利用PSInSAR方法反演大时空尺度地表沉降速率

罗三明, 杜凯夫, 万文妮, 付黎明, 李永坤, 梁福逊

罗三明, 杜凯夫, 万文妮, 付黎明, 李永坤, 梁福逊. 利用PSInSAR方法反演大时空尺度地表沉降速率[J]. 武汉大学学报 ( 信息科学版), 2014, 39(9): 1128-1134. DOI: 10.13203/j.whugis20130670
引用本文: 罗三明, 杜凯夫, 万文妮, 付黎明, 李永坤, 梁福逊. 利用PSInSAR方法反演大时空尺度地表沉降速率[J]. 武汉大学学报 ( 信息科学版), 2014, 39(9): 1128-1134. DOI: 10.13203/j.whugis20130670
LUO Sanming, DU Kaifu, WAN Wenni, FU Liming, LI Yongkun, LIANG Fuxun. Ground Subsidence Rate Inversion of Large Temporal and SpatialScales Based on Extended PSInSAR Method[J]. Geomatics and Information Science of Wuhan University, 2014, 39(9): 1128-1134. DOI: 10.13203/j.whugis20130670
Citation: LUO Sanming, DU Kaifu, WAN Wenni, FU Liming, LI Yongkun, LIANG Fuxun. Ground Subsidence Rate Inversion of Large Temporal and SpatialScales Based on Extended PSInSAR Method[J]. Geomatics and Information Science of Wuhan University, 2014, 39(9): 1128-1134. DOI: 10.13203/j.whugis20130670

利用PSInSAR方法反演大时空尺度地表沉降速率

基金项目: 地震科技星火计划资助项目(XH13036);中国地震局地震研究所所长基金资助项目(IS201266111)
详细信息
    作者简介:

    罗三明,高级工程师,主要从事大地测量数据分析、DInSAR方法与应用研究。

  • 中图分类号: P237.9

Ground Subsidence Rate Inversion of Large Temporal and SpatialScales Based on Extended PSInSAR Method

Funds: The Seism Science & Technology Spark Program of China Earthquake Administration,No.XH13036;DirectorFoundation of the Institute of Seismology,China Earthquake Administration,No.IS201266111.
More Information
    Author Bio:

    LUO Sanming,senior engineer,specializes in geodesy data analysis,DInSAR method and application.

  • 摘要: 目的 通过时间基准和空间基准的连接,对PSInSAR方法进行了扩展,对覆盖华北平原约20万km2的500余景Envisat ASAR数据进行了处理,获取了该地区2006~2010年的地表沉降速率。分析表明,华北平原多个沉降中心沉降速率处于较高发展态势,从北京-廊坊-天津到任丘、沧州、泊头、衡水、德州、南宫,再到邯郸,地面沉降已连成一片;天津市的静海-滨海地面沉降最为突出,两地沉降中心区的平均沉降速率分别达到62mm/a和67 mm/a,北 京 东 部、沧 州、泊 头-衡 水-德 州、邯 郸 等 老 沉 降 区 的 沉 降 速 率 分 别 达 到36 mm/a、34mm/a、37mm/a、29mm/a。利用天津地区同期水准测量结果检验了本文的研究结果,差值均小于10mm,表明PSInSAR方法反演结果与水准测量获得的结果是一致的。
    Abstract: Objective Estimation of processes for slow change in small scale surfaces is one of the main advantagesof PSInSAR technology.We present a mathematical framework for the datum connection for time-space referencing,applying it to 500scenes composed of Envisat ASAR images covering about 200 000km2 of the North China Plain,obtained the rate of ground subsidence in the study area during the pe-riod of 2006-2010.The experimental results show that:(1)the multiple subsidence centers in NorthChina Plain were still in an evolving state,connecting Beijing,Langfang,Tianjin,Renqiu,Cang-zhou,Botou,Hengshui,Dezhou,Nangong and Handan into a continuous area.(2)The most promi-nent ground subsidence was in Tianjin’s Jinghai and Binhai areas having average subsidence rates of62mm/a and 67mm/a along the line of sight,respectively.The subsidence of the old centers,to theeast of Beijing,Cangzhou,Botou -Hengshui -Dezhou,Handan,had rates of 36mm/a,34mm/a,37mm/a,29mm/a,respectively.(3)The experimental results were validated with leveling data inTianjin area.The difference between the two methods is less than 10mm,which shows that the re-sults obtained by the PSInSAR technique are consistent with those obtained by leveling.(4)The re-sults here presented can be used as development prevention reference measures of regional ground sub-sidence.
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出版历程
  • 收稿日期:  2013-11-10
  • 修回日期:  2014-09-04
  • 发布日期:  2014-09-04

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