基于StaMPS的上海区域地表形变研究  

Study on land surface deformation of Shanghai with StaMPS

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作  者:杨雨媚 王霞迎 YANG Yumei;WANG Xiaying(School of Surveying and Geoinformation Engineering,East China University of Technology,Nanchang Jiangxi 330013,China;Key Laboratory of Mine Environmental Monitoring and Improving around Poyang Lake of Ministry of Natural Resources,East China University of Technology,Nanchang Jiangxi 330013,China;Jiangxi Province Engineering Research Center of Surveying,Mapping and Geographic Information,Nanchang Jiangxi China)

机构地区:[1]东华理工大学测绘与空间信息工程学院,江西南昌330013 [2]东华理工大学自然资源部环鄱阳湖区域矿山环境监测与治理重点实验室,江西南昌330013 [3]江西省测绘地理信息工程技术研究中心,江西南昌330025

出  处:《北京测绘》2023年第10期1397-1401,共5页Beijing Surveying and Mapping

基  金:江西省教育厅科学技术研究项目(GJJ210722);东华理工大学博士启动基金(DHBK2019187)。

摘  要:为了及时掌握上海地区的沉降状态,更新沉降结果,本文通过获取覆盖上海市2020—2021年的哨兵1A(Sentinel-1A)影像数据,基于大气产品进行误差去除,用斯坦福永久散射体干涉(StaMPS)技术对上海地区进行时序监测。结果显示,研究区域永久散射体(PS)点平均形变速率为-10.4~6.5 mm/a,主要标准差区间在-2~2 mm/a,沉降主要发生在浦东新区和主城区的部分地区。同时,通过与小基线集技术(SBAS-InSAR)结果及相关文献对比验证,形变结果较为一致,说明该技术获取上海地区结果的正确性及适用性。最后,分析了5个典型沉降区及上海地铁14号、18号线沉降区域来说明沉降形成原因。In order to grasp the settlement status of Shanghai in time and update the settlement results,this paper obtains Sentinel-1A image data covering Shanghai for the past two years from 2020 to 2021,performs error removal based on atmospheric products,and monitors the timing of Stanford permanent scatterer interferometry(StaMPS)technology.The results showed that the average deformation rate of PS points in the study area was-10.4~6.5 mm/a,the main standard deviation interval was-2~2 mm/a,and the settlement mainly occurred in some areas of Pudong New Area and the main urban area.At the same time,by comparing and verifying with the results of small baseline subset(SBAS)-InSAR technology and related literature,the deformation results are consistent,indicating the correctness and applicability of this technique to obtain the results in Shanghai.Finally,five typical settlement zones and the settlement of Shanghai Metro Lines 14 and 18 were analyzed to illustrate the causes of settlement.

关 键 词:斯坦福永久散射体干涉(StaMPS) 上海 形变 通用型大气校正在线服务(GACOS) 

分 类 号:P258[天文地球—测绘科学与技术]

 

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