Current Status of Clearinghouse Activities in GSI HOSHINO Yoshihisa and KAWASE Kazushige Geographical Survey Institute (GSI) Ministry of Land, Infrastructure and Transport Japan

Contents (1) Necessity of clearinghouse and necessary standards to develop it –Standard for description of metadata –Standard for information search and retrieval Status of clearinghouse development

Contents (2) Activities toward development of clearinghouse in Japan –Clearinghouse of GSI –Clearinghouse for ISCGM Future plan

Necessities of clearinghouse Promote geographic information exchange Avoid duplicate investment in geographic information development Materialize the government recognition of its importance

GIS action program of government Encourage municipal governments and universities to register their nodes to GSI clearinghouse gateway by FY 2003 Standardize technical specification for geographic metadata profile of ISO 23950

Necessary standard for clearinghouse development Standard for description of metadata –ISO standard for metadata –Japanese standard for Geographic Information version 2 (2002) –Content Standard for Digital Geographic Metadata (CSDGM) –Others

Development of standard in ISO ISO/TC 211 (established in 1994) ISO series concerned with Geographic Information ISO Geographic Information – Metadata –terminated voting for DIS on

Brief structure of ISO/DIS 19115

Standard for information search and retrieval ISO 23950:1998 –Information and documentation – Information retrieval (Z39.50) – Application service definition and protocol specification –Also standardized as JIS (Japanese Industrial Standard) X 0806:1999

Development of standard in Japan completed the 1st edition of national GI standard brushing up of the above standard 2000 definition of JMP (Japan Metadata Profile, based on ISO/CD ) 2001 revised as JMP1.1a 2002 revised based on ISO/DIS 19115

Simultaneous search and retrieval through an HTTP-Z39.50 gateway Gateway in GSI Q ? A: Found 5 items in total. Found 2 items 東京１ 東京２ ・・・ NY １ NY ２ ・・・ Not found Node in other countries Node in U.S. Node in GSI User Clearinghouse in Japan Node in Australia Q: Search relevant data including “ 東京 ”, “ New York ” and “ Sydney. Q ? Sydney ・・・ Found 2 items Found 1 item Sydney ・・・ 東京１ 東京２ ・・・ NY １ NY ２ ・・・ 東京１ 東京２ ・・・ 東京１ 東京２ ・・・ 東京１ 東京２ ・・・ 東京１ 東京２ ・・・

Registered nodes in GSI clearinghouse 9 nodes of Ministries and Agencies 2 nodes of Universities 3 nodes of juridical persons Other countries’ nodes …

Clearinghouse for ISCGM About 50 metadata for Global Map data have been developed –Laos, Sri Lanka, Nepal, Philippines, Thailand and Japan Added ISCGM node to the GSDI’s clearinghouse gateway

Registration to GSDI gateway

Future plan Technological support to relevant organizations Development of terminology, thesaurus, gazetteer Useful gateway to lead to resources as one wishes Multilingual support to establish international clearinghouse by the synonymous list If you type “Tokyo” and search, then … 東京东京 Tokio ・・・

Synonymous setup in clearinghouse software “Isite” # Rows of the form: # parent phrase = child1+child2+multiword child+... +childN # # White space is ignored at the start and end of child terms # Comments start with # spatial=geospatial+geographic+terrestrial # Here are more comments land use=land cover + land characterization + land surface + ownership property wetlands=wet land+NWI+hydric soil+inundated hydrography=stream+river+spring+lake+pond+aqueduct+siphon+well hypsography=elevation + relief + topography + contour 画像 ＝ 图象

stored metadata written in Japanese stored metadata written in Chinese Gateway 画像 or 图象 画像图象

Thank you very much! Rainbow view from GSI building