12. permafrost distribution and climate
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Periglacial areas • You should be able to describe and explain the different locations of continuous, discontinuous and sporadic permafrost • You should be able to describe and explain the different climates in these 3 zones.
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A resource to help teach/study AQA's Cold environments unit - from http://www.coolgeography.co.uk
Transcript of 12. permafrost distribution and climate
Periglacial areas
• You should be able to describe and explain the different locations of continuous, discontinuous and sporadic permafrost
• You should be able to describe and explain the different climates in these 3 zones.
Changes in the permafrost layer in Northern Canada
1. Define the key terms around the digram below
2. Describe and explain the changes in the cross section below.
Changes in the permafrost layer in Northern Canada
(map of area shown on section)
Pacific Ocean
Hudson Bay
Arctic Ocean
Canada
USA
USA
(Alaska)
Draw the graphs on Excel for these 3 areas in Canada. Add them to your map of Canada and state if they are from zones of continuous, discontinuous or sparadic
permafrost
`
R e s o lu t e
01 02 03 04 05 06 07 08 09 0
Pre
cipi
tatio
n
- 4 0
- 3 0
- 2 0
- 1 0
0
1 0
2 0
Tem
pera
ture m m
° C
Y e l lo w k n i f e
01 02 03 04 05 06 07 08 09 0
Pre
cipi
tatio
n
- 4 0
- 3 0
- 2 0
- 1 0
0
1 0
2 0
Tem
pera
ture m m
° C
C a lg a r y
01 02 03 04 05 06 07 08 09 0
Pre
cipi
tatio
n
- 4 0
- 3 0
- 2 0
- 1 0
0
1 0
2 0
Tem
pera
ture m m
C
Analyse the graph below
How would these patterns change over time and space?
When does glaciation end and periglaciation begin?
Are the actions of a thawing glacier glaciation or periglaciation?
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