Permafrost map of China and its neighbors based on Circum-Arctic Map of Permafrost and Ground Ice Conditions (2001)- A Big Earth Data Platform for Three Poles

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Field description:

Num_code (Frozen soil attribute code)

Combo (Permafrost properties)

extent (Extent of frozen ground)

content (Ice content)

Attributes comparison are as follows:

(1) Comparison table of frozen soil properties:

0 (No information)

1 - chf (Continuous permafrost extent with high ground ice content and thick overburden)

2 - dhf (Discontinuous permafrost extent with high ground ice content and thick overburden)

3 - shf (Sporadic permafrost extent with high ground ice content and thick overburden)

4 - ihf (Isolated patches of permafrost extent with high ground ice content and thick overburden)

5 - cmf (Continuous permafrost extent with medium ground ice content and thick overburden)

6 - dmf (Discontinuous permafrost extent with medium ground ice content and thick overburden)

7 - smf (Sporadic permafrost extent with medium ground ice content and thick overburden)

8 - imf (Isolated patches of permafrost extent with medium ground ice content and thick overburden)

9 - clf (Continuous permafrost extent with low ground ice content and thick overburden)

10 - dlf (Discontinuous permafrost extent with low ground ice content and thick overburden)

11 - slf (Sporadic permafrost extent with low ground ice content and thick overburden)

12 - ilf (Isolated patches of permafrost extent with low ground ice content and thick overburden)

13 - chr (Continuous permafrost extent with high ground ice content and thin overburden and exposed bedrock)

14 - dhr (Discontinuous permafrost extent with high ground ice content and thin overburden and exposed bedrock)

15 - shr (Sporadic permafrost extent with high ground ice content and thin overburden and exposed bedrock)

16 - ihr (Isolated patches of permafrost extent with high ground ice content and thin overburden and exposed bedrock)

17 - clr (Continuous permafrost extent with low ground ice content and thin overburden and exposed bedrock)

18 - dlr (Discontinuous permafrost extent with low ground ice content and thin overburden and exposed bedrock)

19 - slr (Sporadic permafrost extent with low ground ice content and thin overburden and exposed bedrock)

20 - ilr (Isolated patches of permafrost extent with low ground ice content and thin overburden and exposed bedrock)

21 - g (Glaciers)

22 - r (Relict permafrost)

23 - l (Inland lakes)

24 - o (Ocean/inland seas)

25 - ld (Land)

(2) Comparison table of frozen soil scope

c = continuous (90-100%)

d = discontinuous (50- 90%)

s = sporadic (10- 50%)

i = isolated patches (0 - 10%)

(3) Ice content comparison table

h = high (>20% for "f" landform codes) (>10% for "r" landform codes)

m = medium (10-20%)

l = low (0-10%)

File naming and required software

File name: the data is stored in the vector format, and the file name is: permice-china.shp;
Data reading mode: it can be opened by remote sensing software such as ArcGIS and QGIS.

Data Citations Data citation guideline What's data citation?

Cite as:

National Snow and Ice Data Center（NSIDC）., Wu, L. (2013). Permafrost map of China and its neighbors based on Circum-Arctic Map of Permafrost and Ground Ice Conditions (2001). A Big Earth Data Platform for Three Poles, (Download the reference： RIS | Bibtex )

Using this data, the data citation is required to be referenced and the related literatures are suggested to be cited.

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License： This work is licensed under an Attribution 4.0 International (CC BY 4.0)