3 Earths TiltAs the earth revolves around the sun it is tilted at 23.5 degreesBecause of the earth’s revolution and tilt direct sunlight hits the earth differently at different parts causing changing seasons on the earth
4 The Tropic of Cancer and Tropic of Capricorn Mark points farthest north and south that the sun’s rays shine directly overhead at noonThe day on which this occurs is called a solstice
5 In the Northern Hemisphere the summer solstice begins summer, the longest day of the year. The winter solstice begins winter the shortest day of the yearWinter Solstice in Northern HemisphereSummer Solstice in Northern Hemisphere
6 Equinox This is another sign of changing seasons Occurs 2 times a year when the days and nights all over the world are equal in length.Marks the beginning of Spring and AutumnEquinox
8 Convectional: Typical of hot climate (Tropical) Occurs after morning sunshine heats warm moist air.Clouds form in the afternoon and rain fallsClouds forming over the Florida peninsula.What time of day do you think this picture was taken?
9 Orographic: Associated with mountain areas Mountains block the passage of air and cause it to riseStorms drop more rain on the windward side and create a rain shadow on the leeward side because it gets little rain from the descending dry airMoist air rises and cools on windward side of mountainsCondensation occurs and precipitation resultsDrier air descends down the mountains and warmsLeeward side of mountain range has rain shadow desertMT RANGEWINDWARD SIDELEEWARD SIDEIn which part of the United States will you find orographic precipitation?Where is the rain shadow?
10 Mount Waialeale on the island of Kauai in Hawaii has the greatest annual average of precipitation (486” per year or 40. feet).The backside (leeward) side of the mountain gets only 20” of rainfallper year.
11 Cherrapunjee (on the south side of The Himalayas) holds the all-timerecord for precipitation in one year.
12 Frontal: Mid-latitude frontal storms Cold, dense air pushes warm, light air upward causing precipitation to form
13 LandformsLandmasses heat and cool relatively quickly; there are wider temperature ranges in the interior of large landmasses.
14 Large Bodies of WaterWater heats and cools more slowly than adjacent landmasses, so it moderates temperatures there. (It doesn’t get as cold or as hot.)
16 ElevationAs elevation increases above sea level, temperature decreases. (Compare the current temperature in Mexico City to that of Austin?)The air cools and becomes thinner and loses its ability to hold moisture.
17 Air Movement winds move air and moisture As a result weather can change very rapidly