摘要
讨论了传统时空数据模型的特点,设计了Geodatabase支持下的基于特征-版本的时空数据模型,并详细介绍了该模型的时态逻辑关系和存储结构。该模型节约了数据存储空间,有效保持地理现象的完整性,并具有较高的时空查询效率。针对扎龙湿地,构建了湿地时空数据库,并设计扎龙湿地时态地理信息系统,实现历史重构、地理对象发展与回溯、时空复合查询等功能,有效完成湿地时空数据的管理任务。
The characteristic of traditional spatio-temporal data model is discussed.Supported by Geodatabase,a spatio-temporal data model based on feature-version is designed.The temporal logical relation and storage structure of model is described in detail.The model decreases the storing spaces, keeps the integrity of geographic phenomenon and has efficiency of query.Spatio-temporal database and TGIS of ZhaLong wetland is built subsequently.It manages wetland spatio-temporal data effectively through the realization of historical reconstruction,the development or review of geographic object and spatiotemporal query.
出处
《测绘科学》
CSCD
北大核心
2007年第6期140-142,145,共4页
Science of Surveying and Mapping
基金
国家自然科学基金重点资助项目(50139020)
