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Research Papers

The Unstructured Data Sharing System for Natural resources and Environment Science Data of the Chinese Academy of Science

Authors:

Dafang Zhuang ,

Institute of Geographical Sciences and Natural Resources Research, CAS, Beijing, PRC, 100101
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Wen Yuan,

Institute of Geographical Sciences and Natural Resources Research, CAS, Beijing, PRC, 100101
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Jiyuan Liu,

Institute of Geographical Sciences and Natural Resources Research, CAS, Beijing, PRC, 100101
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Dongsheng Qiu,

Institute of Geographical Sciences and Natural Resources Research, CAS, Beijing, PRC, 100101
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Tao Ming

Institute of Geographical Sciences and Natural Resources Research, CAS, Beijing, PRC, 100101
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Abstract

The data sharing system for resource and environment science databases of the Chinese Academy of Science (CAS) is of an open three-tiered architecture, which integrates the geographical databases of about 9 institutes of CAS by the mechanism of distributive unstructured data management, metadata integration, catalogue services, and security control. The data tiers consist of several distributive data servers that are located in each CAS institute and support such unstructured data formats as vector files, remote sensing images or other raster files, documents, multi-media files, tables, and other format files. For the spatial data files, format transformation service is provided. The middle tier involves a centralized metadata server, which stores metadata records of data on all data servers. The primary function of this tier is catalog service, supporting the creation, search, browsing, updating, and deletion of catalogs. The client tier involves an integrated client that provides the end-users interfaces to search, browse, and download data or create a catalog and upload data.
DOI: http://doi.org/10.2481/dsj.6.S770
How to Cite: Zhuang, D. et al., (2007). The Unstructured Data Sharing System for Natural resources and Environment Science Data of the Chinese Academy of Science. Data Science Journal. 6, pp.S770–S778. DOI: http://doi.org/10.2481/dsj.6.S770
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Published on 26 Oct 2007.
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