江西科学2024，Vol.42Issue(2)：277-282,371,7.DOI:10.13990/j.issn1001-3679.2024.02.010
基于时序InSAR技术的南昌市地表形变监测分析
Analysis of Surface Deformation Monitoring in Nanchang Based on Time Series InSAR Technology
摘要
Abstract
With the rapid development of economy and the continuous acceleration of urbanization process,under the influence of human over-development and natural factors,the urban surface de-formation occurs slowly.Accurate and long-term urban surface monitoring is of great significance to protect people's lives and prevent potential risks.In this paper,38 Sentinel-1A images covering the urban area of Nanchang from January 2021 to January 2023 were selected and processed by SBAS-InSAR technology combined with PS ground control points to obtain surface deformation information such as settlement rate and cumulative shape variables,and cross-verified with PS-InSAR results to determine its reliability.Research has shown that the monitoring results obtained by the two methods have strong correlation,with a correlation coefficient of 0.895 6.The deformation of Nanchang city is generally stable,which can be divided into 3 subsidence areas and 1 uplifting area.The causes of surface deformation characteristics are analyzed based on geological structure,groundwater charac-teristics and reconstruction data of old districts.关键词
地表形变/南昌市/PS-InSAR/SBAS-InSAR/形变分析Key words
surface deformation/Nanchang/PS-InSAR/SBAS-InSAR/deformation analysis分类
天文与地球科学引用本文复制引用
张震,夏元平,王霞迎,逯登科..基于时序InSAR技术的南昌市地表形变监测分析[J].江西科学,2024,42(2):277-282,371,7.基金项目
国家自然科学基金项目(41962018,42174055). （41962018,42174055）
