Latitude and Longitude

1
Latitude and Longitudeand Climate
Objective Identify characteristics of the
physical world and how it affects cultural
patterns
2
Seasons

• Caused by earths tilt and revolution around sun
• Earth tilted at 23.5 degrees in relation to sun

• http//www.videojug.com/film/why-does-the-earth-ha
  ve-seasons

3
Equinox

• Twice a year, Mar 21/Sept 23
• Days and nights all over the world are equal in
  length

4
Solstice

• Summer-Longest Day of Year
• Winter-Shortest Day of Year

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Midnight Sun-Norway
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Polar Night- Mid-afternoon
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Weather vs. Climate

• Weather-condition of atmosphere at a particular
  location and time
• Climate-weather conditions at a particular
  location over a long period of time

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Climate-Zones of Latitude

• Low/Tropical-Tropic of Cancer to Tropic of
  Capricorn, hot all year long, rainy or dry
• Middle/Temperate-between tropics and polar
  regions, climate varies greatly
• High/Polar- encircle North and South Poles, cold
  all year long

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Discussion

• What zone do most people live in? Why?
• Which zone experiences the greatest change of
  daylight hours? Why?
• Which zone experiences the least change of
  daylight hours? Why?
• Which zone experiences the greatest seasonal
  variation in temperature? Why?

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Global Warming

• Air temperature is rising
• Increased 1 degree in last 100 years
• Greenhouse effect-layer of gases released by
  burning of coal and petroleum traps solar energy

http//earth.rice.edu/mtpe/atmo/atmosphere/hot/ano
m_99/Greenhouse_Effect.mov
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Precipitation

• Convectional-caused by heated, rising air
• Orographic-mountains block moist air forcing it
  to rise
• Frontal-occurs when cold fronts push up warm
  fronts.

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Hurricanes (Typhoons)

• Form over warm, tropical ocean waters
• Hurricanes typically blow west.

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Tornado

• Powerful funnel-shaped column of spiraling air
• Form quickly and without warning

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Blizzard

• Heavy snowstorm with winds of more than 35 mph
  and reduced visibility

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Drought/Flood

• Drought-Long period of time without rain or very
  minimal rainfall
• Flood-water spreads over land not normally
  covered with water

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Climate-Wind Currents

• Distributes suns heat from one part of the world
  to another through convection

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Climate-Ocean Currents

• Like rivers flowing in ocean
• Warm water flows from equator toward poles

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Elevation

• Highercolder
• Every 1000 ft. temperature drops 3.5 degrees

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Topography

• Landforms affect climate
• Mountains
• Temperature
• Precipitation

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El Nino/La Nina

• Warming of the waters off the west coast of South
  America
• Natural change in climate
• Brings heavy rains to Americas
• La Nina is reverse-it brings heavy rain to
  western Pacific