摘要
为长期有效监测郑州市地表沉降,本文采用SBAS-InSAR (Small baseline subset-Interferometry SAR)技术对29景覆盖郑州城区的Sentinel-1A影像数据进行处理,获得了郑州城区2015.04-2017.03地面沉降速率与累积沉降量。试验表明,郑州中心城区地表稳定,其余区域普遍存在地面沉降现象,主要沉降区为研究区西北部、北部、东部,下沉速率大部分位于0.6 mm/a-6 mm/a区间范围内,其沉降中心分别位于城区西北惠济区与城中金水区,最大下沉速率约为27.4 mm/a,最大累积下沉量约为70.4 mm,该试验结果为郑州城市规划建设提供参考。
In order to effectively monitor the surface subsidence of Zhengzhou City, this paper deals with the Sentinel-1A image data of 29 scenic spots covering Zhengzhou City based on SBAS-InSAR (Small baseline subset-interferometry SAR) technology, and obtains the ground subsidence rate and cumulative subsidence of Zhengzhou City from 2015.04 to 2017.03. The one of settlement center is located in the Huiji District, northwest of the city, the other is village inside the city in Jinshui District. The maximum sinking rate is about 27.4 mm/a, and the maximum cumulative subsidence is about 70.4 mm. The research provides reference for Zhengzhou urban planning and construction.
作者
管力
唐伟
戴华阳
贾智慧
GUAN Li;TANG Wei;DAI Huayang;JIA Zhihui(College of Geoscience and Surveying Engineering, China University of Mining andTechnology (Beijing), Beijing 100083, China)
出处
《北京测绘》
2019年第4期462-467,共6页
Beijing Surveying and Mapping
关键词
小基线集技术
合成孔径雷达干涉
地面沉降
监测
Small Baseline Subset Interferometry Synthetic Aperture Radar (SBAS-InSAR) Technology
Interferometric Synthetic Aperture Radar (InSAR)
land subsidence
monitoring
