| 面向地理空间数据更新的数据同化 |
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| 引用本文： | 安晓亚,孙群,肖强,李少梅.面向地理空间数据更新的数据同化[J].测绘学院学报,2010(2). |
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| 作者姓名： | 安晓亚 孙群 肖强 李少梅 |
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| 作者单位： | 信息工程大学测绘学院; |
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| 基金项目： | 国家863计划资助项目(2007AA12Z206);;国家自然科学基金资助项目(40501058;40401052) |
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| 摘 要： | 针对目前地理空间数据整合与持续高效更新存在的问题,将数据同化这一概念和思想引入地理空间数据的更新,目的是提高空间数据质量和空间数据库更新的效率。着重论述了地理空间数据同化的概念、内涵和关键技术。最后提出了地理事件-条件-操作GECA(Geographical Event-Condition-Action)规则驱动下的基于数据同化的地理空间数据更新机制。
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| 关 键 词： | 地理空间数据 空间数据更新 数据同化 地理事件-条件-操作规则 地理事件 |
Data Assimilation for Updating Geospatial Database |
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| AN Xiao-ya,SUN Qun,XIAO Qiang,LI Shao-mei.Data Assimilation for Updating Geospatial Database[J].Journal of Institute of Surveying and Mapping,2010(2). |
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| Authors: | AN Xiao-ya SUN Qun XIAO Qiang LI Shao-mei |
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| Institution: | Institute of Surveying and Mapping;Information Engineering University;Zhengzhou 450052;China |
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| Abstract: | There exist many problems in integrating and efficiently updating geospatial data at the present time.In accordance with this,a concept of data assimilation for updating geospatial data was imtroduced.The purpose was to improve the quality and updating efficiency of geospatial data.The concept,connotation and key technologies of multi-source geospatial data assimilation were described.Finally,the geospatial data updating mechanism driven GECA(Geographic Event-Condition-Action) rules was presented based on d... |
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| Keywords: | geospatial data updating geospatial data data assimilation GECA rules geographical event |
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