山东省德州市德城区地面沉降时序InSAR监测与分析
The Time-Series InSAR Monitoring and Analysis of Land Subsidence in Decheng District,Dezhou City,Shandong Province
傅星媛 1葛鹏飞 1陈蜜 1朱琳 1卫黎光 2丁瑞力 3刘辉 1刘菲4
作者信息
- 1. 首都师范大学资源环境与旅游学院,北京,100028;首都师范大学城市环境过程与数字模拟国家重点实验室培育基地,北京,100028;首都师范大学水资源安全北京实验室,北京,100028
- 2. 航天宏图信息技术股份有限公司,北京,100195
- 3. 首都师范大学资源环境与旅游学院,北京,100028;首都师范大学城市环境过程与数字模拟国家重点实验室培育基地,北京,100028;首都师范大学水资源安全北京实验室,北京,100028;山西省煤炭地质物探测绘院有限公司,山西晋中,030600
- 4. 首都师范大学资源环境与旅游学院,北京,100028;首都师范大学城市环境过程与数字模拟国家重点实验室培育基地,北京,100028;首都师范大学水资源安全北京实验室,北京,100028;寿光市大数据中心,山东寿光,262700
- 折叠
摘要
以山东省德州市德城区为研究区,利用2019年至2021年获取的33景Sentinel-1A升轨、38景Sentinel-1B降轨影像,基于小基线集技术(small baseline subset,SBAS)提取研究区地面沉降时空分布信息,将升、降轨SAR数据获取的地面沉降监测结果进行交叉检验,验证时序InSAR监测结果的可靠性.同时结合地下水、降水量、DEM等数据,运用地理探测器量化分析德城区地面沉降的影响因素.研究结果表明:德城区地面沉降呈现不均匀分布特征,沉降的范围缓慢扩张,沉降中心逐年向东南向移动.影响德城区地面沉降的首要因素为地下水位变化,其次为年均降水量.大部分地面沉降影响因子间都是非线性增强作用,极少部分表现为双因子增强效果.
Abstract
We take Decheng District,Dezhou City,Shandong Province as the study area,and use the 33-view Sentinel-1A ascending orbit and 38-view Sentinel-1B descending orbit im-ages acquired from 2019 to 2021 to extract the spatial and tem-poral distribution information of ground subsidence in the study area based on small baseline subsets InSAR (SBAS-In-SAR) technology. The land settlement monitoring results ob-tained from the ascending and descending track SAR data are cross-validated to verify the reliability of the time-series In-SAR monitoring results. The data of groundwater,precipita-tion and DEM were also combined to quantify and analyze the influencing factors of ground subsidence in the Dezhou area us-ing geographic probes. The results of this paper show that,the land subsidence in the Decheng area shows the characteris-tics of uneven distribution,the range of land subsidence has a tendency of slow expanding,and the center of land subsidence shows a trend of moving eastward and southward year by year. The main factor affecting land subsidence in Decheng District is groundwater level change,followed by annual pre-cipitation. Most of the influencing factors are nonlinear en-hancement effects,and few of them are double factor enhance-ment effects.
关键词
德州市德城区/SBAS-InSAR/地面沉降/地理探测器/DEMKey words
Dezhou city Decheng district/SBAS-InSAR/land subsidence/geographic probes/DEM引用本文复制引用
基金项目
国家重点研发计划(2017YFB0503803)
教育部产学合作协同育人项目(220902313270248)
出版年
2024
NETL
NSTL
万方数据