海岸带空间地理数据垂直基准的统一

发布时间：2018-05-27 04:33

本文选题：海岸带 + 垂直基准　；参考：《海洋技术学报》2016年03期

【摘要】：海岸带不同的垂直基准严重地妨碍空间地理数据的集成,垂直基准的统一已是迫切需要解决的任务。分析了我国垂直基准的现状,研究了大地水准面作为统一的垂直基准面的不足与局限性,阐述了选择参考椭球面作为统一的垂直基准面的理由和优点,以及建议在陆地采用大地水准面作为次级的垂直基准表示高程,在海洋采用理论深度基准面作为次级垂直基准表示水深,并采用WGS84参考椭球面进行垂直基准的统一。同时,还给出了陆地高程基准的转换关系和方法,以及海域深度基准的转换关系和归算方法。研究成果将使已有的大量海陆测绘资料得到更好的应用,从而为我国的社会经济、国防和海岸带的可持续发展提供更加强有力的测绘保障。
[Abstract]:The integration of spatial geographic data is seriously hindered by different vertical datum in coastal zone. The unification of vertical datum is an urgent task to be solved. This paper analyzes the present situation of the vertical datum in China, studies the deficiency and limitation of the geoid as the unified vertical datum, and expounds the reasons and advantages of choosing the reference ellipsoid as the unified vertical datum. It is suggested that the geoid be used as the secondary vertical datum to represent the elevation, the theoretical depth datum as the secondary vertical datum to represent the water depth in the sea, and the WGS84 reference ellipsoid be used to unify the vertical datum. At the same time, the conversion relation and method of land elevation datum and depth datum of sea area are also given. The research results will make a large number of land and sea mapping data better applied, thus providing a more powerful mapping guarantee for the social economy, national defense and the sustainable development of the coastal zone in China.
【作者单位】：海军大连舰艇学院海洋测绘系;中国人民解放军92899部队;中国科学院地理科学与资源研究所;
【基金】：国家高技术研究发展计划(863计划)资助项目(2012AA12A406) 国家自然科学基金资助项目(40371097,40971224,41271409) 海军大连舰艇学院2110工程三期资助学术预研课题(DLJY-XY2015018)
【分类号】：P229

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