基于高分辨率SAR数据的地面沉降监测——以印度尼西亚雅加达为例  

Research on subsidence monitoring based on high resolution SAR data: A case study of Jakarta

作　　者：孙张涛 范景辉[2] 王如意 赵红丽[2] 梁源川 刘广[5] Ady Ruchiatan 

机构地区：[1]中国地质图书馆,北京100083 [2]中国国土资源航空物探遥感中心,北京100083 [3]正元地理信息有限责任公司,山东济南250101 [4]空中客车防务与空间公司(中国),北京100027 [5]中国科学院遥感与数字地球研究所,北京100094 [6]印度尼西亚空间技术咨询公司

出　　处：《地质通报》2015年第10期1910-1917,共8页Geological Bulletin of China

基　　金：中国科学院-发展中国家科学院空间减灾卓越中心<亚洲空间减灾科学合作研究项目>;中国地质调查局项目(编号:1212011140042;1212011140040)

摘　　要：地面沉降是中国乃至世界许多地区面临的严重环境地质问题,合成孔雷达干涉测量(In SAR)技术是地面沉降监测的主要手段。雅加达与中国上海、广州等城市在环境上具有相似性,也是21世纪海上丝绸之路的重要节点城市。以雅加达为例研究地面沉降监测方法技术,既为中国沿海城市的地面沉降防治提供借鉴,又为"一带一路"战略提供有用数据。基于2010年6月—2011年3月期间获取的12景3m空间分辨率的Terra SAR-X数据,围绕小基线子集(SBAS)和两轨法开展了研究。SBAS获取的平均沉降速率图显示,在雅加达西北部、东部及靠近东雅加达的勿加泗市北侧有5个明显的沉降中心,最大沉降速率可达9cm/a。对两轨法差分干涉图序列的分析发现,勿加泗市北侧沉降中心2010年12月—2011年1月期间44天的沉降量达到6cm,具有显著的非线性形变特征。研究表明,采用高分辨率SAR数据,合理应用In SAR技术,能够为雅加达及其类似城市的地面沉降防控提供支持。Subsidence is a serious environmental geological problem in China and even in the whole world. Synthetic Aperture Radar Interferometry （InSAR） is being developed as a main method for subsidence monitoring. Many geo-environmental conditions of Jakarta are similar to those in Chinese coastal cities such as Shanghai and Guangzhou. As Jakarta is an important city on the 21st-Century Maritime Silk Road, the research on subsidence monitoring methods in Jakarta can produce experience for the same work in Chinese coastal cities and can also provide valuable information for the ＇One Belt, One Road＇ Initiative. Based on 12 scenes of 3m- resolution TerraSAR-X images acquired between June 2010 and March 2011, the authors studied and applied Small BAseline Subsets （SBAS） and 2-pass differential InSAK （DInSAR） methods. On the average subsidence velocity map produced by SBAS, 5 subsidence cones, which are located in west, north and east Jakarta and the northern part of Bekasi City, can be identified, with the maxi- mum velocity up to 9 cm/a. After analyzing the time series 2-pass DInSA.R interferograms, it was found that the cone in the northern part of Bekasi City had remarkable non-linear character because its subsidence value could reach 6cm in 44 days between December 2010 and January 2011. It can be concluded that high resolution TerraSAR-X data and proper DInSAR methods can support the work of subsidence mitigation in Jakarta and the similar cities.

关 键 词：地面沉降 TERRA SAR-X SBAS 两轨法 雅加达 

分 类 号：P642.26[天文地球—工程地质学]