3 Climate v. Weather Climate Weather Term for weather patterns that an area typically experiences over timeCondition of the atmosphere in one place during a limited period of time.
4 Earth Tilt and Rotation Earth also rotates on an axis1 rotation ever 24 hoursRotates West to East, turns one hemisphere then the other toward the sun, alternating them between the light of day and the dark of night.Axis- imaginary line running from the north pole to the south through the planets centerBecause of the tilt, not all places on the earth receive the same amount of direct sun light at the same time.The tilt affects the temperatureHow hot or cold a place is.Measured in degrees on a set scaleMore sunlight= higher tempsLess Sunlight = Colder temps
6 RevolutionThe earth takes 1 revolution, or trip around the sun, every 365 daysRevolution + Tilt = changes in angle and the amount of sun that reaches places of the EarthSeasonsSeasons are reversed North and South of the EquatorEquinox- day where daylight and nighttime hours are equal. Around March 21st
7 Tropics of Cancer and Capricorn Tropic of Cancer- Northern most point of the earthWhen the sun directly hits the Tropic of Cancer the north experiences its longest days of the summer = Summer SolsticeTropic of Capricorn- Southern most pointWhen the sun is directly on the Tropic of Capricorn it marks the shortest days in the North = Winter Solstice
8 The PolesThe most dramatic variation of the amounts of sunlight happen at the polesThe pole angled toward the sun receives constant sunlight while the pole angled away receives little to no sunlightNorth Pole- March 20- September 23rd is constant day light, while the south has noneSouth Pole-September23-March 20th Constant day light, while the north has none
9 Greenhouse EffectsOnly part of the sun’s radiation passes through the earth’s atmosphere while the rest is reflected back into spaceThe radiation that makes it through warms the earth and water.The earth acts like a greenhouse because it traps some of the sun’s energy from escaping the earth to quicklythis helps w/ growing plants, even in cold weather.With out this earth would be too cold for most living things
11 Greenhouse Effect If too much heat escapes, plants will freeze If too much heat is trapped, plants will wilt and dry outThis is similar to how the earth works
12 Global WarmingBelief that a rise in global temperatures has occurred due to human activityExamples: burning of coal, oil, and natural gasFossil fuels release carbon dioxide, a greenhouse gas, in the atmosphere that traps more heat
14 As latitude ________, the average annual temperature _________. How does latitudeaffect climate?As latitude ________, the averageannual temperature _________.increasesdecreasesTemperature0° Latitude °
15 Water __________ the temperature. _______ summers. _______ winters. How does closeness to a largebody of water affect climate?Water __________ the temperature._______ summers. _______ winters.moderatesCoolerWarmerCities A & B are locatedat the same latitude.City B is closer to a large body of water.Its temperature line is flatter (moderated).
16 Windward Side: ___________ Leeward Side: _____________ How does theOrographic Effectaffect climate?Windward Side: ___________Leeward Side: _____________cool, moistwarm, dry
18 As elevation _________, the average annual temperature __________. How does elevationaffect climate?As elevation _________, the averageannual temperature __________.increasesdecreasesTemperatureElevation
19 Warm Currents: warmer climate Cold Currents: cooler climate How do ocean currentsaffect climate?Warm Currents: warmer climateCold Currents: cooler climate
22 Tropical Climate: Wet Hot and wet Average temperature of 80 degrees About 80 in. of rain yearlyNutrient rich soilAbundant wildlifeRain forests, example: Amazon River basinAreas with this climate: South America, Caribbean, Asia, Africa
23 Tropical Climate: Dry Dry winters, wet summers High year-round temperaturesFewer trees: SavannasAreas with this climate: Africa, Central America, South America, Asia, and AustraliaSparse Plants: Deserts
24 Dry Climate Desert: Steppes: Sparse plant life Rainfall less than 10 inches1/3 of Earth’s total landSahara is 1/3 of the African ContinentSteppes:Border desertsTreeless grasslands10 to 20 inches of rain yearlyFound in North America, South America, Africa, and Australia