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Climates Of Western Canada
 

Climates Of Western Canada

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    Climates Of Western Canada Climates Of Western Canada Presentation Transcript

    • Geography of The Climates of Western Canada Western Canada
    • What can temperature and precipitation information tell us about the way people live in different locations?
    • Weather: • The state of the atmosphere at any given moment in time • Temperature, atmospheric pressure, wind, humidity, precipitation, and cloudiness Climate: • the average of weather conditions for a given location over a period of time
    • Six Factors Affecting Temperature 1. Latitude 2. Altitude 3. Distance from the sea 4. Wind direction 5. Ocean currents 6. Precipitation
    • Latitude Lines extend east and west around the earth and measure the distance north and south of the Equator (0 degrees)
    • Latitude • Because the earth is tilted on its axis, the sun heats it unevenly • Areas closest to the equator (tropical and subtropical zones) get more direct sunlight all year • Areas farther from the equator (temperate and polar zones) get less direct sunlight • The number of hours of sunlight per day changes a great deal throughout the year
    • Latitude
    • Altitude • The higher the altitude, the colder the temperature • 150 m rise in altitude = 1 degree drop in temperature
    • Distance from the Sea • The surface of land heats and cools more quickly then the surface of water • Large land masses can vary between temperature extremes • Summer and winter temperatures on the West Coast are moderated by the water
    • Wind Direction • Winds blowing from the ocean increase the moderating effect of water • The reverse is true of winds blowing off land • In Western Canada, the prevailing winds blow most often from the west, or from the north • West Coast communities are unique in Canada with winter temperatures above freezing
    • Ocean Currents • Ocean currents are either warm or cold, depending on their origin • Affect temperature of land by warming or heating the air blowing over them • Warm air can hold more water than cold air; this is why the West Coast has a mild, wet climate
    • Precipitation • The amount of precipitation a location receives depends on its distance from the sea and the prevailing winds • Precipitation = drizzle, showers, heavy rain, hail, or snow — all have an impact on the location they fall • Western Canada experience three types: orographic, convectional, and frontal