利用不确定度的海底数字高程模型构建

基金项目: 国家自然科学基金资助项目(40671161,40871207)

详细信息

Seabed DEM Construction Based on Uncertainty

¹ Department of Hydrography and Cartography,Dalian Naval Academy,667 Jiefang Road,Dalian 116018,China;² Naval Institute of Hydrographic Surveying and Charting,40 Youyi Road,Tianjin 300061,China

Funds: 国家自然科学基金资助项目(40671161,40871207)

摘要: 综合考虑水深点不确定度信息和距离对格网节点的影响,提出了利用不确定度和距离联合确定权函数方法构建海底数字高程模型(DEM)。利用不确定度信息传递模型和海底DEM格网分辨率选取标准,在DEM精度和数据容量之间保持平衡,为生成多种形式、满足多种需要的海洋数字产品提供了基础。
- 不确定度 /
- 格网 /
- 权函数 /
- 海底数字高程模型(DEM) /
- 海洋数字产品
Abstract: The effect of soundings uncertainty information and distance to grid nods is considered,a technique of Submarine digital elevation model(DEM) construct method from multibeam data by weight function which combine uncertainty information and distance is presented,which have preferable precision.Uncertainty propagation model and DEM grid resolution standard give chance preserving suffice raw information of soundings,and provide the base of product multiform ocean numeric productions.
- uncertainty /
- grid /
- weight function /
- seabed digital elevation model(DEM) /
- ocean numeric production