摘要
滑坡不仅影响社会经济的可持续发展,而且威胁人类的生命安全。滑坡敏感性图(LSM)被认为是预测滑坡空间位置的有效手段之一,但现有方法生成的LSM因受假阴性误差的影响,难以得到可靠的预测结果。针对该问题,本文提出了基于InSAR形变结果的LSM改进方法。在甘肃省舟曲县的试验结果表明,研究区范围内滑坡敏感性等级提升2.74%。对两个具体区域的原始LSM和改进后LSM进行比较,结果表明,利用改进后的方法,可在受滑坡蠕动现象影响的区域制作更可靠的LSM。
Landslides not only affect the sustainable development of the social economy but also threaten the safety of human life.A landslide sensitivity map(LSM)is considered to be one of the effective means to predict the spatial location of landslides,but the LSM generated by existing methods is affected by false negative errors,so it is difficult to obtain reliable prediction results.This paper proposes an improved LSM method based on InSAR deformation results to solve this problem.The experimental results in Zhouqu county,Gansu province show that the landslide sensitivity grade within the study area has increased by 2.74%.The comparison results between the original LSM and the improved LSM in two specific regions show that the improved method can make a more reliable landslide sensitivity map in the area affected by landslide creep.
作者
黄龙
孙倩
胡俊
HUANG Long;SUN Qian;HU Jun(College of Geographic Sciences,Hunan Normal University,Changsha 410081,China;Key Laboratory of Geospatial Big Data Mining and Application,Hunan Normal University,Changsha 410081,China;School of Geosciences and Info-Physics,Central South University,Changsha 410083,China)
出处
《测绘通报》
CSCD
北大核心
2022年第10期13-20,共8页
Bulletin of Surveying and Mapping
基金
国家重点研发计划(2018YFC1505101)
国家自然科学基金(41704001,42030112)
湖南省自然科学基金(2020JJ2043,2022JJ30031)
云南省地质灾害隐患识别中心建设项目(2021年)(云财资环[2021]22号)。
