基于D-InSAR技术的大范围地灾普查分析——以雅安为例
Survey and Analysis of Large-scale Ground Disaster Based on D-InSAR Technology——Taking Ya'an as an Example
闫鑫 1冯柏程 1刘文强1
作者信息
摘要
研究针对区域地灾普查的需求,利用Sentinel-l卫星影像数据,通过二轨法合成孔径雷达干涉差分干涉技术(D-InSAR)获取雅安地区 2023 年 10 月至 2023 年 12 月间的大范围地表形变信息.处理结果表明,在影像覆盖期间,雅安地区沉降形变主要以东部、南部为主,地表最大沉降量为 6.7 cm.D-InSAR技术能够为地灾普查提供高精度、大范围的形变信息.
Abstract
To meet the need of regional geological disaster survey,the study made use of Sentinel-1 satellite image data and employed Differential Interferometric Synthetic Aperture Radar(D-InSAR)technology through two-pass method to acquire large-scale surface deformation information in Ya'an area from October 2023 to December 2023.The processing results showed that during the image coverage period,the settlement deformation in Ya'an area was mainly concentrated in the east and south,with the maximum surface settlement of 6.7 cm.D-InSAR technology can provide high-precision and large-scale deformation information for geological disaster survey.
关键词
地灾普查/D-InSAR/数据分析Key words
ground disaster survey/D-InSAR/data analysis引用本文复制引用
出版年
2024
NETL
NSTL
万方数据