1. Weather
SOL 6.3 and 6.6

2. Earth’s Energy Budget 30% reflected back into space
70% absorbed by atmosphere, clouds, land, and oceans
Ultraviolet radiant energy is changed to infrared on earth and then radiated back into space.

3. Earth’s Energy Budget

4. Energy Transfers
Radiation brings all of the energy to the Earth from the sun
Convection currents redistribute the energy throughout the atmosphere and the oceans.

5. Currents in the Atmosphere and Oceans
It is currents that redistribute the energy all over the planet that comes from the sun. The average mean temperature is fairly warm because of these currents.

6. Cloud Formation
Water evaporates into vapor, it then rises into the atmosphere. It is much cooler in the upper troposphere so the water vapor condenses forming clouds

7. Types of Clouds Fair now, bad weather in the next 24 hours
Fair Weather Clouds
CIRRUS
Thunderstorm Clouds
Days of rain
Overcast drizzle
Nimbostratus

8. Weather Causes
Weather is caused by the unequal heating of the Earth’s surface.
Warm air rises and cool air sinks
Warm air is high pressure and cold air is low pressure
Low pressure causes some of the worst weather on Earth

11. Atmosphere
The Earth’s atmosphere is 78% nitrogen, 21% oxygen, and the rest trace gases including; argon, carbon dioxide, and water vapor

12. Air Pressure Air pressure is the amount of air pushing down on us
It is measured by a barometer
Low pressure means lousy weather
High pressure means fair weather
Increase in altitude decrease in air pressure

14. Humidity Humidity is the amount of water vapor in the air
The more humid the air is the more uncomfortable you feel
100% humidity is fog
It is measured with a psychrometer or hygrometer
Dew point is the temperature at which the air becomes 100% humid

16. Atmospheric Layers There are 4 layers of the atmosphere
Each is based on temperature
Troposphere is where we live, all weather takes place, and clouds are found
Stratosphere is where the jet stream and the ozone layer is found
Mesosphere is the coldest and stops most meteorites burn up
Thermosphere is the top layer, it is divided into the ionosphere (northern lights) and the exosphere (satellites)

18. Why Protect the Air?

19. Weather Maps

20. Weather Symbols

21. Isobars-connect areas of equal pressure

23. Are you feeling smarter?
Only one more to go!
Yeah right!!!!!!