厦门岛历史围填海岸InSAR地表变形及其对相对海平面的影响

打开文本图片集

中图分类号：F301.24;P901 文献标志码：A 文章编号：2095-1329（2026）01-0046-10

YUZH，HUAZ.IARufaceefoatiooftocaledoastinXasdditsimpctoeatiesleveJaiLand& Resources，2026，47（1）：46-55.

doi：10.3969/j.issn.2095-1329.2026.01.006

InSAR surface deformation of historical reclaimed coastline on Xiamen Island and its impacton relativesea level

YU Zhihao， HUANG Zhaoquan

（1.CollegeofOceanandEarthciences，XiamenUnversity，Xiamen36l12，Fujian，China; 2.FujianEngineeringResearchCenterforOceanRemoteSensingBigData，Xiamen36l1O2，Fujian，China）

Abstract：Accurateasessmentofthetreatposedbyelativesea-lvelsetocoastalcitiesurgentlyrequireshigresolutiondataon landverticaldeformatnHoweer，iareaswithalnghistoryofandamatio，tesurfacedefomatioateisfenassudtobe constant，negletingthespatiotempralvarabiltyofdeformatoncausedbysoilconsodationandumanactivities.Tissudyusing XiamenIslandasanexample，obtainedahigh-resolutionsurfacedeformationfieldusing Sentinel-1SAR images from2015—2019 throughPS-InSARtechnologyandestablishedadecaymodelofsurfacedeformationversusreclamationtime.Theresultsshowthat： （1）SurfacedformationinteclaidareasofXiamenIandexhbitssigniicantspatialheterogeeitywithsignicantsubsidence exceeding 5mm/a still occurring in areas such as the western shore of Yuandang Lake and Gaoqi Airport; （2） The deformation rate in reclaimedareasisnegativelycorelatedwithrlamationtime，typicallstabilizingapproximately2Oyearsafterlandreclamationis completed;（3）Aftercorrctingforlandverticalmovement，therelativesea-levelriserateintheXiamenareaisapproximately 4.7mma Predictions to 21oo indicate that although tectonic uplift will cause the land to rise byapproximately 7.8cm overall，the extreme high waterlevelscausedbyrelativesea-lvelisestilposeaserious treat totherclaimedcoastines.Thisstudyemphasizestenedto considerthe impactofhigh-resolutionsurface deformationand its spatiotemporal dynamics incoastalcityriskasessment.

Keywords： reclamation coast; InSAR surface deformation; relative sea level change

不同于全球海平面变化，在区域尺度上获取高空间分辨率的相对海平面数据，对于评估局地海平面变化的影响至关重要。（剩余14711字）