%0 Dataset
%T Distribution data of 100m freeze-thaw disasters in the permafrost region of Northeast China (2023-2024)
%J National Cryosphere Desert Data Center
%I National Cryosphere Desert Data Center(www.ncdc.ac.cn)
%U http://www.ncdc.ac.cn/portal/metadata/6799fb86-a763-43d0-b05a-99b8c656693e
%W NCDC
%R 10.12072/ncdc.nieer.db7262.2026
%A JIN Huijun
%A Tang Jianjun
%A Wang Wenhui
%A Jin Xiaoying
%A Li Shanzhen
%A Huang Shuai
%A Chen Dun
%A WANG Hongwei
%A Yangsui Bridge
%A Li Zuwang
%A Soaring Swallows
%A Cheng Yaohui
%A Li Jingtao
%A Zhang Ze
%A Wang Lifeng
%A Zhang Hu
%A Liu Mengxin
%A Zhang Shengrong
%A Yang Xue
%A Liu Zirui
%A Yue Ziying
%A Wu Haibin
%A Xing Luning
%A Chen Siyu
%A Xu Jingyan
%A He Zhengyun
%A Mi Hongqi
%A Peng Wenhao
%A Liang Junhe
%A Shi Yanling
%A Zhou Zhiyi
%K Freeze thaw disasters;engineering corridors;machine learning;spatial distribution characteristics;linear infrastructure
%X The data is based on multi-source remote sensing images and field investigations of engineering diseases. Machine learning algorithms are used to determine the weights of factors such as terrain, weather, and frozen soil types, achieving systematic identification and mapping of regional scale freeze-thaw disasters. The dataset focuses on reflecting the disaster aggregation characteristics within linear engineering corridors such as highways, railways, and crude oil pipelines (CRCOP), revealing the evolution of frost damage from "patchy distribution" to "point/corridor aggregation" during the transition from large discontinuous permafrost areas in the north to scattered island shaped permafrost areas in the south. This data can provide core data support for the safety evaluation of infrastructure in cold regions and the study of environmental effects of permafrost degradation.  The classification system of this dataset (grid values 1-6) strictly corresponds to typical engineering diseases in permafrost regions:  1: Hot melt lake pond  2: Road cracks  3: Freeze-thaw erosion  4: Uneven settlement of road surface  5: Ice vertebrae  6: Water destroyed.