基于WebGIS的海洋科学数据共享平台的分析与设计

Analysis and Design of WebGIS-based Marine Science Data Sharing Platform

根据国家自然科学基金委青岛海洋科学资料共享服务中心建设的实际情况,从需求分析、系统结构设计、数据建模以及实现技术等几个方面,详细介绍了基于WebGIS的海洋科学数据共享平台建设的思路和方法。在建设过程中,采用用户界面层、业务逻辑层、数据库层的三层架构模式进行系统软件设计,提高了系统的可维护性;运用组件技术进行编码,实现了代码的封装性和可复用性;采用关系型数据库和Netcdf格式相结合来进行数据的存取,解决了海洋数据结构复杂、格式不统一的问题,使查询变得更为方便;利用IDL和ION技术来开发WebGIS,实现了电子海图的漫游、数据查询以及数据统计结果输出。

According to the practical condition of construction of Qingdao Marine Science Data Sharing Service Center, the approach and method of WebGIS-based marine science data sharing platform construction are introduced in detail. In the construction process, a three-layer structure including user interface layer, operation logical layer and database layer was used to make the system software design to improve the system maintainability, the component technology was used to code and realize the packability and reusability of code, the relational database and Netcdf format were used to make the data storage and retrie-val to facilitate the data querying, and the IDL and ION technology was used to develop WebGIS to realize the browse of electronic chart, data querying and output of statistical data.