地震学
地质学
变形(气象学)
地面沉降
变形监测
大地测量学
地下水相关沉降
下沉
岩土工程
地貌学
海洋学
构造盆地
作者
Xiaobo Zhang,Jun Li,Lei Wang,Wei Sun
摘要
During the earthquake interval in northeast China, it is of great significance to monitor the ground deformation in Songyuan City with an earthquake in 2018. In this paper, the Sentinel-1 images in two orbits during 2017 and 2020 were used to monitor the long time-series and large area ground deformation in Songyuan City. The deformation was obtained by setting the spatial baseline, coherence threshold and other parameters reasonably. And the results mainly showed that there was ground deformation phenomenon and differences spatially, and coherent points P1 and P3 showed relatively significant linear subsidence characteristics from July 2018 to July 2019, which indicated the ground stable was mainly influenced by the earthquake.
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