550 Earth sciences

Australian Soil Classification

"Welcome to the Revised Edition of the Australian Soil Classification. The information provided here is intended as an on-line facility for all interested parties to assist with soil classification work. It is recommended, however, if any extended work is to be undertaken, that obtaining the book would be beneficial as it is convenient to use in the field where most soil description and classification takes place."

"Welcome to the Revised Edition of the Australian Soil Classification. The information provided here is intended as an on-line facility for all interested parties to assist with soil classification work. It is recommended, however, if any extended work is to be undertaken, that obtaining the book would be beneficial as it is convenient to use in the field where most soil description and classification takes place."

GeoRef Thesaurus

"The 11th edition of the GeoRef Thesaurus contains more than 30,800 controlled vocabulary terms and the complete GeoRef indexing structure. The Thesaurus is an indispensable tool for efficient searching of the GeoRef database."

"The 11th edition of the GeoRef Thesaurus contains more than 30,800 controlled vocabulary terms and the complete GeoRef indexing structure. The Thesaurus is an indispensable tool for efficient searching of the GeoRef database."

Environment Ontology

"The Environment Ontology (EnvO) provides a controlled, structured vocabulary that is designed to support the annotation of any organism or biological sample with environment descriptors. EnvO contains terms for biomes, environmental features, and environmental material." EnvO enables "a concise, standardised, and comprehensive description of environment that is key to the integration, archiving and federated searching of environmental data. As a tool for the life sciences, we see EnvO bringing benefits similar to those of the Gene Ontology (GO).

Soil Taxonomy

"The publication Keys to Soil Taxonomy serves two purposes. It provides the taxonomic keys necessary for the classification of soils in a form that can be used easily in the field. It also acquaints users of the taxonomic system with recent changes in the system. The eleventh edition of the Keys to Soil Taxonomy incorporates all changes approved since the publication of the second edition of Soil Taxonomy: A Basic System of Soil Classification for Making and Interpreting Soil Surveys (1999).

"The publication Keys to Soil Taxonomy serves two purposes. It provides the taxonomic keys necessary for the classification of soils in a form that can be used easily in the field. It also acquaints users of the taxonomic system with recent changes in the system. The eleventh edition of the Keys to Soil Taxonomy incorporates all changes approved since the publication of the second edition of Soil Taxonomy: A Basic System of Soil Classification for Making and Interpreting Soil Surveys (1999).

Earth Observation Thesaurus

"The project aims at developing a controlled and structured terminology system related to GIS and remote sensing. The first phase corresponds to the identification of potential sources of terminology, the selection of proper terms, their extraction and the creation of a terminology database. Terms have been classified according to the EARTh upper structure. The semantic classification foresees the allocation of each term in a relation tree starting from the more general concept represented by the category. The result is a terminology system containing about 3.500 terms.

"The project aims at developing a controlled and structured terminology system related to GIS and remote sensing. The first phase corresponds to the identification of potential sources of terminology, the selection of proper terms, their extraction and the creation of a terminology database. Terms have been classified according to the EARTh upper structure. The semantic classification foresees the allocation of each term in a relation tree starting from the more general concept represented by the category. The result is a terminology system containing about 3.500 terms.

Institut des Risques Majeurs Thésaurus

"Le 'Thésaurus Risques' est un ensemble de termes choisis pour leur capacité à faciliter la description de la thématique des risques majeurs. Il permet de consulter les termes rattachés à un descripteur (ou mot-clé) et de cerner plus facilement un sujet en découvrant son environnement conceptuel. Il est facile et rapide à utiliser : il vous permet de traduire vos mots-clés dans un langage structuré (descripteurs) et fournit un ensemble restreint et plus pertinent de réponses. La recherche par mots-clés du thésaurus donne accès aux descripteurs qui ont été attribués aux documents."

"The 'Risk Thesaurus' is a set of terms chosen for their ability to facilitate the description of the major hazards theme. It allows to consult the terms attached to a descriptor (or keyword) and to more easily identify a subject in It is easy and quick to use: it allows you to translate your keywords into a structured language (descriptors) and provides a restricted and more relevant set of answers. To the descriptors that have been assigned to the documents. "

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