World Geography

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• World Geography
• Chapter 3 Section 1

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• I. Seasons - caused by the earth's tilt (23.5
  degrees).
• A. Revolution - earth's movement around the sun.
  (365 1/4 days)

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Revolution
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• B. Rotation - earth spinning on its axis. (24
  hours)

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(No Transcript)
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• C. Solstice - June 21 and December 21
• - (exact dates vary slightly)
• 1. The direct rays of the sun are at the
  tropics
• - June 21st Tropic of Cancer
• - December 21st Tropic of Capricorn

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June 21st
Summer
Winter
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December 21st
Winter
Summer
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• 2. The solstice provides the longest and
  shortest amounts of - daylight and darkness.
• 3. The Solstice is the beginning of summer and
  winter.

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• D. Equinox - March 21 and September 22.
• - (exact dates vary slightly)
• 1. The direct rays of the sun at the - equator

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March 21st or September 22nd
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• 2. Equal amounts of - daylight and darkness.
• 3. The equinox is the beginning of Spring and
  Fall.

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• II. Weather - atmospheric condition at any given
  moment.

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• A. Causes of weather
• 1. water vapor
• 2. clouds
• 3. landforms
• 4. bodies of water
• 5. elevation
• 6. air movement

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• B. Types of Precipitation
• 1. Convectional - caused by the heating of moist
  air.

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• 2. Orographic - rain caused by mountain barriers.
• - Rain shadow effect mountain barriers cast a
  shadow where it does not rain.

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http//en.wikipedia.org/wiki/ImageSteigungsregen.
jpg
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http//www.pbs.org/wgbh/nova/kilimanjaro/weather.h
tml
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http//www.pbs.org/wgbh/nova/kilimanjaro/weather.h
tml
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http//www.pbs.org/wgbh/nova/kilimanjaro/weather.h
tml
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http//www.pbs.org/wgbh/nova/kilimanjaro/weather.h
tml
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http//www.pbs.org/wgbh/nova/kilimanjaro/weather.h
tml
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http//www.pbs.org/wgbh/nova/kilimanjaro/weather.h
tml
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http//wufs.wustl.edu/pathfinder/path301/301pres_0
4_05/CE-Zab-Hawaii20Climate20part202.ppt
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http//wufs.wustl.edu/pathfinder/path301/301pres_0
4_05/CE-Zab-Hawaii20Climate20part202.ppt
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http//wufs.wustl.edu/pathfinder/path301/301pres_0
4_05/CE-Zab-Hawaii20Climate20part202.ppt
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Orographic Rainfall
Rain Shadow
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• 3. Frontal - caused when a cold front meets with
  a warm front.

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• 4. We see precipitation as
• a. rain
• b. snow
• c. sleet
• d. hail

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• 5. We see condensation as
• a. fog
• b. dew
• c. clouds

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• C. Weather Extremes
• 1. Hurricanes
• 2. Tornado
• 3. blizzard
• 4. drought
• 5. flood