第48卷第2期2023年4月Vol.48No.2Apr.2023测绘地理信息JournalofGeomatics面向数字孪生城市的城市地理信息更新赵婧文1,2,3顾建祥1,2吴杭彬31上海市测绘院,上海,2000632自然资源部超大城市自然资源时空大数据分析应用重点实验室,上海,2000633同济大学测绘与地理信息学院,上海,200092UrbanGeographicInformationUpdateOirentedtoDigitalTwinCitiesZHAOJingwen1,2,3GUJianxiang1,2WUHangbin31ShanghaiSurveyingandMappingInstitute,Shanghai200063,China2KeyLaboratoryofSpatial-temporalBigDataAnalysisandApplicationofNaturalResourcesinMegacities,MinistryofNaturalResources,Shanghai200063,China3InstituteofSurveyingandGeo-informatics,TongjiUniversity,Shanghai200092,China摘要:在现今万物互联、虚实交融的背景下,全世界都在探索城市智能运行持续创新的前沿模式和未来发展形态。城市地理信息数据作为与国家安全和社会经济发展密切相关的基础战略信息资源,也是数字孪生城市的重要组成部分,其准确性和时效性有着至关重要的作用。首先,立足政策和环境、机制和技术的角度,总结了面向数字孪生城市的城市地理信息更新的历史与现状;其次,从变化发现的渠道和机制、变化的种类和区域、更新方案和技术方法3个方面探讨了数据更新的关键问题;最后,对城市地理信息高效更新的应用前景进行了展望。关键词:数字孪生城市;城市地理信息;数据更新中图分类号:P208文献标志码:AAbstract:Underthebackgroundthatallthingsareconnectedandthephysicalworldiscombinedwithdigitaltechnology,thewholeworldissearchingforanadvancedandforward-lookingcitydevelopmentmodewithsmartoperationandcon‐tinuousinnovations.Urbangeographicinformationisakindofbasicandstrategicinformationresourcerelatedtonationalsecurityandsocialandeconomicdevelopment,alsoanimpor‐tantpartofdigitaltwincities,whoseaccuracyandtimelinessareofgreatsignificance.First,therenewinghistoryandcur‐rentsituationofurbangeographicinformationfacingdigitaltwincitiesrelatedtopolicy,environment,technologyandmechanismaresummarized.Then,thekeyproblemsofdatarenewalareinvestigatedfromthreeaspects:channelsandmechanismsofchangediscovery,typesandregionsofchange,renewalschemesandrelatedtechnicalmethods.Fi‐nally...