地理空间信息2025，Vol.23Issue(7)：11-16,6.DOI:10.3969/j.issn.1672-4623.2025.07.003
利用多时相Sentinel-1数据监测根拉公路冻融形变特征
Freeze-thaw Deformation Characteristics Monitoring of the Gen-La Highway Based on Multi-temporal Sentinel-1 Images
摘要
Abstract
The Genhe-Labulin Highway(Gen-La Highway)passes through the high-latitude permafrost region in Northeast China and is significantly affected by freeze-thaw cycles.Therefore,its stability monitoring is crucial for ensuring safe operation and routine maintenance.We used multi-temporal InSAR technology to analyze Sentinel-1 data from 2016 to 2020 covering the Gen-La Highway,and extracted the linear displacement speed and seasonal displacement amplitude of the Gen-La Highway and its surrounding areas at first.Then,we conducted a hotspot analysis of regional linear and seasonal deformation,and used wavelet transform to quantitatively investigate the correlation between surface deformation and temperature.The results show that the maximum linear displacement speed in the study area reaches 69.97 mm/a,while the maximum seasonal displacement amplitude is 26.34 mm.The overall roadbed of the Gen-La Highway remains stable,but some sections experience uneven deformation and significant freeze-thaw damage.The common period of surface deformation and temperature is approximately 374 days,with surface deformation lagging behind temperature by about 38 days.关键词
季节性冻土/冻融循环/时序InSAR/高速公路Key words
seasonal permafrost/freeze-thaw cycle/time series InSAR/highway分类
天文与地球科学引用本文复制引用
陈薇,王盼,张丽,史绪国..利用多时相Sentinel-1数据监测根拉公路冻融形变特征[J].地理空间信息,2025,23(7):11-16,6.基金项目
国家自然科学基金资助项目(42474061). （42474061）
