基于时间序列InSAR的巴东地表形变分析

娄连惠; 刘强; 谭玉敏

doi:10.11988/ckyyb.20201088

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raybet体育在线院报 ›› 2021, Vol. 38 ›› Issue (5) : 149-152. DOI: 10.11988/ckyyb.20201088

信息技术应用

基于时间序列InSAR的巴东地表形变分析

娄连惠¹, 刘强², 谭玉敏²

作者信息 +

Time Series InSAR Analysis on Land Surface Deformation in Badong

LOU Lian-hui¹, LIU Qiang², TAN Yu-min²

Author information +

文章历史 +

摘要

通过利用2017—2019年间53景Sentinel-1A数据,采用SBAS方法完成了巴东地区长江沿岸区域年平均形变速率图的绘制。结果表明:该区域地表形变速率维持在-5~5 mm/a之间;考虑了水位在时间和空间上的影响,分析了水位变化与江边不同距离区域内时间序列形变间的关联关系,认为该区域形变整体受水位变化影响很小。研究成果为评估三峡库区地表形变状况及对三峡库区沿岸区域地质灾害监测预防、工程建设以及水库安全运行等有重要意义。

Abstract

Assessing land surface deformation in the Three Gorges Reservoir area is of vital importance to the monitoring and prevention of geological disasters, the engineering construction and the safe operation of the reservoir. The map of annual average deformation rate in Badong was obtained based on 53 Sentinel-1A data from 2017 to 2019 using SBAS method. Results uncovered that the land surface deformation rate along Yangtze River in Badong ranged between -5 mm per year and 5 mm per year, which was relatively stable. With the spatial and temporal influences of water level fluctuation into consideration, the time series deformation map was further analyzed by classifying into different buffers according to the distance from river. The deformation of the area is little affected by the change of water level.

导出引用

娄连惠, 刘强, 谭玉敏. 基于时间序列InSAR的巴东地表形变分析[J]. raybet体育在线院报. 2021, 38(5): 149-152 https://doi.org/10.11988/ckyyb.20201088

LOU Lian-hui, LIU Qiang, TAN Yu-min. Time Series InSAR Analysis on Land Surface Deformation in Badong[J]. Journal of Changjiang River Scientific Research Institute. 2021, 38(5): 149-152 https://doi.org/10.11988/ckyyb.20201088

中图分类号： TP79

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