Presentation is loading. Please wait.

Presentation is loading. Please wait.

Atmosphere.

Similar presentations


Presentation on theme: "Atmosphere."— Presentation transcript:

1 Atmosphere

2 IMPORTANCE CONTAINS OXYGEN, CARBON DIOXIDE, AND WATER INSULATOR
PROTECTION FROM METEORS

3 ORIGINS 1. COOLING OF MOLTEN ROCK 2. WATER VAPOR (g)  RAIN (l)  OCEANS 3. ORGANISMS USED CO2 AND SUN  O2  OTHER ORGANISMS

4 COMPOSITION GASES - 78% NITROGEN - 21% OXYGEN
- 1%: ARGON, CO2, WATER VAPOR SOLIDS - POLLEN, SALT, AND DUST LIQUID - WATER AND ACIDS

5

6 REVIEW WHAT GASES ARE THE EARTH’S ATMOSPHERE MADE UP OF?
MOSTLY NITOGREN, THEN OXYGEN, AND SMALL AMOUNT OF ARGON, CO2, AND WATER VAPOR

7

8 LAYERS TROPOSPHERE - WARMEST NEAR SURFACE STRATOSPHERE
- LOWER: HIGH AMOUNT OF OZONE GAS (OZONE LAYER) - ABSORBS ULTRAVIOLET RAYS  PROTECTION

9 MESOSPHERE AND THERMOSPHERE
- LARGER THAN 1ST TWO LAYERS - ONLY 1% GAS - BURN UP METEORS BY FRICTION - CONTAINS IONOSPHERE - CHARGED PARTICLES - AUROAS

10 EXOSPHERE - PRESSURE AND DENSITY VERY LOW - MOLECULES MOVE AT FAST SPEEDS

11 REVIEW WHAT ARE THE LAYERS OF THE ATMOSPHERE STARTING WITH THE ONE CLOSEST TO THE EARTH? TROPOSPHERE: CLOUDS + PLANES STRATOSPHRE: OZONE LAYER + WEATHER BALLOON MESOSPHERE: METEORS BURNED UP THERMOSPHERE: METEORS + AURORAS EXOSPHERE: SATELITES

12 PRESSURE AND ALTITUDE GRAVITY PULLS ATMOSPHERE TOWARD EARTH
HIGHER THE ALTITUDE  LESS DENSE

13 TEMPERATURE AND ALTITUDE
TROPOSPHERE -TEMP. DECREASE AS ALTITUDE INCREASES STRATOSPHRE -TEMP. INCREASE AS ALTITUDE INCREASES MESOSPHERE -TEMP. DECREASE AS ALTITUDE INCREASE THERMOSPHRE + EXOSPHERE -TEMP. INCREASE AS ALTITUDE INCREASE

14 REVIEW HOW DOES TEMPERATURE CHANGE AS ALTITUDE INCREASES WITHIN EACH OF THE LAYERS OF THE ATMOSPHERE?

15 SUN ENERGY RADIATION -VISIBLE LIGHT -UV LIGHT -INFRARED

16 EARTH ENERGY ABSORBED -20% BY PARTICLES -50% BY SURFACE REFLECTED
-25% BY PARTICLES AND CLOUDS -5% BY LAND AND SEA -GREENHOUSE GASES TRAP REFLECTED ENERGY BACK TO EARTH

17 ENERGY TRANSFER RADIATION -SUN TO EARTH CONDUCTION -DIRECT CONTACT
CONVECTION -MOVEMENT OF PARTICLES -LATENT HEAT -SURFACE TO ATMOSPHERE

18

19 CIRCULATING AIR AFFECTS WEATHER AND CLIMATE
-COLD AIR SINKS AND PUSHES WARM AIR UP -UNSTABLE  THUNDERSTORMS -STABLE  TEMPERATURE INVERSIONS

20 AIR CURRENTS

21 AIR CURRENTS GLOBAL WINDS -UNEQUAL HEATING OF EARTH GLOBAL WIND BELTS
-AFFECTED BY CORIOLIS EFFECT (EARTH’S ROTATION CAUSES WIND TO APPEAR TO MOVE) -TRADE WINDS -WESTERLIES -POLAR EASTERLIES -JET STREAMS

22

23 AIR CURRENTS LOCAL WINDS -SEA BREEZE -LAND BREEZE

24 REVIEW WHICH DOES NOT AFFECT GLOBAL WIND BELTS? A. AIR PRESSURE
B. LAND BREEZES C. CORIOLIS EFFECT D. SUN

25 AIR QUALITY SOURCES -POINT SOURCE -SMOKESTACKS FROM FACTORIES
-NONPOINT SOURCE -LARGE CITY AIR POLLUTION

26

27 AIR QUALITY CAUSES AND EFFECTS -ACID PRECIPIATION
-DAMAGES WATER SOURCES AND STONE STRUCTURES -SMOG -HARD TO SEE AND BREATHE

28

29 MAINTAIN AIR QUALITY -CLEAN AIR ACT -MONITOR POLLUTION INDOOR AIR POLLUTION -SMOKING, CLEANING PRODUCTS, PESTICIDES, FIREPLACES, INSULATION, RADON


Download ppt "Atmosphere."

Similar presentations


Ads by Google