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Remote Sensing Technology and Application  2004, Vol. 19 Issue (5): 379-385    DOI: 10.11873/j.issn.1004-0323.2004.5.379
    
Designing the Metadata System of Qinghai-Tibet Railway Geographical Database Based on Metadata Crosswalks
RAN You-hua
(Cold and Arid Regions Environmental and Engineering Research Institute,ChineseAcademy of Sicenes,Lanzhou730000,China)
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Abstract  

Metadata plays important role in the Qinghai-Tibet railway geographical database which storingand managing a mass of heterogeneous data. There are two types of matadata in this system. One isgeographical metadata, which describes geographical background data、DTM、engineering data of railwayand frozen soil data etc. The other is non-spatial metadata including attribute data and business data whichbe used to describe drill、article and field observation data. Both of metadata adopt different criteria. So it' snecessary to use metadata crosswalks to solve the compositive access to datasets using different metadatacriteria, so as to provide user a high-quality service of search and index. XML is the best choice. Thispaper discusses the applicability of Metadata crosswalks in the Qinghai-Tibet railway geographicaldatabase and implementation questions.

Key words:  Qinghai-Tibet Railway      Metadata crosswalks,      ArcIMS     
Received:  12 February 2004      Published:  26 December 2011
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Cite this article: 

RAN You-hua. Designing the Metadata System of Qinghai-Tibet Railway Geographical Database Based on Metadata Crosswalks. Remote Sensing Technology and Application, 2004, 19(5): 379-385.

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http://www.rsta.ac.cn/EN/10.11873/j.issn.1004-0323.2004.5.379     OR     http://www.rsta.ac.cn/EN/Y2004/V19/I5/379

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