air movement chapter 4 – section 3 pages 103 - 107
TRANSCRIPT
![Page 1: Air Movement Chapter 4 – Section 3 Pages 103 - 107](https://reader036.vdocument.in/reader036/viewer/2022081514/56649f0b5503460f94c1eeca/html5/thumbnails/1.jpg)
Air MovementChapter 4 – Section 3
Pages 103 - 107
![Page 2: Air Movement Chapter 4 – Section 3 Pages 103 - 107](https://reader036.vdocument.in/reader036/viewer/2022081514/56649f0b5503460f94c1eeca/html5/thumbnails/2.jpg)
WindThe movement of air from an area of high pressure (more dense) to an area of low pressure (less dense)
![Page 3: Air Movement Chapter 4 – Section 3 Pages 103 - 107](https://reader036.vdocument.in/reader036/viewer/2022081514/56649f0b5503460f94c1eeca/html5/thumbnails/3.jpg)
Global Winds
Wind current on a global scale.
![Page 4: Air Movement Chapter 4 – Section 3 Pages 103 - 107](https://reader036.vdocument.in/reader036/viewer/2022081514/56649f0b5503460f94c1eeca/html5/thumbnails/4.jpg)
Global Temperature Patterns
The sun’s rays are stronger near the equator causing more warming. The air here is warm.
Warm air rises
The sun’s rays are weaker near the poles causing less warming. The air here is cool.
Cool air sinks.
![Page 5: Air Movement Chapter 4 – Section 3 Pages 103 - 107](https://reader036.vdocument.in/reader036/viewer/2022081514/56649f0b5503460f94c1eeca/html5/thumbnails/5.jpg)
Global Winds
Hadley Cells.
![Page 6: Air Movement Chapter 4 – Section 3 Pages 103 - 107](https://reader036.vdocument.in/reader036/viewer/2022081514/56649f0b5503460f94c1eeca/html5/thumbnails/6.jpg)
Mr. Fetch’s Earth Science Classroom
The Coriolis Effect
![Page 7: Air Movement Chapter 4 – Section 3 Pages 103 - 107](https://reader036.vdocument.in/reader036/viewer/2022081514/56649f0b5503460f94c1eeca/html5/thumbnails/7.jpg)
Global Winds
60°S
30°S
0°
30°N
60°N
Prevailing Westerlies- From 30°N to 60°N- Deflected to rightEasterly Trade Winds- From 30°N to O°- Deflected to right
Polar Easterlies- From 90°N to 60°N- Deflected to right
Polar Easterlies- From 90°N to 60°N- Deflected to right
Easterly Trade Winds- From 30°S to 0°- Deflected to leftPrevailing
Westerlies- From 30°S to 60°S- Deflected to leftPolar Easterlies
- From 90°S to 60°S- Deflected to left
Doldrums
Remember, winds are named from where they come.
![Page 8: Air Movement Chapter 4 – Section 3 Pages 103 - 107](https://reader036.vdocument.in/reader036/viewer/2022081514/56649f0b5503460f94c1eeca/html5/thumbnails/8.jpg)
DoldrumsLow Pressure Zone (warm, less dense air)
along the equatorHeated air expands creating a zone of low pressure
Very little windRains nearly every afternoon
![Page 9: Air Movement Chapter 4 – Section 3 Pages 103 - 107](https://reader036.vdocument.in/reader036/viewer/2022081514/56649f0b5503460f94c1eeca/html5/thumbnails/9.jpg)
Polar Easterlies
90˚ - 60˚ latitude Winds move east to west Winds rise at 60˚ latitude and sink
at the poles Bring us the cold polar air
![Page 10: Air Movement Chapter 4 – Section 3 Pages 103 - 107](https://reader036.vdocument.in/reader036/viewer/2022081514/56649f0b5503460f94c1eeca/html5/thumbnails/10.jpg)
Prevailing Westerlies
60˚ - 30˚ latitude Winds move west to east Winds rise at 60˚ and sink at 30˚
Move weather systems across the
United States
![Page 11: Air Movement Chapter 4 – Section 3 Pages 103 - 107](https://reader036.vdocument.in/reader036/viewer/2022081514/56649f0b5503460f94c1eeca/html5/thumbnails/11.jpg)
Easterly Trade Winds
0˚ - 30˚ latitude Winds move east to west Winds rise at the equator and sink at 30˚ Early sailors used winds to navigate trade routes
![Page 12: Air Movement Chapter 4 – Section 3 Pages 103 - 107](https://reader036.vdocument.in/reader036/viewer/2022081514/56649f0b5503460f94c1eeca/html5/thumbnails/12.jpg)
JetstreamsNarrow belts of strong winds near the
top of the troposphereWinds move west to east - faster in
winterForm between cold dry air and warm
moist airProduce large weather systemsJets fly faster when flying with Jet
Stream
![Page 13: Air Movement Chapter 4 – Section 3 Pages 103 - 107](https://reader036.vdocument.in/reader036/viewer/2022081514/56649f0b5503460f94c1eeca/html5/thumbnails/13.jpg)
Jet Stream
![Page 14: Air Movement Chapter 4 – Section 3 Pages 103 - 107](https://reader036.vdocument.in/reader036/viewer/2022081514/56649f0b5503460f94c1eeca/html5/thumbnails/14.jpg)
Sea BreezeConvection current of air created during the day from the sea to land
Land warms faster than the sea. Warm, less dense air over land rises; cooler, more dense air over sea sinks, creating a cool breeze to blow in from the sea
![Page 15: Air Movement Chapter 4 – Section 3 Pages 103 - 107](https://reader036.vdocument.in/reader036/viewer/2022081514/56649f0b5503460f94c1eeca/html5/thumbnails/15.jpg)
Sea Breeze
![Page 16: Air Movement Chapter 4 – Section 3 Pages 103 - 107](https://reader036.vdocument.in/reader036/viewer/2022081514/56649f0b5503460f94c1eeca/html5/thumbnails/16.jpg)
Land BreezeConvection current of air created at night from the land to sea
Land cools faster than the sea. Cooler, more dense air over sinks and moves towards the sea; warmer air over the sea rises, creating a breeze from land to sea
![Page 17: Air Movement Chapter 4 – Section 3 Pages 103 - 107](https://reader036.vdocument.in/reader036/viewer/2022081514/56649f0b5503460f94c1eeca/html5/thumbnails/17.jpg)
Land Breeze