What is the maximum depth of permafrost?

1,5 m
15 m
150 m
1500 m
In areas of harsh winters the depth of the per­mafrost can be as much as 1,493 m (4,898 ft) in the northern Lena and Yana River basins. The over­ly­ing active layer that sea­son­al­ly thaws is just 0.6–4 m (2.0–13 ft) thick.

Answers distribution

1,5 m
15 m
150 m
1500 m
answers
flagFinland
0%
0%
4%
95%
23
flagthe United Arab Emirates
0%
6%
0%
93%
16
flagVietnam
0%
0%
7%
92%
13
flagItaly
0%
3%
9%
87%
31
flagGermany
4%
5%
18%
71%
136
flagNorway
4%
9%
13%
68%
22
flagRepublic of Ireland
11%
11%
19%
58%
36
flagthe Netherlands
3%
15%
24%
57%
33
flagFrance
6%
19%
19%
54%
31
flagPoland
8%
15%
23%
52%
9452
flagthe United Kingdom
10%
17%
21%
50%
223
flagDenmark
5%
25%
20%
50%
20
flagIndia
8%
12%
30%
46%
49
flagthe Philippines
0%
16%
41%
41%
12
flagthe United States
8%
18%
31%
40%
266
flagAustralia
21%
26%
13%
34%
23
flagUnknown
20%
23%
28%
28%
39
flagCanada
25%
12%
34%
28%
32
flagCzech Republic
9%
36%
27%
27%
11
flagUkraine
0%
27%
45%
27%
11

Gender

men54%
women52%
1,5 m
8%
7%
15 m
15%
14%
150 m
21%
25%
1500 m
54%
52%

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What is the maximum depth of permafrost?
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Author: Kasia
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