本体智能检索在极区冰盖冰架变化分析中的应用

极区冰盖冰架变化随着美国在2003年发射的ICESAT卫星和其星载的天基激光测高系统GLAS对极区的密集数据采集,为实现对极区冰盖质量平衡,地球重力场变化和全球海平面上升等提供了基础研究数据。本文采用从哲学、信息科学发展而来的地理本体技术以实现对极区冰盖高程变化提供智能化检索服务,并试图在构建地理本体知识库的同时详细论述本体智能优化扩展以实现语义的查询。研究表明：基于本体的智能检索应用极区冰盖变化中是可行的。

Application of Ontology-based Intelligent Query in Analyzing Changes of Polar Ice Sheets

With the launched satellite and its onboard ICESAT space-based laser altimeter systems GLAS in United States in 2003,the study of polar ice sheets via the data intensively collection is valuable and important in order to achieve mass balance of ice sheets,earth＇s gravity field change and the level of rising global sea,etc.The paper uses geo-ontology which is developed from philosophy and information science technology to analyze the change of polar sheets and to provide the intelligent access services.At the same time,ontology intelligent optimization and semantic query expansion are discussed based on constructing geographic knowledge database.The research shows that it is feasible to retrieve the change of polar sheets with the application of geography ontology.