Observable properties ontology – alignment and usability Simon Cox, Bruce Simons, Jonathan Yu | Environmental Information Systems 12 June 2014 LAND AND WATER

AGU Fall 2013 | IN52B-08 | Cox, Simons, Yu | Vocabulary re-use Healthy Headwater - NGIS Terms collection alt names hierarchy

Are these the same? Cox, Simons, Yu | Observable property ontology “nitrogen” “dissolved nitrogen” “Total nitrogen, water, filtered, milligrams per liter” “Concentration of nitrogen (total) per unit volume of the water body [dissolved plus reactive particulate phase] by oxidation and colorimetric autoanalysis“ “Concentration of nitrogen (total) per unit mass of the water body [dissolved plus reactive particulate <GF/F phase] by filtration and high temperature Pt catalytic oxidation” “Concentration (moles or mass) of total nitrogen (i.e. nitrogen in all chemical forms) in suspended particulate material per unit volume of the water column.” “Concentration of nitrogen (total) {'PON'} per unit volume of the water body [particulate 2-10um phase] by filtration, acidification and elemental analysis” “Dissolved total and organic nitrogen concentrations in the water column” 3 |

‘Parameters’ in an environmental science vocabulary (NVS) Cox, Simons, Yu | Observable property ontology 4 |

O&M OM_Observation +phenomenonTime +resultTime +validTime [0..1] +resultQuality [0..*] +parameter [0..*] GF_PropertyTypeGFI_FeatureOM_ProcessAny +observedProperty 1 0..* +featureOfInterest 1 0..* +procedure 1 +result An Observation is an action whose result is an estimate of the value of some property of the feature-of-interest, obtained using a specified procedure Cox, Simons, Yu | Observable property ontology Cox, OGC Abstract Specification – Topic 20: Observations and Measurements 2.0 ISO 19156:2011 Geographic Information – Observations and measurements 5 |

Requirements Simple properties Constrained properties Compound properties Property series Composite properties Cox, Simons, Yu | Observable property ontology 6 | Cox, OGC Implementation Specification – Observations and Measurements 1.0 – Part 1 – Observation Schema

We are not alone! OKFN Linked Open Vocabularies Cox, Simons, Yu | Observable property ontology 7 |

Conceptual Model of QUDT Cox, Simons, Yu | Observable property ontology 8

Standard ontology of chemicals Cox, Simons, Yu | Observable property ontology > chemical entities 9 |

AGU Fall 2013 | IN52B-08 | Cox, Simons, Yu | Vocabulary re-use Dissolved nitrogen concentration objects ScaledQuantityKind SubstanceOrTaxon Unit

AGU Fall 2013 | IN52B-08 | Cox, Simons, Yu | Vocabulary re-use Water Quality extension to QUDT  QUDT  WQOP

Mix-n-match parameter definitions Concentration of / benz(a)anthracene {CAS } / per unit wet weight of biota / {Limanda limanda (ITIS: : WoRMS ) [Sex: male / Subcomponent: liver]} Cox, Simons, Yu | Observable property ontology 12 | Substance | matrix-relationship | context of matrix (taxon) | matrix | method

AGU Fall 2013 | IN52B-08 | Cox, Simons, Yu | Vocabulary re-use Linked to SKOS

Cox, Simons, Yu | Observable property ontology 14 |

AGU Fall 2013 | IN52B-08 | Cox, Simons, Yu | Vocabulary re-use How does this relate to O&M? [Scaled]QuantityKind qudt:generalization op:constraint Cox, S. J. D. (ed.) (2007). Observations and Measurements – Part 1 - Observation schema. OGC r1, Open Geospatial Consortium Inc. “Concentration” “nitrogen” op:featureOfInterest op:procedure PropertyKind op:matrix op:objectOfInterest

Summary Observable property vocabularies should be Standardized Published Extend / re-use existing vocabularies where possible Publish it somewhere good Cox, Simons, Yu | Observable property ontology 16 |

LAND AND WATER Thank you CSIRO Land and Water Simon Cox Research Scientist t wwww.csiro.au/people/simon.cox

AGU Fall 2013 | IN52B-08 | Cox, Simons, Yu | Vocabulary re-use object.ttl chebi.owl wq.ttl imports into chebi_skos.ttl object-chebi -mapping.ttl imports into imports into manually create skos:exactMatch statements transform subset of owl:Class to skos:Concept add prov:hadPrimarySource Subset of SubstanceOrTaxon Mapping chemical substances to ChEBI manually create skos:exactMatch statements Alternative approach to map skos concepts to ChEBI classes