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local winds: Winds that cover only a small distance

winds blow from H-->L pressure

Atmospheric Pressure:

Current: Gas or liquid that moves in a definite direction. Moves perpendicular to the ground.

the force that air exerts on everything on the earth.

Barometer: instrument used to measure pressure changes

Wind: Moves parallel to the ground.

Conduction, Convection, Radiation

Clouds

Review

Water vapor (warm, rising air) condenses as it reaches higher altitudes

The Transfer of Heat:

moves from a high temperature object to a lower temperature object

3 parts to a cloud:

*dust/other particles

*heat energy

*water

http://www.wisc-online.com/Objects/ViewObject.aspx?ID=sce304

Air takes on temperature of the surface BELOW it

Occluded Front:

both a cold and cool air mass collide with a warm air mass, trapping and lifting the warm air

**clouds with rain/snow

two air masses move close to each other, neither has enough force to move the other, so they remain fixed

*rain, snow, fog or clouds

Fronts:

Different temperature, pressure, and humidity conditions collide

Warm front

Cold Front:

Transpiration: Evaporation of water from plants

warm air mass overrides a cold air mass

**humid dry-rain/snow

dry-scattered clouds

cold air mass pushes a warm air mass ahead of it

*thunderstorms

Why Does the Wind Blow?

Sublimation: Transformation of a solid to a gas

Uneven heating of the Earth's surface

Precipitation: Process of turning a gas into a liquid/solid (snow/rain)

Latent Heat: heat required to change the state of a substance

Evaporation: process that turns liquid to a gas

Does the amount of water in the water cycle change?

Water Cycle

Condensation: process in which water vapor (gas) raises to high altitudes and cools, changing to liquid/ice

Heat: energy that transfers because of temperature difference

Temperature: amount of heat energy in matter

HOW TO PREDICT THE WEATHER?

DOPPLER RADAR-detects how air is moving

(pitch-high=near, pitch-low=farther away.

.

Satellite: Take pictures of the clouds

Ground Weather: thermometers, barometers, etc.

Wind, Temperature, and Wrap Up

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