Organization and storage model of marine information and its application in the "China Digital Ocean"

Based on the experience and achievement of theChina Ocean,the classification plan for Marine data elements is made,which can be classified into five,including marine point elements,marine line elements,marine polygon elements,marine grid elements and marine dynamic elements.In this paper,the technology of features and object-oriented method,a spatial-temporal data model is proposed,which can be applied in the large information system engineering like the Digital Ocean,and this paper discusses the application of spatial data model,marine three-dimensional raster data model and relation data model in the building of Data Warehouse in China Ocean,and concludes the merits of these models.