华北水利水电大学学报（自然科学版）2025，Vol.46Issue(5)：14-22,9.DOI:10.19760/j.ncwu.zk.2025069
黄河上游沱沱河盆地多年冻土InSAR形变监测与稳定性分析
InSAR Deformation Monitoring and Stability Analysis of Permafrost in Tuotuo River Basin,in the Upper Yellow River
摘要
Abstract
[Objective]The alternating process of water-ice phase transition in permafrost damages hydrological environments and surface engineering,leading to hazards such as roadbed collapse,landslides,floods,and glacial lake outbursts.Intelligent perception of potential risks is crucial for protecting infrastructure in permafrost regions.[Methods]Using 194 Sentinel-1A im-ages(January 2017-April 2023),SBAS-InSAR technology was applied to obtain deformation results in the permafrost area of Tuotuo River Basin in the upper Yellow River.GNSS monitoring data from the past seven years validated the reliability of InSAR results.Precipitation and temperature data were incorporated to analyze impacts of environmental factors and human activities on deformation.[Results]Permafrost surface deformation was significant and spatially heterogeneous,with a maximum deformation rate of 13 mm/year during the monitoring period.Qinghai-Tibet Railway roadbed exhibited seasonal"frost heave and thaw set-tlement"patterns:uniform subsidence during warm seasons and slow uplift during cold seasons.Under climate warming,warm seasons gradually lengthen relative to cold seasons.InSAR and GNSS results showed consistent trends,RMSE and R2 were 4.33 mm and 0.9,respectively.After incorporating precipitation and temperature factors,deformation displayed significant clustering characteristics,with pronounced deformation in areas of intensive human activity.[Conclusion]This study provides critical insights for permafrost disaster prevention and mitigation,protection of people's lives and property,and infrastructure safety,offering references for engineering construction in high-latitude permafrost regions.关键词
多年冻土/SBAS-InSAR/形变监测/卫片建模/冰冻圈Key words
permafrost/SBAS-InSAR/deformation monitoring/satellite image modeling/cryosphere分类
天文与地球科学引用本文复制引用
刘辉,朱梦源,苗长伟,刘文锴,曹斌,王俊卿..黄河上游沱沱河盆地多年冻土InSAR形变监测与稳定性分析[J].华北水利水电大学学报（自然科学版）,2025,46(5):14-22,9.基金项目
国家自然科学基金项目(41901411) （41901411）
河南省高等学校青年骨干教师培养计划项目(2021GGJS073) （2021GGJS073）
河南省科技攻关项目(212102310052) （212102310052）
中央引导地方科技发展资金资助(2025ZYDF033). （2025ZYDF033）
