张永红,李明巨,吴宏安,刘波,康永辉,何倩

• 1:中国测绘科学研究院
• 2:江苏省基础地理信息中心

摘要(Abstract)：

针对江苏省是长三角地区地面沉降比较严重的地区,InSAR技术作为最有效的地表形变监测手段,曾被用来获取江苏局地的地面沉降信息,但用于全省域监测尚无先例的现状。该文介绍了利用时间序列InSAR技术开展江苏全省地面沉降监测的方法和成果,提出了适用于区域级和国家级合成孔径雷达干涉测量(InSAR)形变监测的技术方法,给出了基于ALOS PALSAR影像和RADARSAT-2影像的江苏全省2007—2011年及2012—2015年2个时段的地面沉降监测成果,利用江苏省CORS站数据,对InSAR获取的地面沉降速率进行了精度评价。结果表明,2个时段的InSAR监测结果的精度分别为3.8(mm·a~(-1))和4.0(mm·a~(-1))。最后对2个时段的全省地面沉降的时空分布、动态变化情况进行了分析,并对InSAR监测成果的应用前景进行了展望。

关键词(KeyWords)： 地面沉降;江苏全省;InSAR;PALSAR;RADARSAT-2

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(41874014);; 政府间国际科技创新合作重点专项(2017YFE0107100)

作者(Author): 张永红,李明巨,吴宏安,刘波,康永辉,何倩

DOI: 10.16251/j.cnki.1009-2307.2019.06.016

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