Flashcards in Climate Deck (28):
Describe relief/orographic precipitation.
- Warm air rises up windward size of mountain
- Air CCFAR
- As air descends on leeward side of mountain, it is compressed and heated
What is chinock?
The warm, dry air that is associated with the Western Cordillera and the Interior Plains
Describe cyclonic/frontal precipitation
- Warm + cold air meets
- Warm air rises and CCFAR
Where does cyclonic precipitation occur?
Ontario, Quebec, Maritimes, Prairies
Where does relief precipitation occur?
Western Cordillera. Interior Plains
Where does convectional precipitation occur?
Interior Plains, South Ontario, Quebec
Describe convectional precipitation.
- Ground heated by sun
- Air above warm ground rises due to convection
- Air CCFAR
What is the length of growing season?
# of months when average temperature is 6 or more degrees Celsius
What is the length of snowing season?
# of months when average temperature is 0 or less degrees Celsius
What are the factors affecting climate?
Latitude, Ocean currents, Wind + air masses, Elevation, Relief, Nearness to water
Is the Labrador ocean current cold or warm?
Is the Mexican ocean current cold or warm?
Is the Alaskan ocean current cold or warm?
What is a jet stream?
West to east movement of air flowing at speeds of 200 km/h at an altitude of 8000-15 000 m
What is a polar front?
Stormy boundary between cold, dry polar air and warm, moist tropical
What is climate?
Patterns of weather which have occurred over a long period of time (seasons)
It is a ___________ climate if it rains more than 1000 mm each each year and has an average temperature of less than 25 degrees C.
What is weather?
Day to day condition of the atmosphere (temperature, humidity, precipitation, wind speed, cloud cover, air pressure)
What is an air mass?
A large volume of air with the climate conditions of the area where it originates
What are prevailing winds?
Winds that are most commonly found in an area. In Canada, they are the Westerlies, which blow from west to east
What is condensation?
Process whereby water vapour is cooled and changes from an invisible gas to liquid water. Condensed water vapour is what forms clouds
What are the climate regions?
Taiga, Arctic, Boreal, Southeastern, Cordilleran, Atlantic, Pacific, Prairie
What is Canada's coldest climate region?
The temperature and precipitation of ________ climate region varies due to differences in latitude and elevation
The mountains of BC are responsible for the little amount of rain in __________ climate region
_________ climate region experiences cold winters for at least 6 months each year
_____ climate region receives the least amount of precipitation in Canada