| 基于PS-InSAR和SBAS技术监测南京市地面沉降 |
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| 引用本文： | 高二涛,范冬林,付波霖,雍琦,兰艳萍.基于PS-InSAR和SBAS技术监测南京市地面沉降[J].大地测量与地球动力学,2019,39(2):158-163. |
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| 作者姓名： | 高二涛 范冬林 付波霖 雍琦 兰艳萍 |
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| 作者单位： | 桂林理工大学测绘地理信息学院,桂林市雁山街319号,541006;广西空间信息与测绘重点实验室,桂林市雁山街319号,541006;山西省工业设备安装集团有限公司,太原市新化路8号,030000;桂林理工大学测绘地理信息学院,桂林市雁山街319号,541006 |
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| 基金项目： | 国家自然科学基金;广西自然科学基金;广西空间信息与测绘重点实验室项目;桂林理工大学科研启动基金 |
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| 摘 要： | 利用覆盖南京地区的23幅Sentinel-1A影像，分别采用PS-InSAR技术和SBAS技术进行数据处理，获得了两组研究区域的地表沉降信息，并对两组结果进行交叉验证分析。结果表明，两种方法获取的结果无论是在沉降范围还是在形变量级上，都具有高度的一致性；研究区域在2015-04～2017-01期间存在地面沉降问题，且最大的沉降速率达到-30 mm/a。
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| 关 键 词： | 地面沉降 Sentinel-1A PS-InSAR SBAS |
Land Subsidence Monitoring of Nanjing Area Based on PS-InSAR and SBAS Technology |
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| GAO Ertao,FAN Donglin,FU Bolin,YONG Qi,LAN Yanping.Land Subsidence Monitoring of Nanjing Area Based on PS-InSAR and SBAS Technology[J].Journal of Geodesy and Geodynamics,2019,39(2):158-163. |
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| Authors: | GAO Ertao FAN Donglin FU Bolin YONG Qi LAN Yanping |
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| Abstract: | Due to potential hazards, effective monitoring of land subsidence for urban areas has for a long time been very important. In this study, based on 23 images acquired from Sentinel-1A satellite, the PS-InSAR and SBAS technology as cross validation are used to examine land subsidence of the Nanjing area. The monitoring results indicate that both the range and magnitude of the land subsidence area from PS-InSAR technology agree well with SBAS technology. Moreover, significant land subsidence of the Nanjing area has been detected between April 2015 and January 2017, with the maximum subsidence rate exceeding -30mm/a. |
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| Keywords: | land subsidence Sentinel-1A PS-InSAR SBAS |
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