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WMO

World Meteorological Organization (WMO) Observing and Information Systems Department WMO Information System (WIS). WMO. WIS and Catalogs of Data and Information. Presented by Eliot Christian <echristian@wmo.int> Senior Scientific Officer for WIS. What is the objective?.

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WMO

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  1. World Meteorological Organization (WMO)Observing and Information Systems DepartmentWMO Information System (WIS) WMO WIS and Catalogs of Data and Information Presented by Eliot Christian <echristian@wmo.int>Senior Scientific Officer for WIS

  2. What is the objective? Make it easier to discover data and information WIS Overview

  3. What is the general approach? Use common standards focused on search interoperability WIS Overview

  4. Interoperability Definition: differences among systems are not a barrier to a task that spans those systems "What few things must be the same so that everything else can be different" WIS Overview

  5. document author title e-mail from subject news article by-line headline file owner file name scientific data set principal investigator data set name biological specimen collector organism name spatial coverage originator title Interoperability with Semantics "semantic mapping" associates concepts that are close enough for the purpose: What is its name? What type is it? Who made it? WIS Overview

  6. Information Items Have Characteristics Who made it? What type is it? What is its name? Where is it stored? Is it free? WIS Overview

  7. Web Index Bibliographic Records Search Catalogs, Directories Data Index Characteristics Can Be Indexed Searching works on indexes of "documents" Documents may be Web pages, entries in catalogs or directories, ... any resource WIS Overview

  8. The Result of Searching • A search result set ("hit list") contains documents satisfying selection criteria e.g. the word "oil" occurs in the document title and the word "water" does not occur in the title • A search result set is rank ordered, typically using "relevance ranking" or date/time Note: Search technologies often compete on ranking algorithms--may be trade secrets WIS Overview

  9. Using Interoperable Search No single search technology handles all types of sources (meteorological data, geospatial data, chemical data, multi-media data, ...) "Interoperable search" can span multiple, separately operated information indexes: • an index of Web pages, an catalog of weather observations, a directory of technical reports, a catalog of library holdings, etc. WIS Overview

  10. latitude, longitude boundaries terms, etc. ISO 23950 Search Standard http://www.search.gov/gsdi/sru2kml.php? operation=searchRetrieve&version=1.1&  maximumRecords=100&recordSchema=XML&  query=(geo.bounds within/partial/nwse "43.772 -101.411 31.7723 -77.7499") and (geo.keywords any "biologic ecologic") WIS Overview

  11. ISO 23950 Search Standard WIS Overview

  12. Interoperate with External Portals WIS Overview

  13. Interoperate with Library Catalogs WIS Overview

  14. Retrieve Open Library Content WIS Overview

  15. Making it easier to discover WMO data and information WIS Overview

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