LusTRE is the Linked Thesaurus fRamework for Environment developed in eENVplus aiming to provide shared standard and scientific terms for a common understanding of environmental data among the different communities operating in the different fields of the Environment. .
LusTRE consists of a compilation of various environmental thesauri and the interlinking between the concepts addressed by them. Thesauri in the framework are exposed as a collection of SKOS concept schemes, which provides lightweight semantics for thesaurus concepts.
It shall support better metadata compilation and metadata discovery for describing and finding data and services. In particular, the main goal of having such a framework is to be able to preserve and retrieve the information based on the semantic definitions, rather than just lexical keywords.
Try the eENVplus Thesaurus Framework for the Environment