理论与方法

国家资源与环境数据库的元数据库系统建设

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  • 中国科学院地理科学与资源研究资源与环境信息系统国家重点实验室, 北京 100101
曹彦荣 (1974-), 男, 甘肃临洮人, 博士研究生, 主要从事空间元数据, 地理信息服务研究。E-mail: caoyr@lreis.ac.cn

收稿日期: 2002-09-06

  修回日期: 2002-10-09

  网络出版日期: 2002-12-25

基金资助

中科院知识创新工程项目 (KZCX2-308-02);“十五”国家攻关课题 (2001BA608B-01)

Construction of National Resource and Environment Spatial Database

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  • State Key Laboratory of Resources and Environment Information System, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China

Received date: 2002-09-06

  Revised date: 2002-10-09

  Online published: 2002-12-25

Supported by

Knowledge Innovation Project of CAS, No.KZCX2-308-02; National Key Project of the Tenth-Five Year Plan, No.2001BA608B-01

摘要

概述了国家资源与环境数据库元数据标准的制定方案与元数据管理系统的开发,并着重就元数据建设中出现的若干问题进行初步探讨。在建设元数据库过程中,元数据本身的数据质量的不高,降低了元数据的意义,并相应降低了数据的可获取程度,本文提出了把多级可扩展元数据的模型与分类元数据相结合用以提高元数据质量。如何更有效地利用元数据进行科学研究,也是一个重要研究课题,本文提出了元数据由被动服务转向主动服务的扩大服务范围的方法。

本文引用格式

曹彦荣,何建邦,李新通,毕建涛 . 国家资源与环境数据库的元数据库系统建设[J]. 地理学报, 2002 , 57(7s) : 27 -31 . DOI: 10.11821/xb20027s004

Abstract

The paper examines how to establish metadata standard and metadata management system of National Resource and Environment Spatial Database. It also discusses some issues concerning the construction of metadata database of National Resource and Environment Database. In the construction, low quality of metadata results in depression of metadata's function and acquirability of the datum. Additionally, this paper gives a new direction of metadata-base research. According to multi-layer metadata model, it combines extensible metadata model with inhomogeneous metadata to improve metadata quality. This paper also puts forward a method that can make metadata-based service convert from passive mode to initiative mode.

参考文献


[1] He Jianbang, Jiang Jintong, Liu Ruomei. Research of geographic information standardization. Geographic Information World, 1998, (2): 8-12.
[何建邦, 蒋景瞳, 刘若梅. 地理信息标准化研究与思考. 地理信息世界, 1998, (2): 8-12.]

[2] Cao Yanrong, Wu Hongqiao, Bi Jiantao. The research of metadata management of national resource and environment spatial database. Geo-Information Science, 2002, 4(2): 6-10.
[曹彦荣, 吴洪桥, 毕建涛. 国家资源与环境数据库元数据管理研究. 地球信息科学, 2002, 4(2): 6-10.]

[3] Huang Yuxia. The method of geographical information semantic sharing and its experimental application. Thesis for Doctoral Degree of CAS, 1999.
[黄裕霞. 地理信息语义共享方法及其应用实验. 中国科学院博士学位论文, 1999.]

[4] ESRI, http://www.esri.com

[5] Li Qinshuang, Zhang Yongsheng. Data organization and metadata structure design of WebGIS. Journal of Institute of Surveying and Mapping, 2001, 18(3): 201-203.
[李勤爽, 张永生. WebGIS数据的组织与元数据结构设计. 测绘学院学报, 2001, 18(3): 201-203.]

[6] Matthias Zingler. Architectural Components for Metadata Management in Earth Observation. http://www.ieee.org/

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