2023年第3期工程勘察GeotechnicalInvestigation&Surveying59县域城市存量测绘地理信息数据批量向CGCS2000坐标转换的实践探究王显鹏1,曾怀恩2(1.广州市增城区不动产登记中心,广州511300;2.三峡大学土木与建筑学院湖北宜昌443002)摘要:经过历年的城市建设,全国各城市都积累了大量的测绘地理信息数据。按照国家相关要求,2018年6月底前完成全系统各类国土资源空间数据向2000国家大地坐标系转换。本文结合实例,主要探讨县域城市存量测绘地理信息数据转换技术方案,并对转换精度进行简要的分析评价。结果表明,原有1980西安坐标系的测绘地理信息成果经转换后,数据精度基本可以满足规划和自然资源日常管理需要,具有较强的实用性和可靠性。关键词:存量测绘数据;坐标转换;CGCS2000中图分类号:P226+.3文献标识码:AStudyoncoordinatetransformationofexistingsurveyingandmappinggeographicdataatcounty-levelcitytoCGCS2000WangXianpeng1,ZengHuai′en2(1.RealEstateRegistrationCenterofGuangzhouZengchengDistrict,Guangzhou511300,China;2.CollegeCivilEngineering&Architecture,ChinaThreeGorgesUniversity,Yichang443002,China)Abstract:Afteryearsofurbanconstruction,citiesacrossthecountryhaveaccumulatedalargeamountofsurveyingandmappinggeographicinformationdata.Inaccordancewithrelevantnationalrequirements,theconversionofvarioustypesoflandandresourcesspatialdataofthewholesystemtotheCGCS2000willbecompletedbytheendofJune2018.Combinedwithexamples,thispapermainlydiscussesthetechnicalsolutionsfortheconversionofcounty-levelurbanstocksurveyingandmappinggeographicinformationdata,andbrieflyanalyzesthetransformationaccuracy.Theresultsshowthataftertheoriginal1980Xi′ancoordinatesystemsurveyingandmappinggeographicinformationresultsareconverted,thedataaccuracycanbasicallymeettheneedsofplanninganddailymanagementofnaturalresources,andhasstrongpracticabilityandreliability.Keywords:existingsurveyingandmappingdata;coordinatetransformation;CGCS2000收稿日期:2022-01-23;修订日期:2022-03-07基金项目:国家自然科学基金资助项目(42074005);湖北省地质局2021年度科技项目(KJ2021-16).作者简介:王显鹏(1991-),男(汉族),安徽涡阳人,硕士,工程师.0引言我国常见的大地坐标系有1954北京坐标系、1980西安坐标...
