| 基于D-InSAR三轨法的北京平原区地表形变监测 |
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| 引用本文： | 周琦,赵文吉. 基于D-InSAR三轨法的北京平原区地表形变监测[J]. 地理空间信息, 2013, 11(2): 146-148,154 |
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| 作者姓名： | 周琦 赵文吉 |
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| 作者单位： | 首都师范大学三维信息获取与应用教育部重点实验室,北京,100048 |
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| 基金项目： | 北京市自然科学基金资助项目，北京市教育委员会科技计划重点资助项目 |
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| 摘 要： | 首先阐述了D-InSAR三轨法提取地表形变的基本原理,以北京平原区为实验区域,利用2009年9月到2010年4月间时隔210 d的三景Envisat ASAR数据进行解算,获取了该时间段内北京市城区范围内的整体地表形变,并将其与常规水准测量结果进行比较。结果表明,实验区监测结果范围与传统测量方法累计沉降量等值线吻合较好,D-InSAR三轨法能很好地反映实验区域的地面沉降情况。
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| 关 键 词： | D-InSAR 三轨法 沉降灾害 地表形变 北京城区 平原区 |
Surface Deformation Monitoring of Beijing Plain Area Based on 3-pass D-InSAR Technique |
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| Abstract: | We described the basic principles of the D-InSAR 3-pass method to extract the surface deformation and subsidence at the beginning.Taking Beijing Plain area as the experimental area,using and calculating 3 experiment data which was produced during 09/2009～04/2010 that lasts 210 days,we obtained the overall surface deformation of Beijing urban area limits during that period.We compared the InSAR result with leveling measurement method and the monitoring result of the experiment area.The results show that the 3-pass D-InSAR method can well reflect land subsidence situation of the experimental regional. |
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| Keywords: | D-InSAR 3-pass surface deformation land subsidence Beijing plain area |
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