Official repository for Semantic Web for Earth and Environmental Terminology (SWEET) Ontologies.
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What is SWEET?
SWEET is a highly modular ontology suite with ~6000 concepts in ~200 separate ontologies covering Earth system science. SWEET is a mid-level ontology and consists of nine top-level concepts that can be used as a foundation for domain-specific ontologies that extend these top-level SWEET components. SWEET’s own domain-specific ontologies, which extend the upper level ontologies, can provide users interested in further developing a particular domain with a solid set of concepts to get started. SWEET ontologies are written in W3C Turtle; the Terse RDF Triple Language and are publicly available under the Apache License v2.0.
SWEET as Linked Data
SWEET IRI Patterns for Ontologies and their Terms
See the relevant wiki documentation.
SWEET is governed by the ESIP Semantic Technologies Committee (STC) meaning that all proposed changes are evaluated by a number of subject matter experts. If you would like to learn more about SWEET, or are interested in joining the community, please join our community mailing list.
Recognition of SWEET Contributors
Please see the CONTRIBUTING documentation.
Additionally, if you wish to discuss SWEET issues with the STC, please contact us via the WG email list.
Using local copies of ontology
The sweetall.ttl ontology imports all the other sweet components via URL. If you are offline, or working on updates that require using the local copies of the ontology files, copy the catalog-v001.xml file from the root directory of the repository into the src directory before opening sweetAll.ttl in Protege.
SWEET is available under the CC0 1.0 Universal Public Domain Dedication.
To the extent possible under law, SWEET Ontology Developers have waived all copyright and related or neighboring rights to the Semantic Web for Earth and Environmental Terminology (SWEET) Ontology Suite.
Prior to SWEET 3.5.0, SWEET was licensed under the Apache License v2. For more information on the change, see here.