Deformation Monitoring of Tianjin Binhai International Airport by Dual-mode Time Series InSAR Technology
In order to solve the problems of high cost and long observation period of traditional ground subsidence methods,time-se-ries InSAR technology is widely used in airport deformation monitoring research.But there are monitoring defects in different single time-series InSAR techniques.SBAS-InSAR technique is only suitable for large-scale area monitoring,and lacks the analysis of a single surface point.PS-InSAR techniques is overly dependent on coherence and limited to linear deformation.To overcome the limitations of single-technique analysis,DMTS-InSAR technique is used to analyze the airport deformation in this paper.In this pa-per,21 ascending radar images from Sentinel-1A were utilized,with a focus on the local area of Tianjin Binhai International Air-port as the study region.The evaluation of monitoring results obtained through the DMTS-InSAR technique aimed to address the limitations inherent in single-technique analyses.The experimental results indicate that there are scattered local subsidence areas at Tianjin Binhai International Airport.Among them,the deformation at the airport apron is the most significant,with a maximum vertical subsidence rate of 25 mm/a.The findings suggest that utilizing DMTS-InSAR techniques for monitoring airport ground de-formation can yield more accurate and reliable deformation results
DMTS-InSARPS-InSARSBAS-InSARdeformation monitoring of airport
万方数据
维普
