殷幼松,谢酬,李晓芳,康永辉,刘广全,李杰

• 1:环球星云遥感科技有限公司
• 2:中国科学院遥感与数字地球研究所
• 3:中国测绘科学研究院

摘要(Abstract)：

为了获取贵州兴义市龙井村大型岩质滑坡的前兆形变信息,该文以RADARSAT-2和Sentinel-1A影像集为数据源,采用时序InSAR分析方法,解译得到该滑坡2018年初至临滑前的形变速率与时间序列。针对研究区单一影像源形变监测结果存在的离散点密度少、滑坡体时序演化规律刻画不足等问题,该文在充分融合相干分布式目标进行形变反演的基础上,结合两类影像源的空间分辨率和重访周期优势,获取到滑坡发生前周边的形变信息。分析结果表明,龙井村滑坡在监测时段内存在明显形变行为,且其发生前两个月内有加速下滑迹象,时间序列曲线切线角增大,滑动风险逐渐增加。

关键词(KeyWords)： 时序InSAR;龙井村滑坡;RADARSAT-2;Sentinel-1A;形变

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 殷幼松,谢酬,李晓芳,康永辉,刘广全,李杰

DOI: 10.16251/j.cnki.1009-2307.2020.10.009

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