TY  - Data
T1  - 1km permafrost ground temperature distribution data of the permafrost region in Northeast China (2010-2024)
A1  - Li Guoyu
A1  - Chen Dun
A1  - Gao Kai
A1  - Wang Fei
A1  - Cao Yapeng
A1  - Yin Guoan
A1  - NIU Fujun
A1  - Shang Yunhu
A1  - Lin Juncen
A1  - Du Qingsong
A1  - Jia Han
A1  - Wang Yapeng
A1  - Qi Shunshun
A1  - Ai Xihui
A1  - Yang Jiawei
A1  - Li Zhaoxiang
A1  - Hu Meirong
DO  - 10.12072/ncdc.nieer.db7285.2026
PY  - 2026
DA  - 2026-04-07
PB  - National Cryosphere Desert Data Center
AB  - The annual average ground temperature (MAGT) spatial distribution dataset of permafrost in Northeast China is a high-precision (1km ² spatial resolution) basic data product that reflects the thermal state of permafrost in Northeast China. This dataset is based on the theories of heat transfer and energy exchange, and is generated by constructing a one-dimensional numerical calculation model of the physical processes of permafrost changes (introducing enthalpy temperature phase transition mechanism and semi empirical n-factor boundary conditions) through inversion. The driving data is coupled with the soil parameters of SoilGrid250m and the initial geothermal field of ERA5 Land. This dataset contains the current distribution data from 2010 to 2024 (baseline period). Verified by extensive natural and engineering drilling data (such as along the China Russia crude oil pipeline), the root mean square error (RMSE) of data space simulation is controlled within 0.5 ℃, accurately depicting the distribution characteristics of the "brittle" thermal state dominated by high-temperature frozen soil (0-2.0 ℃) in Northeast China. This dataset can provide core data support for major engineering construction in cold regions (such as linear engineering foundation design), ecological environment protection, and regional response to climate change.  This dataset is stored in GeoTIFF raster format, with raster pixel values representing the annual average ground temperature of permafrost within the 1km ² grid. According to the actual measurement experience in the Northeast region, the annual variation of ground temperature at a depth of 10 meters below the surface is usually less than 0.01 ℃ and is not affected by seasonal fluctuations. Therefore, the grid values in this dataset specifically represent the annual average temperature values at a depth of 10 meters underground.
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/9c16c02b-ea8b-4f96-9df7-2ee831130842
ER  -