G - Types of Cold Environment Flashcards Preview

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Flashcards in G - Types of Cold Environment Deck (10):
1

What are the 3 main reasons environments might be cold?

  • High latitude
  • High altitude
  • They're in the middle of a continent

2

High latitude: why does this make an environment cold?

They recieve less solar radiation than lower latitudes

→ the Suns energy hits the Earth at more of an angle at high latitudes so its spread over a larger area

3

High altitude: why does this make an environment cold?

They're colder because air temperature decreases with increasing alitiude

→ Less of the suns energy reflected back from the Earth is trapped at higher altitudes, making it colder

→ Lower air pressures higher up also mean temperatures drop

(it gets between 6℃ and 10℃ colder for every 1000m you go up)

4

Continentiality: why does this make an area cold?

The middle of continents are cold because they're far away from the sea

→ In summer, the land heats up quickly and the sea heats up slowly --- in the winter, the land cools quickly and the sea cools slowly

So, in the winter the sea warms the land near the coast, but not the interior

5

What are the different types of cold environment?

Glacial, periglacial, alpine and polar

6

Where are glacial environments found?

High altitudes and high latitudes

7

What is a glacial environment?

Areas of land permanently covered in ice - land can be covered by glaciers or ice sheets

8

Glacial environment: examples?

High latitudes: Antarctic ice sheet/ Greenland ice sheet

→ They're both entirely above 60 degrees latitude

High altitude: Himalayan mountains 

 

9

Where are periglacial environments found?

At high altitudes, latitudes and in continental interiors

10