In EGDI keywords are used for tagging and searching datasets. The keywords are focused on and grouped according to geoscientific topics within a thesaurus management system. The keywords are arranged in a hierarchy and it is possible to register each keyword in many different languages. With the help of the Keyword Thesaurus it is possible to find information in EGDI without knowing the exact keywords the data providers have put on their data sets. Maybe a data set has been registered with the keyword Evaporite. But a user will find this through the EGDI Data Search also by searching for Gypsum because Gypsum is an Evaporite or for instance Yeso (Gypsum in Spanish).

In short the EGDI Keyword Thesaurus is:

  • A collection of more than 2500 geoscientific index terms,
  • grouped into 16 geoscientific search categories,
  • predominantly labeled in English,
  • with translations into different languages (30% of the index terms are available in 22 non-English languages),
  • with unique web addresses (URIs),
  • with links to standardized codelists from INSPIRE and GeoSciML,
  • including links to sources used such as GEMET thesaurus and GBA thesaurus,
  • including relevant index terms from KINDRA and VOGERA and the OneGeology keyword lists,
  • thesaurus-like modeled (SKOS/RDF) in accordance with search use cases and metadata tagging in the metadata catalogue,
  • supplied in RDF format.

Go to the Keyword Thesaurus (opens in a new window).