全国水利普查空间信息系统的若干关键技术

摘要

针对全国水利普查中对象信息获取、数据资源管理、成果质量控制和项目组织实施等主要难题，提出了“基础数据支撑、数据模型先导、智能工具保障、技术管理融合”的总体技术路线，介绍了全国水利普查空间信息系统的面向对象水利数据建模、数字河流获取、规则约束采集处理、多主题数据应用等关键技术。%We have pioneered research on geospatial information system for national water census and its appl ication.Aiming to the main issues such as information obtaining,data management,qual ity control, and project organization,the overal l thought is given.It is based on taking fundamental data as supporting and data model as precursor,and viewing intel l igent tool as protective role,and combing the management theory with technical methods.The key techniques developed include the digital basin extraction,data model ing orienting to the object of water resources,data acquisition and processing within certain rules and the appl ication of multidimensional theme.