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Climat and Weather
Terms in this set (31)
This is a description of atmosphere conditions from day to day.
This is the pattern of weather conditions over a long period of time.
Latitude, Air Masses and Winds, Ocean Currents, Clouds and Precipitation
The earth's "controls" that result in different types of weather and climate. There are 4 global factors:
Farther from the equator the average monthly temperature decreases.
air masses and winds
These are large bodies of air with a few predictable atmospheric features.
They move toward Canada and influence our weather and climate.
warm water makes the air warm and moist (warm moist summer air from the south)
cold water makes the air cold
cold land makes the air cold and dry (cold, dry winter air from the north)
desert makes the air hot and dry
They generally blow from west to east across Canada (from B.C. to N.L)
is a high (8,000 - 15,000m), fast (300 - 400 km/h) wind
They move immense amounts of heat and cold around the world.
Air passing over it is influenced by its characteristic temperature.
ocean current affect Canadian climate
east coast current
A. Labrador Current (cold)
B. Gulf Stream Current (warm)
west coast currents
A. Alaska Current (cold)
B. North Pacific Current (warm)
When warm air, carrying water vapour, rises, cools, and releases the vapour
3 types of precipitation
A. Frontal Precipitation
B. Convectional Precipitation
C. Relief or Orographic Precipitation
cold frontal precipitation
The leading edge of an air mass and a cold front arrives forcing the warm air upward.
warm frontal precipitation
You are located in an area with a cold air mass.
A warm front arrives and rises up over the cold air.
The leading edge of an air mass
Sunlight heats a point on the earth surface.
Warm air, over this hot spot, rises.
Wind forces warm air to rise up over a mountain.
This air cools, clouds form, and precipitation begins.
Canada has 4 climate zones
Zone B, C, D, and E
It is located in southern Alberta and Saskatchewan. Here the climate is dry.
This zone is found along the coast of British Columbia (including Vancouver Island).
The climate is warm and moist.
This is the largest climate zone in Canada - over 70%.
The climate is cool and moist.
Most of this zone has precipitation throughout the year.
It is the second largest climate zone in Canada - about 25%.
It's located in the far north of Canada.
Here the climate very cold and dry.
regional factors that affect climate
A. Altitude (elevation)
B. Bodies of Water
C. Mountain Barriers
As altitude increases the air temperature decreases.
Places with higher elevation are colder.
bodies of water
Summer sunshine heats up land quickly and heats up water slowly..
In winter, land cools off quickly but water cools off slowly.
In Canada, almost all precipitation falls on the western slopes of large mountain chains.
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