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雄安新区2017—2019年地面沉降SBAS-InSAR监测与分析

冉培廉1, 李少达1, 戴可人1,2, 杨晓霞1, 曾森1,3, 冉中鑫1,4

1.成都理工大学地球科学学院，四川 成都  610059;2.成都理工大学 地质灾害防治与地质环境保护国家重点试验室，四川 成都  610059;3.四川省自然资源厅信息中心，四川 成都 610059;4.长江水利委员会水文局汉江水文水资源勘测局，湖北 襄阳 441100

摘要:为了掌握雄安新区地面沉降情况，基于短基线干涉测量技术（small baseline subset interferometry，SBAS-InSAR）利用2017—2019年获取的32景Sentinel-1B影像，提取雄安新区地面年平均沉降速率和累积沉降量，并从地理空间上分析雄安新区地面沉降原因。结果表明：雄安新区大部分区域较稳定，地面沉降主要集中在该区南部和北部，其南、北部地面沉降速率分别高达90，80 mm/a，该区地面沉降与地热资源及地下水的过度开采有关。随着雄安新区的快速发展，SBAS-InSAR监测结果对该区可持续发展具有重要参考价值。

关键词:Sentinel-1B;SBAS-InSAR;雄安新区;地面沉降;沉降影响因素;地理空间分析

doi:10.16186/j.cnki.1673-9787.2020110009

基金项目:国家自然科学基金资助项目（41771444）

收稿日期:2020/11/02

修回日期:2020/12/15

出版日期:2022/05/15

SBAS-InSAR monitoring and analysis of land subsidence in Xiongan New Area from 2017 to 2019

RAN Peilian1, LI Shaoda1, DAI Keren1,2, YANG Xiaoxia1, ZENG Sen1,3, RAN Zhongxin1,4

1.College of Earth Sciences，Chengdu University of Technology，Chengdu  610059，Sichuan， China;2.State Key Laboratory of Geohazard Prevention and Geoenvironment Protection，Chengdu University of Technology，Chengdu  610059 ， Sichuan， China;3.Information Centre， Department of Natural Resources of Sichuan Province， Chengdu  610059 ， Sichuan， China;4.Hanjiang River Bureau of Hydrology and Water Resources Survey， Bureau of Hydrology ，Changjiang Water Resources Commission，Xiangyang  441100， Hubei， China

Abstract:In order to master the land subsidence of Xiongan New Area,32 Sentinel-1Bimages covering the Xiongan New Area from 2017 to 2019 were selected to extract the annual average subsidence rate and accumu- lated subsidence of Xiongan New Area by SBAS-InSAR technology,and the causes of land subsidence from the geographical space in Xiongan New Area were analyzed. The results showed that most areas of Xiongan New Area were relatively stab. The land subsidence was mainly concentrated in the north and south of Xiongan New Area. The subsidence rate in the north of Xiongan New Area was as high as 80 mm/a,and that in the south of Xiongan New Area was as high as 90 mm/a. The land subsidence in Xiongan New Area was related to the over exploitation of geothermal resources and groundwater. With the rapid development of Xiongan New Area,the re- search results of InSAR could provide important reference values for the sustainable development of Xiongan New Area.

Key words:Sentinel-1 B;SBAS-InSAR;Xiongan New Area;land subsidence;subsidence affecting factor;geospatial analysis

雄安新区2017—2019...AS-InSAR监测与分析_冉培廉.pdf