| 全国及部分省市地区高精度、高分辨率大地水准面的研究及其实施 |
| |
| 引用本文： | 陈俊勇,李建成,宁津生,晁定波.全国及部分省市地区高精度、高分辨率大地水准面的研究及其实施[J].武汉大学学报(信息科学版),2006,31(4):283-288. |
| |
| 作者姓名： | 陈俊勇 李建成 宁津生 晁定波 |
| |
| 作者单位： | 1. 国家基础地理信息中心,北京市紫竹院百胜村1号,100044
2. 武汉大学测绘学院,武汉市珞喻路129号,430079 |
| |
| 摘 要： | 结合我国重力和地形资料及国内外较优的重力场模型，研制了适合我国重力场特征的360阶重力场模型WDM94，建立了中国新一代包括全部陆海国土的dm级（似）大地水准面CQG2000，建立了中国以GPS／水准为基础的高程异常控制网，利用海洋卫星测高数据进行我国海洋大地水准面的计算、我国陆地重力（似）大地水准面的研制厦我国陆海（似）大地水准面的拼接；研制了江苏省、海南省、深圳市、大连市、南京市及南水北调西线工程具有cm级精度的省市地区（似）大地水准面模型；结合GPS技术和高精度（似）大地水准面模型，研制了GPS测图软硬件一体化系统。
|
| 关 键 词： | (似)大地水准面 重力场模型 GPS/水准 |
| 文章编号： | 1671-8860(2006)04-0283-06 |
| 修稿时间： | 2006年1月10日 |
Study and Implementation of Quasi Geoid Models with High Precision and Resolution in China and Its Some Provinces and Cities |
| |
| CHEN Junyong,LI Jiancheng,NING Jinsheng,CHAO Dingbo.Study and Implementation of Quasi Geoid Models with High Precision and Resolution in China and Its Some Provinces and Cities[J].Geomatics and Information Science of Wuhan University,2006,31(4):283-288. |
| |
| Authors: | CHEN Junyong LI Jiancheng NING Jinsheng CHAO Dingbo |
| |
| Abstract: | A 360 order gravity field model WDM94 has been established based on the Chinese topography and its own gravity data combined with the world wide data.A Chinese new quasi geoid CQG2000 with dm level accuracy has been determined with the Chinese GPS/leveling network,land gravity data,and altimetry data.CQG2000 covers the all Chinese territory,land and ocean.The merge of the land geoid and ocean geoid in China has been carefully studied and completed successfully.Besides,the local geoids with cm magnitude accuracy level in Jiangsu,Hainan,Shenzhen,Dalian and the west wing of "South Water Towards the North" are also determined.For the further utilization of the quasi geoid in mapping the "GPS-Mapping Software and Hardware in a Whole System" has been studied and compiled. |
| |
| Keywords: | CQG2000 |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
