Movement of air
Terms
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- The movement of air molecules from an area of high presure to an area of low pressure.
- Wind
- ____on earths surface creates areas of different pressure and winds that circulate the air.
- Temparature Differences
- ____is heated more than any other place
- Air above the equator
- What causes the temperature differences?
- The surface is curved,not flat,so not all areas recieve the same amount of radiation.
- Less radiation at the poles->cooler->more dense->sinks->moves along surface. (Convection current emerges)Why is the coriols effect caused?
- Because the earth rotates.
- Air masses moving south in the Northern Hemisphere are turned__from their path.
- Westward
- The flow of air caused by____have caused distinct wind patterns.
- Differences in heating and the coloris effect.
- Wind patterns determine
-
1.)Weather
2.)When and where ships and planes travel efficiently. -
Sailors long ago had to avoid the _______-The windles zone of the equator,seems motionless
-The air is moving straight up.
Why?? - Air at the equator is very hot and not very dense so it rises.
-
-Steady winds here blow southwest.
- these are the trade winds.
-provide route from Europe to America.
-Better place to sail - 15 degress North of the equator
-
These are the ______prevailing westerlies.
-Route from america to Europe.
-These blow from southwest to Northwest
-Winds blow oposite area of trade winds. - Between 30-60 north/south of the equator
- ___is responsible for canadian and U.S weather movements.
- The prevailing Westerlies
-
The last major wind system at the surface.
-These blow from North East to southwest (like trade winds) - Polar Easterlies
- These __,___,__are the major wind systems at the Earths surface.
- trade winds,prevailing westerlies,polar Easterlies
-
hot air___
cold air__- -
Rises
Sinks