在我国环境监测体系的建设过程中,各种监测系统大多相互独立,缺少统一数据格式和系统规范,环境监测信息共享与可视化问题急待解决;针对此,研究了环境信息集成与共享技术,基于环境信息元数据内容及空问数据库管理引擎,提出了环境监测数据仓库的概念;同时还提出了面向对象的环境监测时空数据建模与时空表达技术;基于上述方法设计实现的环境监测信息共享与时空表达原型系统已投人广州市环境监测体系中测试;结果表明,基于广州市建立的包含信息共享与时空表达的环境监测平台,能够有效地形成一个全面监控环境质量与污染物排放情况的体系,为当地管理部门提供环境监测的数据管理、时空分析和可视化等决策支持服务.%Nowadays most environmental monitoring systems are independent. The lack of a uniform data format and system specification has become an issue regarding data sharing and visualization. This paper investigates various environmental data sharing techniques, including database based on metadata and spatial engine, and proposes an environmental data warehouse system. Moreover, data modeling and visualization are also explored. Based on these, a prototype system of environmental data sharing and visualization is implemented and tested. The results show that our approach is able to form a unified environmental monitoring framework.
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