高精度海域似大地水准面模型的建立  

Establish of High-precision Quasi Geoid Model on Sea Area

作　　者：刘立[1] 张乙志 温旭[1] 李凉 初理伟 LIU Li ZHANG Yizhi WEN Xu LI Liang CHU Liwei(The First Surveying and Mapping Institue of Zhejiang Province, Hangzhou 30100,China ZheJiang Quality Inspection Institute of Surveying And Mapping Achievements, Hangzhou 30100, China)

机构地区：[1]浙江省第一测绘院,浙江杭州310012 [2]浙江省测绘质量监督检验站,浙江杭州310012

出　　处：《全球定位系统》2017年第3期70-72,共3页Gnss World of China

摘　　要：建立高分辨率、高精度的区域似大地水准面已成为信息化测绘体系建设、数字城市建设所必需的基本条件,尤其在地形图测绘、海洋调查等方面,对厘米级似大地水准面的需求十分迫切。本文基于新理论计算方法、重力场模型和融合技术建立高精度海域似大地水准面模型,厘米级的海域似大地水准面模型的建立对沿海地区快速获取高程信息很有意义,弥补了海域的空白。The establishment of regional quasi geoid with high resolution and high accu racy has become the essential condition for the construction of digital surveying and mapping system and the construction of Digital City. Especially in Topographic Map Survey and ocea- nographic survey, the demand of centimeter level geoid is very urgent. This paper Based on the new theoretical calculation method, the gravity field model and the fusion technology, The establishment of geoid model in centimeter class sea area is very meaningful for rapid el- evation of coastal area information, and makes up for the gap of sea area.

关 键 词：似大地水准面 高精度 重力场模型 

分 类 号：P228.4[天文地球—大地测量学与测量工程]