Presentation on theme: "The Climates of Canada What creates different climates in Canada and what impact does climate have on human activity?"— Presentation transcript:
The Climates of Canada What creates different climates in Canada and what impact does climate have on human activity?
Weather: the state of the atmosphere at any given moment in time CLIMATE: the temperatures, humidity, precipitation and atmospheric conditions of a region over long periods of times.
Do you know What was the lowest recorded temperature in Canada? 2. The highest recorded temperature in Canada? Answers: degrees in Yukon in degrees in Saskatchewan in 1937
Climate Regions of Canada
Six Factors Affecting Climate 1. Latitude 2. Altitude 3. Distance from the Sea 4. Wind Direction 5. Ocean Currents 6. Precipitation
Latitude Lines extending 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
Altitude The higher the altitude, the colder the temperature 150m rise in altitude = 1 degree drop in temperature
Distance from the Sea the surface of land heats and cools more quickly than water
Distance from the Sea The surface of land heats and cools more quickly then the surface of water large landmasses can vary between temperature extremes Summer and winter temperatures on the West Coast are moderated by the water
Wind Direction Depending on their point of origin, winds can warm or cool the temperature
Wind Direction In Canada, prevailing winds (those that usually come from one direction) most often come from the west, or from the north West Coast communities are unique in Canada with winter temperatures above freezing. They have the mildest winter temperatures as a result of warm westerly winds coming off the ocean.
Ocean Currents affect temperature by warming or cooling the air
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 West Coast has a mild, wet climate
Precipitation = drizzle, showers, heavy rain, hail, snow, or fog - all have an impact on the location they fall
Precipitation the amount of precipitation a location receives depends on its distance from the sea and the prevailing winds Western Canada experience three types: orographic, convection, and frontal