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牛全福,陆铭,马亚娜,等. PS-InSAR技术在兰州市地面形变中的监测应用[J]. 科学技术与工程, 2021, 21(19): 7909-7915.
Niu Quanfu,Lu Ming,Ma Yana,et al.Application of PS InSAR Technology in ground deformation of Lanzhou CityMonitoring application[J].Science Technology and Engineering,2021,21(19):7909-7915.
PS-InSAR技术在兰州市地面形变中的监测应用
Application of PS InSAR Technology in ground deformation of Lanzhou CityMonitoring application
投稿时间:2020-11-12  修订日期:2021-03-15
DOI:
中文关键词:  地面沉降  Sentinel-1A  永久散射体干涉测量  时间序列
英文关键词:land subsidence  sentinel-1a  permanent scatterer interferometry  time series
基金项目:国家自然科学基金“基于GIS的典型黄土区地质灾害致灾因子的优选与地表灾害过程模拟”(41461084).
              
作者单位
牛全福 兰州理工大学土木工程学院
陆铭 兰州理工大学土木工程学院
马亚娜 兰州理工大学土木工程学院
傅键恺 兰州理工大学土木工程学院
张曼 兰州理工大学土木工程学院
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中文摘要:
      近年来,由于城市地表沉降带来的次生灾害后果愈加严重,给城市的发展带来了诸多隐患,因此对城市进行长时间序列的形变监测具有重要的现实意义,而传统的监测方法无法获取城市大面积的地表形变信息。合成孔径雷达遥感(interferometric synthetic aperture radar,InSAR)技术在大规模地表形变监测中具有独特的优势。兰州市地质条件特殊,地貌条件复杂,是我国地质灾害发生频率较大的区域之一。本文采用63景Sentinel-1A和5景Sentinel-1B数据基于永久散射体干涉测量技术(Persistent scatterer interferometric synthetic aperture radar,PS-InSAR)获取了2014年10月至2020年4月的兰州市城区的地面形变场。研究结果表明,兰州市城区地表形变较小,临近城区周边的几处村镇存在着不同程度的沉降,且部分区域的沉降呈现出逐渐加快的趋势。
英文摘要:
      In recent years, the secondary disasters caused by urban surface subsidence have become more serious and have brought many hidden dangers to the development of the city. Therefore, long-term deformation monitoring of the city has important practical significance, while traditional monitoring methods Unable to obtain information on the surface deformation of a large area of the city. Interferometric synthetic aperture radar (InSAR) technology has unique advantages in large-scale surface deformation monitoring. Lanzhou City has special geological conditions and complex geomorphic conditions. It is one of the areas where geological disasters occur frequently in my country. In this paper, 63 scenes of Sentinel-1A and 5 scenes of Sentinel-1B are used to obtain the ground surface of Lanzhou city from October 2014 to April 2020 based on Persistent scatterer interferometric synthetic aperture radar (PS-InSAR). Deformation field. The research results show that the surface deformation in the urban area of Lanzhou is relatively small, and several villages and towns adjacent to the urban area have different degrees of subsidence, and the subsidence in some areas has gradually accelerated.
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