. Temperature Inversion Air Molecules As you go higher in the atmosphere, air becomes less dense. The air molecules are spaced.

Why Air Density Changes

• The weight of the air causes the at the ground to have high pressure.

• Gravity pulls the air close to the earth

• The high pressure pushes the air molecules close together 3

Page 8: Temperature Inversions. Temperature Inversion Air Molecules As you go higher in the atmosphere, air becomes less dense. The air molecules are spaced.

Air Molecule Density

Page 9: Temperature Inversions. Temperature Inversion Air Molecules As you go higher in the atmosphere, air becomes less dense. The air molecules are spaced.

Temperature vs Pressure• As the pressure of a gas drops, it’s

temperature also drops.

• Evidence– Condensation on a Coleman lantern– Warm soda cools when you open it.

Page 10: Temperature Inversions. Temperature Inversion Air Molecules As you go higher in the atmosphere, air becomes less dense. The air molecules are spaced.

Air Temperature vs Altitude

SO,

The higher you go. . .

The less dense the air . . .

The colder it gets!

Page 11: Temperature Inversions. Temperature Inversion Air Molecules As you go higher in the atmosphere, air becomes less dense. The air molecules are spaced.

Air Temperature

Page 12: Temperature Inversions. Temperature Inversion Air Molecules As you go higher in the atmosphere, air becomes less dense. The air molecules are spaced.

Smoke Rises in the Air,Normally

Page 13: Temperature Inversions. Temperature Inversion Air Molecules As you go higher in the atmosphere, air becomes less dense. The air molecules are spaced.

Why does the hot smoke rise?

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Page 14: Temperature Inversions. Temperature Inversion Air Molecules As you go higher in the atmosphere, air becomes less dense. The air molecules are spaced.

• What happens to the temperature of the hot smoke as is rises?

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Page 15: Temperature Inversions. Temperature Inversion Air Molecules As you go higher in the atmosphere, air becomes less dense. The air molecules are spaced.

Temperature Inversion

• A temperature inversion is when a layer of warmer air covers the colder air at ground level.

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Page 16: Temperature Inversions. Temperature Inversion Air Molecules As you go higher in the atmosphere, air becomes less dense. The air molecules are spaced.

Temperature Inversion

• It forms when the ground level air is kept cold by the cold ground.

• Then a warm air mass comes from another area and covers the cold air.

• The inversion acts like a lid over the cold ground level air 7-8

Page 17: Temperature Inversions. Temperature Inversion Air Molecules As you go higher in the atmosphere, air becomes less dense. The air molecules are spaced.

How it Happens

Page 18: Temperature Inversions. Temperature Inversion Air Molecules As you go higher in the atmosphere, air becomes less dense. The air molecules are spaced.
Page 19: Temperature Inversions. Temperature Inversion Air Molecules As you go higher in the atmosphere, air becomes less dense. The air molecules are spaced.

Smoke Stops Rising!

Page 20: Temperature Inversions. Temperature Inversion Air Molecules As you go higher in the atmosphere, air becomes less dense. The air molecules are spaced.

Why does the smoke stop rising?

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Page 21: Temperature Inversions. Temperature Inversion Air Molecules As you go higher in the atmosphere, air becomes less dense. The air molecules are spaced.

All Over Town

Page 22: Temperature Inversions. Temperature Inversion Air Molecules As you go higher in the atmosphere, air becomes less dense. The air molecules are spaced.

The Air Gets Dirty!

Page 23: Temperature Inversions. Temperature Inversion Air Molecules As you go higher in the atmosphere, air becomes less dense. The air molecules are spaced.

Real Dirty!

Page 24: Temperature Inversions. Temperature Inversion Air Molecules As you go higher in the atmosphere, air becomes less dense. The air molecules are spaced.

Temperature Inversion

Page 25: Temperature Inversions. Temperature Inversion Air Molecules As you go higher in the atmosphere, air becomes less dense. The air molecules are spaced.

SO WHAT?

• How do

• temperature inversions

• affect us?

Page 26: Temperature Inversions. Temperature Inversion Air Molecules As you go higher in the atmosphere, air becomes less dense. The air molecules are spaced.

What Can We Do?

What are some ways

we can protect ourselves

from the effects of

temperature inversions?


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