测绘通报 ›› 2021, Vol. 0 ›› Issue (7): 160-162,166.doi: 10.13474/j.cnki.11-2246.2021.0229

• 测绘地理信息技术应用案例 • 上一篇    下一篇

基于星载SAR的滑坡灾害形变特征分析

史德杰1, 蒋金雄2, 杜孙稳3, 张齐民2   

  1. 1. 日照市海域使用动态监管中心, 山东 日照 276800;
    2. 中国矿业大学, 江苏 徐州 221116;
    3. 太原理工大学, 山西 太原 030000
  • 收稿日期:2021-05-28 出版日期:2021-07-25 发布日期:2021-08-04
  • 作者简介:史德杰(1988-),男,硕士生,主要研究方向为卫星遥感。E-mail:dejie_h444@126.com
  • 基金资助:
    山西省高等学校科技创新项目(2019L0199)

Analysis of deformation characteristics of landslide disaster based on spaceborne SAR

SHI Dejie1, JIANG Jinxiong2, DU Sunwen3, ZHANG Qimin2   

  1. 1. Rizhao Marine and Fishery Research Institute Dynamic Supervision Center of Sea Area Use, Rizhao 276800, China;
    2. China University of Mining and Technology, Xuzhou 221116, China;
    3. Taiyuan University of Technology, Taiyuan 030000, China
  • Received:2021-05-28 Online:2021-07-25 Published:2021-08-04

摘要: 为准确监测重点滑坡的活动状态,预防潜在的地质灾害,本文基于4景ALOS-2数据,利用改进的Pixel-Tracking技术获取金沙江白格滑坡2017—2018年间3个连续时间段内的运动分布,试验结果显示,滑坡体运动存在显著的时空差异性,通过对不同时段的速度对比后显示,该滑坡在灾害发生前期滑动位移存在明显的加速趋势。

关键词: 白格滑坡, 像素追踪技术, ALOS-2, 滑动时空差异

Abstract: In order to accurately monitor the activity status of key landslides and prevent potential geological disasters, the article uses the pixel-tracking technology to obtain the movement distribution of the Jinsha River Baige landslide in three consecutive time periods from 2017 to 2018 based on 4 scenes of ALOS-2 data. The results show that there are significant temporal and spatial differences in the movement of the landslide body. The comparison of speeds in different periods shows that the sliding displacement of the landslide has a clear acceleration trend in the early stage of the disaster.

Key words: Baige landslide, pixel-tracking technology, ALOS-2, sliding space-time difference

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