1. The data includes two vector layers: (1) permafrost layer and (2) permafrost layer_ (3) thickness of frozen soil (4) conditions of frozen soil formation (5) image correction
2. The permafrost distribution map includes the following fields: area, perimeter and frozen_ ,FROZEN_ ID:POLY_ ,POLY_ ,RINGS_ OK,RINGS_ NOK, a, permafrost: frozen_ SOI, temperature. Permafrost and frozen_ SOI is the Chinese and English expression of frozen soil type.
3. Permafrost properties:
Frozen soil temperature
Continuous largely unfrozen 1-5
Continuous permafrost-3 -- 5
Continuous unfrozen ground 4-6
Discontinuous permafrost 0.5 -- 2
Large continuous permafrost-1 -- 3
Largely unfrozen ground 1-3
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From 1991 to 1996, Russia published a series of 1:250 geological map of Russia and neighbouring republics, with 16 maps marked in Russian. In 1998, Zaitsev et al. Translated it into English. In this digitization, 7 themes will be selected for digitization, which are: 1) distribution of from and unfrozen ground, 2) mean annual temperature of from and unfrozen ground at the depth of zero annual amplitude, 3) thick of performat, 4) depth from the surface and thickness of relevant performat, 5) distribution of performat contact ning cryopegs, 6）Thickness of permafrost containing cryopegs, 7）Distribution of permafrost with depth。
Instrument automatic observation manual statistics
Data set quality control through strict manual audit
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CSTR:11738.11.ncdc.Westdc.2020.416
10.12072/ncdc.westdc.db3802.2023