海洋GIS时空数据模型与应用

本文主要对已有的时空数据模型、海洋时空数据模型研究进展进行了评述,指出了各种模型的优点以及存在的问题;在此基础上,着重阐述了ArcGIS海洋数据模型中针对海洋要素产品时空数据的组织方法,并通过建立多维时空索引的方式对其进行改进,并运用到了"数字海洋"原型系统项目中。在一定程度上实现了"数字海洋"原型系统中海洋要素产品时空数据的组织与存储和可视化表达,取得了良好的效果。

Marine GIS spatio-temporal data models and their applications

The authors of this paper mainly reviewed the research on the existing spatio-temporal data models and pointed out their advantages and problems firstly.Furthormore,the organization method for marine element product data in the ArcGIS marine data model was emphasized.Then,an improvement for that method was proposed by establishing a multi-dimensional spatio-temporal index approach.By applying the improved solution to the China Digital Ocean Prototype System project (CDOPS),its feasibility was validated and the organization、storage and visualization expression of spatio-temporal data of marine element product in CDOPS were realized.At last,the research direction of spatio-temporal data models was brief discussed.