昆明2000平面坐标系统设计与实现  

Design and Implementation of Kunming 2000 Plane Coordinate System

作　　者：魏保峰 陈国平[2] 李宁 赵文东 李强军 WEI Baofeng;CHEN Guoping;LI Ning;ZHAO Wendong;LI Qiangjun(Kunming Surveying and Mapping Institute,Kunming 650051,China;Faculty of Land Resource Engineering,Kunming University of Science and Technology,Kunming 650093,China;Yunnan Surveying and Mapping Institute,Kunming 650218,China)

机构地区：[1]昆明市测绘研究院,云南昆明650051 [2]昆明理工大学国土资源工程学院,云南昆明650093 [3]云南省地矿测绘院,云南昆明650218

出　　处：《地理空间信息》2023年第5期102-106,共5页Geospatial Information

基　　金：住房和城乡建设部科学项目计划资助项目(2015-R2-072、2014-R2-032)。

摘　　要：高原城市地形破碎、范围广、落差大,原城市相对独立平面坐标系采用的椭球参数、投影面等存在差异,已不能满足城市建设快速扩张和经济社会发展要求。设计了一种通过DEM和行政区地理位置加权来建立城市坐标系统的方法,在最大范围覆盖行政区域面积的基础上,减少了中央子午线和投影抵偿面的设置数量;并以昆明市为例进行了合理性验证。结果表明,各项指标达到规范要求,该方法对于建立类似高落差城市平面坐标系具有重要的借鉴意义。The terrain of plateau city is broken,wide range and large drop,because of the ellipsoid parameters and projection plane different in the original urban relatively independent plane coordinate system,which can not meet the inevitable requirements of rapid expansion of urban construction and economic social development.We designed a method to establish urban coordinates based on DEM and weighted administrative location,which could cover the administrative area to the maximum extent and reduce the number of central meridian and projection offset planes.Taking Kunming City for example,we verified the rationality of this method.The test result shows that the indicators meet the requirements of specification.This method can be used for reference in the plane coordinate system establishment of similar high drop cities.

关 键 词：CGCS2000 高原城市 DEM 地理位置 多投影面 

分 类 号：P226[天文地球—大地测量学与测量工程]