Ontology visits

(May 2026)

# name visits
1 Observatories of the Seas Ontology (OSO) 2,990
2 Units of measure (BRGM_UOM) 2,204
3 General Multilingual Environmental Thesaurus (GEMET) 601
4 SWEET Ontology (SWEET) 346
5 ACTRIS Vocabulary (ACTRIS_VOCAB) 320
6 Argo Reference Tables (NVS_R) 312
7 Global Change Master Directory Keywords (GCMD) 181
8 Climate and Forecast (CF) features (CFF) 153
9 Sensor, Observation, Sample, and Actuator Ontology (SOSA) 148
10 Governance for vocabularies used within the data centre (NVS_P06) 143
11 Chronostratigraphical / geochronological boundaries (GEOLTSBOUND) 126
12 Semantic Sensor Network Ontology (SSN) 119
13 SIH - Types de jeu de données (SIH_TJDD) 93
14 ODATIS aggregation parameters and Essential Variable names (NVS_OD1) 90
15 Positioning System Ontology (POSO) 65
16 SAREF extension for Smart City (S4CITY) 61
17 Ontology of coordinates reference systems (IGNF) 55
18 Sewer Network Ontology (SEWERNET) 53
19 Earth Feature Type - TerraVocabulary (TERRA_VOCABS_EFT) 47
20 Ontology of administrative units at IGN-France (GEOFLA) 41
21 OGC GeoSPARQL (GSP) 40
22 Territorial Statistical Nomenclature Change Ontology (TSNC) 36
23 Ontology for Meteorological sensors (AWS) 35
24 Environmental Thesaurus (ENVTHES) 32
25 EaSy Data Unified Thesaurus (EASY_DATA_VOCAB) 32
26 OSU-Reunion (OSU-R) 31
27 ACTRIS Controlled List (ACTRIS_CL) 28
28 Territorial Statistical Nomenclature Ontology (TSN) 27
29 Cadastre and Land Administration Thesaurus (CALATHE) 25
30 SeaDataNet Device Thesaurus (SDNDEV) 23
31 Thesaurus Theia (THEIA_THES) 22
32 Centre de données ODATIS (SXT_CDO) 22
33 Argo Ontology (ARG) 18
34 GeoSPARQL (GEOSPARQL) 16
35 NFDI4Earth Ontology (N4E) 14
36 GeoNames Ontology (GEONAMES) 13
37 SeaDataNet device categories (NVS_L05) 9
38 ICES Platform Codes (NVS_C17) 9
39 cartCoordOnt (CART) 9
40 Earth science platforms - TerraVocabulary (TERRA_VOCABS_ESP) 8
41 FormaTerre Thesaurus (FORMATER_VOCAB) 8
42 SeaDataNet Parameter Discovery Vocabulary (NVS_P02) 7
43 Integrated Carbon Observation System (ICOS) 7
44 OSO - DCAT metadata (OSO-DCAT) 6
45 Climate and Forecast Standard Names (NVS_P07) 6
46 SeaVoX Device Catalogue (NVS_L22) 6
47 eLTER Controlled Lists (ELTER_CL) 6
48 Earth science variables - TerraVocabulary (TERRA_VOCABS_ESV) 5
49 Earth Science Sensors - TerraVocabulary (TERRA_VOCABS_ESS) 4
50 Infrastructures de recherche (SXT_IR) 4
51 Simplified Features Geometry (SF) 4
52 The Semantic Time Series Ontology (SEMTS) 3
53 Lithology (BRGM_LTH) 3
54 OSO - VoID description (OSO-VOID) 2
55 Location Ontology (ArCo network) (A-LOC) 2
56 SAREF extension for water (S4WATR) 1
57 Thésaurus ODATIS (ODATIS) 1
58 SeaDataNet Platform categories (NVS Platform Categories_L06) (NVS_L06) 1
59 French Statistical ontology for geolocation (IGEO) 1
60 Chronostratigraphy (GEOLTS) 1
61 WGS84 Geo Positioning (GEO) 1
62 AERIS Thesaurus (AERIS_THES) 1
63 Services Nationaux d'Observation (SXT_SNO) 0
64 Area of benefit (SXT_AOB) 0
65 Semantic Types Ontology (STY) 0
66 SeaVoX salt and fresh water body gazetteer (NVS_C19) 0
67 Geologic Units types (GEOLUNITTYPE) 0
68 Geochronological divisions (DIVGEOCHRONO) 0
69 Chronostratigraphic divisions (DIVCHRONOSTRAT) 0