TY  - Data
T1  - Distribution Map of Permafrost within 1km of Northeast China (2023-2024)
A1  - Zou Defu
A1  - Zhao Lin
DO  - 10.12072/ncdc.nieer.db7270.2026
PY  - 2026
DA  - 2026-04-03
PB  - National Cryosphere Desert Data Center
AB  - This dataset is the distribution data of permafrost in Northeast China, combined with actual drilling and pit exploration data. Driven by terrain factors, vegetation factors, meteorological factors, soil and hydrological factors, the model is constructed using machine learning methods (random forest). Permafrost is mainly distributed in a "W" shape in the Greater and Lesser Khingan Mountains. In the high latitude areas of the northern part of the Greater Khingan Mountains, permafrost is distributed in patches or continuously, and extends southward along the ridge line of the Greater Khingan Mountains to the vicinity of Alshan. The distribution area has a higher altitude. On the east side of the Greater Khingan Range and the north side of the Lesser Khingan Range, permafrost is mainly distributed in the form of tree branches in mountainous valleys and lowlands. The reliable accuracy enables this frozen soil distribution data to serve as a calibration benchmark and historical reference for simulating permafrost in Northeast China under the background of global warming. The data format is GeoTIFF, with a spatial resolution of approximately 1km and a geographic coordinate system of WGS 1984.
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/448cf226-9bc0-4a8b-a8b5-f180bf8c1c33
ER  -