基于改进SBAS-InSAR方法的地下水动态监测的沉降分析  

Subsidence analysis for dynamic groundwater monitoring based on improved SBAS-InSAR methods

作　　者：管静 GUAN Jing(Chengde Hydro-logical Survey and Research Centre,Chengde,Hebei 067000,China)

机构地区：[1]河北省承德水文勘测研究中心,河北承德067000

出　　处：《地下水》2024年第3期65-68,共4页Ground water

摘　　要：随着人类社会的发展,地面沉降和地下水资源过度开采的问题在日益严重。为对地下水动态变化和地面沉降之间的关系进行分析,结合改进后的小基线集雷达干涉测量技术和重力反演与气候实验卫星数据,通过改进后的小基线集雷达干涉测量技术和卫星数据分别对地表形变和地下水动态变化进行监测,最后分析了二者之间的关系。结果显示,GRACE地下水储量等效水高的最大值为50 mm,最小值为-80 mm,平均地面沉降量的最大值为0 mm,最小值为-4.8,地下水储量的变动趋势和地面沉降的变动趋势基本一致,地面沉降和地下水动态变化之间具有相关性。研究结果对地面沉降的防治具有指导意义。With the development of human society,the problems of ground subsidence and over-exploitation of groundwater resources are becoming increasingly serious.In order to analyse the relationship between changes in groundwater dynamics and ground subsidence,surface deformation and changes in groundwater dynamics were monitored through the improved small-baseline-set radar interferometry technique and satellite data of the Gravity Inversion and Climate Experiment,respectively,and the relationship between the two was finally analyzed.The results show that the maximum value of equivalent water height of GRACE groundwater storage is 50 mm and the minimum value is-80 mm,the maximum value of average ground subsidence is 0mm and the minimum value is-4.8,the trend of changes in groundwater storage and the trend of changes in ground subsidence are basically the same,and there is a correlation between the dynamic changes of ground subsidence and groundwater.The results of the study are instructive for the prevention and control of ground subsidence.

关 键 词：SBAS-InSAR GRACE 地面沉降 地下水 动态监测 

分 类 号：P641.74[天文地球—地质矿产勘探]