李希;黄国满;卢丽君;赵争;狄桂栓;孙懿;孔庆礼;

• 1:山东科技大学测绘科学与工程学院
• 2:中国测绘科学研究院
• 3:山东省国土测绘院

摘要(Abstract)：

针对如何提高小基线集地面沉降监测精度的问题,该文在小基线集时序分析中使用了基于通用大气校正在线服务(GACOS)的大气相位去除方法,改进了一种基于GACOS的小基线集时序分析技术,对山东黄河三角洲地区进行了地面沉降监测。选取了覆盖研究区的上下30期共60景Sentinel-1A的SLC数据,获取了2015年7月至2017年7月黄河三角洲地区(约1.5万km²)的沉降速率,监测结果与连续运行参考站(CORS)数据基本保持一致。结果表明:东营市广饶县、潍坊市寿光市、滨州市博兴县局部地区存在明显的沉降,其中最大的地面沉降速率可达-126 mm/a,位于石油化工业发达的广饶县石村镇;石油化工业的发展和地下水过度抽取可能对黄河三角洲地面沉降有一定的影响。

关键词(KeyWords)： 小基线集;通用大气校正在线服务;地面沉降;大气相位;黄河三角洲

Abstract:

Keywords:

基金项目(Foundation): 国家基础测绘科技计划项目(2018KJ0103);; 国家重点研发计划项目(2017YFB0503004,2018YFF0215303);; 中国测绘科学研究院基本科研业务费项目(7771808)

作者(Authors): 李希;黄国满;卢丽君;赵争;狄桂栓;孙懿;孔庆礼;

DOI: 10.16251/j.cnki.1009-2307.2020.02.010

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