Shared Flashcard Set

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Ecozones
studying for test
34
Geography
9th Grade
11/06/2012

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Cards

Term
What is Weathering?
Definition
The day-to-day charachteristics of local atmospheric conditions.
Term
What is Climate?
Definition
Long term pattern of weather. Weather records are kept over long periods of time to inform us about climate.
Term
How can weather affect our lives?
Definition
  1. Raining out a baseball game
  2. A snowstorm can cancel school
  3. Fresh snow makes excellent conditions for skiing
Term
How does Latitude come in with weathering?
Definition
Latitude places closer to the equator, experenice warmer tempetures than places further away from the equator.
Term
How does sun rays effect the earth?
Definition
The sun rays that strike the earth closer to the equator care concentrated, however due to the curvature of the earth, solar rays that strike the earth further away are more spread out.
Term
What is Moderating Effect of water
Definition

Water heats up and cools down more slowly than land. In summer large bodies of water will be cooler than the land. Winds blowing off the water will have a cooling effect on the adjecent land.

Similary, the same thing happends in water, except the water is warmer and will have a warming effect on adjacent land. This is why Maritime locations have mild climates. (cooler summers and warmer winters) 

Term
What is Ocean Currents?
Definition
The tempeture of an Ocean current affects the tempeture of the air that passes over it. One the west coast we have the cold labrador current and warm Gulf stream. The Gulf stream moderates the climate of Nova Scotia, and Southern New Foundland and Labrador.
Term
What is Prevailling Winds?
Definition
Moving air couses winds around the earth there are high and low pressure bets. The prevailing winds in North America are west, to east called westerlies. These prevailing winds have a strong influence on weather patterns.
Term
What happends when the Labrador Current and the Gulf stream comes together?
Definition
When the Labrador current and gulf stream comes together this creates clamp and foggy conditions making it difficult to navigate ships.
Term
WHat is the Polar Jet Stream?
Definition
Is a current of air at high altitude which moves from west to east(300-500Km/h). This current acts as a boundry between cold artic air and warm gulf air. In the winter the polar jet stream shifts south bringing cooler air to the united states. In the summer it shifts north, bringing warm gulf air to canada.
Term
What are some examples or precipitaion?
Definition
  1. Rain
  2. Snow
  3. Hail
  4. Sleet
Term
why does Precipitation occur?
Definition
One air cools as it rises. Two as air cools, water vapour condenses more than it evaporates
Term
Why does air rises?
Definition
One, relif meaning as air crosses an area of high elevation (up a mountain) it rises. Two convection- air is warmed by the earths surface and then rises (usually summer), Three cyclonic- a mass off cooler dense air pushes beneath a mass of warm air and pushes it ip.
Term
What does Northern Artic mean?
Definition
Northern part of an area
Term
What does Southern Artic mean?
Definition
Southern part of an area
Term
How does latitude affect tempeture?
Definition
places closer to the quator expereince warmer tempetures than places further away from the quator.
Term
What is the Pacific Maritime?
Definition
Something near hte pacific ocean
Term
what is the atlantic maritime?
Definition
Something ner the atlantic ocean?
Term
How does tempeture change going up in elevation?
Definition
it will be warmer because when warm air rises it gets cooler and then condenses.
Term
What is the mixedwood?
Definition
Forests that have both deciduous and coniferous trees growing naturally.
Term
What is the Prarie?
Definition
A treeless grass-covered plain in the united states and canada.
Term
what is the boreal plains?
Definition
A large area of fairly dry land, with few trees
Term
what is the hudson plains?
Definition
Somewhere near the hudson bay
Term
What is the Taiga Plains?
Definition
The level or nearly level plain with dense coniferous forest and continuous permafrost in the north.
Term
what is the Artic cordillera?
Definition
The region that lies around the North POle. The area is extremely cold.
Term
what is the Taiga Cordillera?
Definition
Tundra and scattered forest; poor soil and bare rock.
Term
What is Boreal Cordillera?
Definition
Variety or mountain soils with various coniferous trees.
Term
What is Montaine cordillera?
Definition
A group of mountains located together to form one large mountainous region.
Term
What is the Boreal Sheild?
Definition
Forested area dominated by spruce, fir and pine trees
Term
what is the Taiga sheild?
Definition
A broad flat area of exposed rock that lies at the center of each continent.
Term
What is an ecozone?
Definition
A region based on its ecological charactersitics
Term
What are Ecozones based on?
Definition
1. Human Actutes
2. Vegitation
3. landform
4. soil
5. Geology
6. Climate
Term
Which of the following best describe air masses?
Definition
A)A large volume of air that takes the climate conditions of the area where it is formed.
B)A large volume of air that takes the weather conditions of the area where it is formed.
C) A large volume of air that takes the climate conditions of the are4a off the ocean.


(A)
Term
The boundary between the cold, dry polar air and warm, wet tropical air is called what?
Definition
A) Jet stream
B) Tropical Front
C) Artic front


(C)
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