WCSE 2023
ISBN: 978-981-18-7950-0 DOI: 10.18178/wcse.2023.06.040

Accuracy Testing and Analysis of PS-InSAR and DS-InSAR in Monitoring Urban Land Subsidence

Xiaoyu Xia

Abstract—InSAR is a new technique in the field of land subsidence monitoring,and the application is more and more widely. In order to evaluate the monitoring accuracy of InSAR objectively´╝îit is necessary to use leveling results to test and analyze the monitoring results of InSAR.Two sets of datas of the surface subsidence of Shangyu are acquired by using PS-InSAR technique and DS-InSAR technique to process the datas of the 23 scenes sentinel-1 images covering Shangyu area respectively.The accuracy of the results is tested and analyzed by using the second-order leveling results of Shangyu area. The results show that the mutual difference between the second-order leveling results and PS-InSAR or DS-InSAR results is mainly distributed in the range of - 5 ~ + 5mm / year, which demonstrate that the monitoring results of PS-InSAR and DS-InSAR are reliable.It provides basic information and data for the construction of land subsidence monitoring network and comprehensive treatment of land subsidence, and provides decision-making basis for government departments to prevent and control geological disasters of land subsidence.

Index Terms—PS-InSAR,DS-InSAR,land subsidence

Xiaoyu Xia
Shandong Jiaotong University, CHINA

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Cite: Xiaoyu Xia, "Accuracy Testing and Analysis of PS-InSAR and DS-InSAR in Monitoring Urban Land Subsidence" Proceedings of 2023 the 13th International Workshop on Computer Science and Engineering (WCSE 2023), pp. 269-274, June 16-18, 2023.