典型海湾区域海洋测绘中垂直基准的构建研究  

Vertical Datum Establishment in Hydrographic Surveying and Charting of a Typical Gulf Region

作　　者：许家琨[1] 吕界栋 王双喜[1] 欧阳永忠[2] 申家双[2] 周绍炜[1] 

机构地区：[1]92899部队 [2]海军海洋测绘研究所

出　　处：《海洋测绘》2013年第4期31-34,共4页Hydrographic Surveying and Charting

摘　　要：以典型的海湾区域为例,基于可行实用原则并保证精度的情况下,对陆海垂直基准的传递和统一进行研究,结合平均海面传递和GPS高程拟合方法,构建了典型海湾区域统一的海洋测绘垂直基准,实现了海湾区域海洋测绘中海岸地形图和水深图的无缝拼接。通过实例研究表明:研究路线正确,选择方法可行,成果精度符合《规范》要求,满足海湾区域测图的需要。Taking a typical gulf region for example, the paper studies the transfer and unification of land and sea vertical datum according to practical principles and accuracy. This paper combines methods of MSL transfer and GPS height fitting to set up the unified vertical datum in the typical gulf region. It carries out the seamless contiguity of coastal topographic maps and bathymetric charts. The study shows that the algorithm is feasible and the technique route is very correct, and it can meet the demands of mapping in gulf regions.

关 键 词：海洋测绘 典型海湾 垂直基准 GPS高程拟合 当地平均海面 

分 类 号：P224[天文地球—大地测量学与测量工程]