石固林,徐浪,张璇钰,赵晶晶

• 1:西南交通大学地球科学与环境工程学院测绘遥感信息系

摘要(Abstract)：

针对传统地表形变监测技术在我国西南山区深厚堆积层滑坡体形变监测中存在的时空分辨率问题,该文利用72景时序Sentinel-1A TOPS SAR影像,基于短基线集(SBAS-InSAR)技术获取2016—2019年四川理县通化乡西山村滑坡的时序形变特征。结果表明:西山村滑坡整体呈近线性沉降的运动趋势,在监测时段内未出现加速现象,处于长期活跃的蠕动形变。其时序形变结果呈现较为均匀的变化,与坡体形态吻合度较高,雷达视线方向的累计形变量在-315.2～20 mm之间变化,形变速率在-116～9.5 mm/a之间变化。时序形变结果表明:最严重的形变区域位于水田寨村组与马崩渔湾村组的交界处,其次是坡体中下部的水田寨村组,坡体后部的拉海拉湾村组的形变程度最小。

关键词(KeyWords)： SBAS-InSAR;深厚堆积层滑坡;时序监测

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 石固林,徐浪,张璇钰,赵晶晶

DOI: 10.16251/j.cnki.1009-2307.2021.02.014

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