Prepare yourself to prove your understanding of Solstices, Equinoxes, and Four Spheres

Prepare yourself to prove your understanding of Solstices, Equinoxes, and Four Spheres(if you werent here yesterday, you wont be held responsible for the Four Spheres).Label Pages 18 and 19 in your ISNs, Factors Affecting ClimateUnderstand the difference between weather and climate.Understand how LACEMOPS affect climateWhats the difference?Weather: the daily condition of the atmosphere which includes temperature and precipitation. (think: weather or not to wear a coat today).Climate: average weather over an extended period of time.Precipitation: Moisture that falls from the sky (rain, snow, sleet, hail)Factors Affecting CLimateLatitudeAir MassesContinentalityElevationMountain BarriersOcean CurrentsPressure and Prevailing WindsStormsLACEMOPS: LatitudeThe most important factor.Low latitude: high temperature.Middle latitude: temperateHigh latitude: low temperature

LACEMOPS: Air MassesCold air from the polar regions, warm air from the tropics.Air takes on the characteristics of the land or water it passes over.

LACEMOPS: ContinentalityWater moderates climate.Water takes longer to cool/heat than land.Farther inland = winter & summer extremes.

LACEMOPS: ElevationThe higher the elevation, the colder and drier the air.Think: peaks of mountains have snow.

LACEMOPS: Warm UpEach member of your table pick one of the four factors affecting climate youve learned so far (LACE)On your whiteboard, write a small paragraph explaining that factor as if your audience was a third grader. Use pictures if you want.You might be picked to share your answer with the class.LACEMOPS: Mountain BarriersMountains stop storms & air massesOrographic effect:Windward side gets precipitation.Leeward side is dry.Dry side is called a rain shadow.

cool / wet aircool / wet airo c e a nOrographic EffectmountainVERY cold airwarm / dry airdesertWindward sideLeeward sideRain Shadow#s 3 and 4 can be explained using this slide and the next slide.

11LACEMOPS: Ocean CurrentsMove heat back and forth between the tropics and the polar regions.

LACEMOPS: Pressure & Prevailing WindsHigh pressure comes from heavy, cold air; low pressure from warm, light airHILOPrevailing winds:Trade winds (EW)Westerlies (WE)Doldrums (calm areas around equator)

LACEMOPS: StormsWhere cold & hot air masses collide, there are storms.Where Westerlies meet polar winds, there are storms.N. Hemi: counter-clockwiseS. Hemi: clockwise

LACEMOPS: StormsTypes of storms:Tornadoes: form quickly; relatively small diameter; usually in middle latitudesHurricanes: ocean storms that cover large areas and take days to formTyphoon: hurricanes in the western Pacific Ocean

Warm Up: Greenhouse Effect and Global WarmingTitle Pages 24 and 25 in your ISN: Greenhouse Effect and Global Warming.Use p. 41 of your book to define greenhouse effect and global warmingWrite your groups Climate Regions (from yesterday) on the board. Copy those of other groups, finishing your CR Chart.Greenhouse effect:

Greenhouse Effect:Caused by greenhouse gases:Water Vapor (up to 79%)Carbon Dioxide (up to 26%)Methane (up to 9%)Ozone (up to 7%)Burning fossil fuels causes more CO2 in the air.Evidence from ice core samples shows a distinct increase in greenhouse gasses in the atmosphere since the mid 20th century.

Case Study: The PolesRead pages 58-59 in your textbook. Also look at the satellite images on p. 77 and the atlas p. 31.Make a Venn Diagram comparing and contrasting the North Pole and Antarctica (top of 25 in your ISN, below warm up).Answer the questions on the board thoroughly and in complete sentences (page 25 in your ISN).