%0 Dataset
%T 30m slope and aspect data of the permafrost region in Northeast China (2000)
%J National Cryosphere Desert Data Center
%I National Cryosphere Desert Data Center(www.ncdc.ac.cn)
%U http://www.ncdc.ac.cn/portal/metadata/891d3848-10f5-4471-8fc4-88cd32d4c929
%W NCDC
%R 10.12072/ncdc.nieer.db7258.2026
%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 Digital elevation model;slope;aspect
%X This data resource includes slope and aspect terrain factor data extracted based on a 30 meter resolution digital elevation model, covering the main engineering corridors and their surrounding areas in the permafrost region of Northeast China. The dataset focuses on the control effect of terrain morphology in permafrost regions on surface processes and engineering environmental stability, providing basic terrain constraint information for identifying freeze-thaw disasters and monitoring infrastructure in cold regions.  The slope data reveals significant topographic spatial heterogeneity in the study area, presenting an overall pattern of concentrated mountainous areas and open plains. The mountainous areas of Daxing'anling and Xiaoxing'anling are mainly characterized by medium to high slope terrain, which is an important geomorphic unit for the development of permafrost and freeze-thaw disasters over the years; The terrain in the western plateau and lake basin plain areas is gentle, with slopes mostly within the low range. This data can finely characterize the geometric shape and micro topography of slopes along the engineering route, providing key terrain parameters for identifying potential slope erosion, thermal collapse, and gravity deformation sensitive areas.  The slope orientation data reflects a complex slope orientation pattern at a spatial scale of 30 meters, which can characterize the typical slope radiation differential environment in permafrost regions. There are significant differences in the solar radiation reception conditions corresponding to different slope orientations, which in turn affect the background of surface heat exchange. This data helps to describe the characteristics of thermal environment differentiation on the uphill surface at the regional scale, providing important auxiliary information for analyzing the differences in frozen soil stability on both sides of the project and the spatial distribution of disasters.