基于InSAR监测的地面沉降时空演化特征研究:以连云港市为例  

Spatial-Temporal Evolution of Land Subsidence Based on InSAR Monitoring:A Case of Lianyungang City

作　　者：蔡田露[1] 卢毅[1] 陆华[1] 闵望[1] CAI Tianlu;LU Yi;LU Hua;MIN Wang(Key Laboratory of Earth Fissures Geological Disaster,Ministry of Natural Resources(Geological Survey of Jiangsu Province),Nanjing 210049,China)

机构地区：[1]自然资源部地裂缝地质灾害重点实验室(江苏省地质调查研究院),南京210049

出　　处：《高校地质学报》2023年第2期289-297,共9页Geological Journal of China Universities

基　　金：江苏省地勘基金项目“连云港城市地质调查”(苏国土资函[2018]374号);中国地质调查与江苏省地勘基金联合项目“江苏沿海地区综合地质调查”(1212011220005、苏国土资函[2014]842号)联合资助。

摘　　要：地面沉降的发生发展与人类社会经济活动息息相关,随着沿海大开发的持续推进,地面沉降中心由内陆向港口、海堤及围填海区域发生转移,沉降影响因素也由单一向混合型转变,而InSAR监测的区域全覆盖特性正好可以匹配如今不断变化的监测需求。文章以连云港地区为例,在简述基于InSAR的地面沉降监测成果的基础上,进行多源数据对比与验证,从而对InSAR监测成果进行验证与评价,最终结果一致性好、可信度高,满足目前地面沉降监测精度要求,为城市地面沉降监测技术体系的优化与完善提供数据支撑。The occurrence and development of land subsidence are closely related to human social and economic activities.With the continuous development of coastal areas,land subsidence centers have shifted from inland to port,seawall and reclamation areas,and the influencing factors have also changed from single to mixed types.The regional full coverage characteristics of InSAR monitoring can meet the changing monitoring requirements.Taking Lianyungang Area as an example,,this paper conducts multi-source data comparison and verification of land subsidence,to verify and evaluate the InSAR monitoring results.The results show good consistency and high credibility,and meet the current requirements for land subsidence monitoring accuracy.The study provides data support for the optimization and improvement of urban land subsidence monitoring technology system.

关 键 词：INSAR 地面沉降 数据融合 水准测量 

分 类 号：P642[天文地球—工程地质学]