【摘要】 以渤海区域地质信息管理系统数据模型为例 ,阐述了基于GIS的海洋地学管理信息系统中数据的组织方法 ,包括数据分类、分层方案、命名及编码规则、空间数据库和属性数据库的建设以及两者之间的关系 .通过设置基础表 ,解决了系统中说明性信息难以代码化的难题 ,并在此基础上设计了系统的数据模型更多还原

【Abstract】 Data are basic element of GIS (geographic information system). Organizing methods of spatial data for the regional geology of the Bohai Sea are proposed. These methods include data standard, such as classifying,layering,naming and how to form spatial database, attribute database and the relation among them. With a basic table,the problem of coding expanded data can be easily resolved. Based on the result of methods, a new data model is given.更多还原