TY  - Data
T1  - 30m permafrost engineering foundation stability prediction and evaluation data of the permafrost region in Northeast China (2023-2024)
A1  - JIN Huijun
A1  - Tang Jianjun
A1  - Wang Wenhui
A1  - Jin Xiaoying
A1  - Li Shanzhen
A1  - Huang Shuai
A1  - Chen Dun
A1  - WANG Hongwei
A1  - Yangsui Bridge
A1  - Li Zuwang
A1  - Soaring Swallows
A1  - Cheng Yaohui
A1  - Li Jingtao
A1  - Zhang Ze
A1  - Wang Lifeng
A1  - Zhang Hu
A1  - Liu Mengxin
A1  - Zhang Shengrong
A1  - Yang Xue
A1  - Liu Zirui
A1  - Yue Ziying
A1  - Wu Haibin
A1  - Xing Luning
A1  - Chen Siyu
A1  - Xu Jingyan
A1  - He Zhengyun
A1  - Mi Hongqi
A1  - Peng Wenhao
A1  - Liang Junhe
A1  - Shi Yanling
A1  - Zhou Zhiyi
DO  - 10.12072/ncdc.nieer.db7261.2026
PY  - 2026
DA  - 2026-04-02
PB  - National Cryosphere Desert Data Center
AB  - This dataset takes the high latitude permafrost region in Northeast China as the research object, and comprehensively utilizes multi-source remote sensing data with a spatial resolution of 30 meters, surface and underground temperature monitoring data, permafrost type distribution, and engineering interference information to construct a model for predicting and evaluating the stability of permafrost engineering foundations. This dataset quantitatively evaluates the basic stability along the linear engineering line and its impact range. The evaluation results are characterized by a dimensionless stability index ranging from 0.0 to 1.0, revealing the destructive effect of human engineering activities on the thermal balance of permafrost. The data exhibits a significant "linear focus" feature, where the low stability and high risk zones overlap highly with transportation and energy corridors, providing core decision support for regional scale engineering planning and frost damage risk prevention and control.  The core element of this dataset is the stability index (dimensionless, 0-1), which is divided into three levels based on risk level:  High stability zone (0-0.30): Low risk, displayed in green. Mainly distributed within large areas of discontinuous permafrost, with low ground temperature, stable active layer, and minimal interference.  Medium stable zone (0.30-0.60): medium risk, displayed in yellow. Distributed in the transition zone from discontinuous frozen soil with more melting areas to island/sporadic frozen soil.  Low stability zone (0.60-1.0): High risk, displayed in red.  Highly concentrated along linear engineering (G111, G331, CRCOP pipelines, etc.), forming continuous or quasi continuous high-risk zones.
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/70c33bc7-ee0b-47b2-b7b4-092c65bcb222
ER  -