摘要
采用SBAS-InSAR技术处理覆盖昆明市的19景Sentinel1-A数据,首先提取了该市的时序形变速率,然后分析了沉降带分布特征及典型沉降区域,最后对比了在不同时期新旧沉降中心的变化趋势。研究表明:昆明市沉降带空间分布极度不均匀,其沉降区集中分布于滇池东部及东北部,目前部分传统沉降中心沉降趋于缓和,但在金家村-小河咀-滇池会展中心片区已形成新的沉降带,并且最大沉降速率达到-37.6 mm/yr。
In this paper,SBAS-InSAR technology was applied to process 19-scence Sentinel-A images covering Kunming city. At first,the temporal deformation rates of Kunming city were extracted. Subsequently,analysis was made to characterize the distribution of subsidence centers of different periods was compared. The experimental results demonstrated that the subsidence zones in Kunming city were distributed unevenly,most of which were located in the east and northeast of Dian Lake. At present,the deformation in traditional subsidence centers tends to be eased off. Whereas,a new subsidence belt is forming in＂Jinjia Village-Xiaohe Tsui-Dian Lake Convention Centre＂area with a settling rate up to-37.6 mm/yr.
作者
谢文斌
左小清
隋广岩
陆兆峰
周凯
Xie Wenbin1,Zuo Xiaoqing1, Lu Zhaofeng2 , Zhou Kai3(1. Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China; 2. The Institution of Geological Surveying and Mapping, Hangzhou 310030, China; 3. The Second Surveying and Mapping Engineering, Harbin 150081, China)
出处
《城市勘测》
2018年第5期75-79,共5页
Urban Geotechnical Investigation & Surveying
基金
云南省高校工程研究中心建设计划资助
