基于CGCS2000的漳州城市坐标系探讨  

Exploration of Urban Coordinate System of Zhangzhou Based on CGCS2000

作　　者：郭明捷 GUO Mingjie(Zhangzhou Institute of Surveying and Mapping,Zhangzhou,Fujian Province,363005 China)

机构地区：[1]漳州市测绘设计研究院,福建漳州363005

出　　处：《科技资讯》2024年第22期161-164,共4页Science & Technology Information

摘　　要：随着原有的城市独立坐标系被停用,2000国家大地坐标系(China Geodetic Coordinate System 2000,CGCS2000)的应用推广,在城市日常规划、建设、验收等相关测绘作业中,存在实测距离直接投影到标准分带的CGCS2000的长度形变不符合相关规范的问题。结合福建省漳州市中心城区的实际情况,探讨了采用117°40′自定义中央子午线,以任意带高斯投影于CGCS2000椭球建立漳州城市坐标系的合规性和可行性。With the discontinuation of the original urban independent coordinate system and the application and promotion of China Geodetic Coordinate System 2000(CGCS2000),there is a problem that the length deformation of the CGCS2000 directly projected by the measured distance to the standard zoning does not comply with the rel⁃evant specifications in the daily urban planning,construction,acceptance and other related surveying and mapping operations.Combined with the actual situation of the central urban area of Zhangzhou,Fujian Province,it discuss the compliance and feasibility of using a 117°40′custom central meridian to establish the coordinate system of Zhangzhou City with an arbitrary Gaussian projection on a CGCS2000 ellipsoid.

关 键 词：城市坐标系 投影变形 2000国家大地坐标系 中央子午线 

分 类 号：P226.3[天文地球—大地测量学与测量工程]