Climate Regions
What is Climate? Weather is the day-to-day changes in  atmospheric conditions Climate is long-term weather conditions T...
What aspects of the environment areinfluenced by climate?     Vegetation     Animal life     Soils     Landforms     ...
Ecosystems What is an ecosystem? An area of interaction between plants,  animals,and their environment Unique ecosystem...
Does Climate Repeat Itself? Koppen’s Climate Region Map
Can we make any generalizations? Latitude      Single most important factor-Why? Maritime      versus continental locat...
Greek’s Climate RegionsLatitude       Frigid              Temperate               Torrid              Temperate           ...
Maritime and Continental Climates                                 Continental climates are                                ...
Herbertson’s Climate Regions
Pressure and Wind BeltsWhat is the climate of each of these pressure and wind belts?                                      ...
What happens to all these pressureand wind belts? They shift north and south with the overhead  sun Do they shift as far...
Where in the World is it Raining Today ?        The world’s rainy places coincide with            global pressure and wind...
Three Major Rain Belts The Northern Hemisphere Polar Front     Midlatitude Cyclonic Storms - low pressure The Intertrop...
Animation Showing Monthly Rainfall
Mean Annual PrecipitationSTH         STH            STH         STH      STH
Africa’s Climate Regions     Tropic of Cancer    Equator
North America Climates
Koppen’s Climate Classification Most widely used map of climate regions Empirical-quantitative approach that uses climat...
Koppen’s Climate Regions
Koppen Classification (A) Tropical rainy climates     Every month over 64.4 F (B) Dry climates     Evaporation exceeds...
Koppen Classification (C) Mild, humid climates     Coldest month below 64.4 F but above 26.6 F (D) Snowy-forest climate...
Why is the Bay Area rainy inwinter and dry in summer? The jet stream and the Polar Front move into  the Bay Area in winte...
Global Regions of Mediterranean and Marinewest-coast “C” climates.Mediterranean Climate Zones: West coasts ~30-40° Latitude
Global Regions of Moist Subtropical Climate                             East coasts ~25-35°                             La...
East vs. West Coast ClimatesMediterranean Climate in    Moist subtropical climate inMonterey, CA                Charleston...
West Coast Precipitation                           Dry summer wet                           winter ~30-40°                ...
Reality Check Most climates between the    tropics of Cancer and           Does the U.S. have any A    Capricorn are:   ...
Berkeley and San Jose ClimographsAnnual rainfall – 22.3 inches   Annual rainfall – 14.6 inches
Review Questions     1. What do clouds need in addition to saturation?             Cloud condensation nuclei     2. Consid...
CPrevailing winds                                 A             B Ocean                                           rain sha...
What is the cause of the seasons? Tilt of earth’s axis as it orbits the sun Revolution Parallelism
climate regions
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  • How many climate groups use temperature as a basis for classification? A, C, D, and E. B uses evaporation over precipitation. WHIch climate is not in the southern hemisphere?
  • How many climate groups use temperature as a basis for classification? A, C, D, and E. B uses evaporation over precipitation. WHIch climate is not in the southern hemisphere?
