摘要
近年来 ,地球空间数据获取手段的拓宽使其数据量激增。从空间海量数据中快速获取目标数据 ,必须依赖于元数据。本文首先介绍了地球空间元数据的研究状况 ,然后详细分析了地球空间元数据在各领域的使用方法、存在问题 。
s Firstly,the paper investigates the problem of studies and usage of geo spatial metadata, and give one study pattern for geo spatial metadata The paper focuses on four usage field of geo spatial metadata which is list as follow: geo spatial data management, general usage, geographical information system applications and geo spatial data integration In each topic, the author analyze thoroughly geo spatial metadata effective, usage method, existing problem and suggested solving plans Finally, the paper investigates storage and management patterns of geo spatial metadata
出处
《地球信息科学》
CSCD
2000年第3期8-13,共6页
Geo-information Science
关键词
地球空间元数据
地理信息系统
数据集成
Geo spatial metadata Geographical Information System Spatial data integration
