测绘通报 ›› 2017, Vol. 0 ›› Issue (7): 89-93.doi: 10.13474/j.cnki.11-2246.2017.0230

• 技术交流 • 上一篇    下一篇

沧州地区地面沉降现状Sentinel-1A/B时序InSAR监测与分析

周洪月1,2, 汪云甲1,2, 闫世勇1,2, 吴岳1,2, 刘茜茜1,2   

  1. 1. 中国矿业大学环境与测绘科学院, 江苏 徐州 221116;
    2. 国土环境与灾害监测国家测绘地理信息局重点实验室, 江苏 徐州 221116
  • 收稿日期:2017-01-23 出版日期:2017-07-25 发布日期:2017-08-07
  • 作者简介:周洪月(1990-),男,硕士生,主要从事InSAR技术在城市地面沉降监测方面的应用与研究工作。E-mail:ZhouHY0516@126.com
  • 基金资助:
    国家自然科学基金(51574221);江苏省自然科学基金(BK20150189)

Land Subsidence Monitoring and Analyzing of Cangzhou Area Sentinel-1A/B Based Time Series InSAR

ZHOU Hongyue1,2, WANG Yunjia1,2, YAN Shiyong1,2, WU Yue1,2, LIU Xixi1,2   

  1. 1. School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, China;
    2. National Administration of Surveying Mapping and Geoinformation(NASMG) Key Laboratory of Land Environmentand Disaster Monitoring, Xuzhou 221116, China
  • Received:2017-01-23 Online:2017-07-25 Published:2017-08-07

摘要: 获取了22景IW模式的Sentinel-1A/B数据,分别采用PS-InSAR和SBAS-InSAR两种时序技术得到了沧州地区2015年11月至2016年11月期间地表平均沉降速率及累计沉降量。经分析,两种时序监测结果具有较高的一致性,其结果表明:献县、沧县、沧州市区地面表现为回升趋势;青县、沧县东部、南皮县西部、东光县等地区地面沉降量较大,其中东光县何庄村累计下沉量达47 mm,而引起这些区域地面沉降的主要原因为农业生产等带来的地下水开采。本文对基于Sentinel-1A/B SAR数据的时序分析方法在城市沉降监测方面的应用进行了探讨,为有关部门提供了重要的参考数据。

关键词: Sentinel-1, InSAR, 沧州地区, 城市地面沉降

Abstract: The surface average subsidence rate and oumulative subsidence of Cangzhou area from November 2015 to November 2016 were obtained with 22 scences of Sentinel-1A/B SAR imagery respective by PS-InSAR and SBAS-InSAR techniques. The annual and accumulative subsidences from both time-series analysis methods had a high coherence with each other. The monitoring results indicated that the ground surface of Xian County,Cang County,Cangzhou urban area had a rebound trend; Qing County,the east of Cang County,the west of Nanpi County and Dongguang County experienced obvious subsidence, especially the accumulating subsidence in Hezhuang village of Dongguang County reached 47 mm.The main reason leading to these obvious subsidences was the over-exploitation of ground-water for agriculture.Moreover, it discussed the application of Sentinel-1A/B SAR images in monitoring urban subsidence and the results would provide important references for the relevant departments.

Key words: Sentinel-1, InSAR, Cangzhou area, urban land subsidence

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