  • To be presented 11/5/02
  • climate regions

    1. 1. Climate Regions
    2. 2. What is Climate? Weather is the day-to-day changes in atmospheric conditions Climate is long-term weather conditions Temperature and precipitation are the most important expressions of climate
    3. 3. What aspects of the environment areinfluenced by climate?  Vegetation  Animal life  Soils  Landforms  Water resources
    4. 4. Ecosystems What is an ecosystem? An area of interaction between plants, animals,and their environment Unique ecosystems evolve as a result of differing climate conditions Climatology studies the climate regions that have evolved in response to different moisture and temperature conditions
    5. 5. Does Climate Repeat Itself? Koppen’s Climate Region Map
    6. 6. Can we make any generalizations? Latitude  Single most important factor-Why? Maritime versus continental locations Windward coasts have cooler summers and warmer winters Precipitation related to pressure and wind belts High pressure – dry, Converging winds - rainy Mountains have different climates  Mountains are cooler than lowlands
    7. 7. Greek’s Climate RegionsLatitude Frigid Temperate Torrid Temperate Frigid
    8. 8. Maritime and Continental Climates Continental climates are under the influence of winds from the continental interior Crescent City New York Maritime climates are Chicago under the influence of Continental westerly winds climate dominated by continentalCold California temperaturesCurrent bringscoolertemperatures to thecoast in summer
    9. 9. Herbertson’s Climate Regions
    10. 10. Pressure and Wind BeltsWhat is the climate of each of these pressure and wind belts?  Polar High  Polar Easterlies  Polar Front  Westerlies  Subtropical High  N E Trade Winds  Intertropical Convergence Zone  SE Trades
    11. 11. What happens to all these pressureand wind belts? They shift north and south with the overhead sun Do they shift as far north and south as the Tropics of Cancer and Capricorn? No, about 5º N and 5º S
    12. 12. Where in the World is it Raining Today ? The world’s rainy places coincide with global pressure and wind belts
    13. 13. Three Major Rain Belts The Northern Hemisphere Polar Front  Midlatitude Cyclonic Storms - low pressure The Intertropical Convergence Zone (ITCZ)  Trade winds converge along the equatorial low  Convectional lifting produces cumulus clouds The Southern Hemisphere Polar Front  Midlatitude Cyclonic Storms - low pressure
    14. 14. Animation Showing Monthly Rainfall
    15. 15. Mean Annual PrecipitationSTH STH STH STH STH
    16. 16. Africa’s Climate Regions Tropic of Cancer Equator
    17. 17. North America Climates
    18. 18. Koppen’s Climate Classification Most widely used map of climate regions Empirical-quantitative approach that uses climate statistics compiled over 30 years Designed with plants in mind Each climate is defined according to set values of mean monthly precipitation and mean monthy temperature
    19. 19. Koppen’s Climate Regions
    20. 20. Koppen Classification (A) Tropical rainy climates  Every month over 64.4 F (B) Dry climates  Evaporation exceeds precipitation
    21. 21. Koppen Classification (C) Mild, humid climates  Coldest month below 64.4 F but above 26.6 F (D) Snowy-forest climates  Coldest month below 26.6 F but warmest month over 50F (E) Polar climates  Warmest month below 50 F
    22. 22. Why is the Bay Area rainy inwinter and dry in summer? The jet stream and the Polar Front move into the Bay Area in winter The Subtropical High dominates our weather in Summer
    23. 23. Global Regions of Mediterranean and Marinewest-coast “C” climates.Mediterranean Climate Zones: West coasts ~30-40° Latitude
    24. 24. Global Regions of Moist Subtropical Climate East coasts ~25-35° Latitude.
    25. 25. East vs. West Coast ClimatesMediterranean Climate in Moist subtropical climate inMonterey, CA Charleston, South Carolina.
    26. 26. West Coast Precipitation Dry summer wet winter ~30-40° Dry all year ~20-30° Dry summer wet winter ~30-40°
    27. 27. Reality Check Most climates between the tropics of Cancer and  Does the U.S. have any A Capricorn are: (tropical moist) climates? Which major climate group is  Does the U.S. have a BWh (hot not in the Southern desert)? hemisphere?  What major climate group Which major group forms the dominates Canada and cold summer climates of the Russia? Arctic?  What climate makes up most of Which climates are dry? Western Europe? What climate dominates  What climate is not classified Australia? using Koppen?
    28. 28. Berkeley and San Jose ClimographsAnnual rainfall – 22.3 inches Annual rainfall – 14.6 inches
    29. 29. Review Questions 1. What do clouds need in addition to saturation? Cloud condensation nuclei 2. Consider the topographic profile diagrammed below. CPrevailing winds A B Ocean This would induce what “type” of lifting? What is the process that causes condensation? How would the amount of precipitation at A, B, and C compare?
    30. 30. CPrevailing winds A B Ocean rain shadow Point B above is said to be in the ________________ of the mountain shown. What type of local wind is commonly experienced at B? Is it a hot or cold wind? Chinook wind. It’s a hot wind.
    31. 31. What is the cause of the seasons? Tilt of earth’s axis as it orbits the sun Revolution Parallelism

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