Unit

Source: AUSPLOTS_RANGELANDS.BASAL_AREA

Interpretation in TERN Plot Ontology

Encoding each row in RDF requires:

todo

Comments

The “hits” field is captured as an observation with the parameter “basal area count”. This is fine but we may not need to capture this since the stand basal area is derived from the number of hits, and the stand basal area is the measurement that users are interested in. This may cause confusion especially since they are both using the same method.
The parameter used to record the basal area is wrong. The basal area calculated in this table is the tree basal area.

Mapping Table

Source Column	Destination RDF Predicate	Comments

Source Column	Destination RDF Predicate	Comments
`id`	`dct:identifier`, `rdfs:label`
`site_location_visit_id`	`plot:wasSubActivityOf`	Domain: `ssn-ext:ObservationCollection` with `dct:type` TERN: Flora Species AUSPLOTS: Plant species per stratum Range: `plot:SiteVisit`
`veg_barcode`	`sosa:hasSample`	Domain: `ssn-ext:ObservationCollection` with `dct:type` TERN: Flora Species AUSPLOTS: Plant species per stratum Range: `sosa:Sample` `sosa:hasResult`: `rdf:type`: `data:Text` `data:value`: `veg_barcode` Create `sosa:Sampling` instance `sosa:usedProcedure`: REVIEWED OK Vegetation vouchering method
`point_id`	`ssn-ext:hasMember`, `sosa:hasResult`	Member of `ssn-ext:ObservationCollection` with `dct:type` TERN: Flora Species AUSPLOTS: Plant species per stratum `sosa:observedProperty`: reviewed Point ID as described in plot layout, , can this be linked to table ‘site location point’? not sure if this should be part of an observation collection? `sosa:usedProcedure`: Plot layout and positioning `sosa:hasResult`: `rdf:type`: `data:Concept` `data:value`: value from collection Basal Point
`hits`	`ssn-ext:hasMember`, `sosa:hasResult`	Member of `ssn-ext:ObservationCollection` with `dct:type` TERN: Flora Species AUSPLOTS: Plant species per stratum `sosa:observedProperty`: Basal Area Count review required TS, this is correct `sosa:usedProcedure`: Basal area method `sosa:hasResult`: `rdf:type`: `data:Count` `data:value`: `hits`
`basal_area_factor`	`ssn-ext:hasMember`, `sosa:hasResult`	review - should this be modelled the same as CORVEG using `sosa:Input`? Member of `ssn-ext:ObservationCollection` with `dct:type` TERN: Flora Species AUSPLOTS: Plant species per stratum `sosa:observedProperty`: Basal Area Factor `sosa:usedProcedure`: Basal area method `sosa:hasResult`: `rdf:type`: `data:QuantitativeMeasure` `data:standard`: todo - it should probably be a controlled vocabulary like CORVEG. TS, yes values are numerical and can only be 0.1, 0.25, 0.5, 0.75, 1, 2 `data:value`: `basal_area_factor`
`basal_area`	`ssn-ext:hasMember`, `sosa:hasResult`	Member of `ssn-ext:ObservationCollection` with `dct:type` TERN: Flora Species AUSPLOTS: Plant species per stratum `sosa:observedProperty`: Basal Area `sosa:usedProcedure`: Basal area method `sosa:hasResult`: `rdf:type`: `data:QuantitativeMeasure` `data:standard`: `unit:M2-PER-HA` `data:value`: `basal_area`

Example Row

id	site_location_visit_id	veg_barcode	point_id	hits	basal_area_factor	basal_area

id	site_location_visit_id	veg_barcode	point_id	hits	basal_area_factor	basal_area
467334	53471	QDA 003733	NW	1	0.1	0.1

Example RDF

@prefix ausplots: <http://linked.data.gov.au/dataset/ausplots/> .
@prefix ausplots-cv: <http://linked.data.gov.au/def/ausplots-cv/> .
@prefix data: <http://linked.data.gov.au/def/datatype/> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix plot: <http://linked.data.gov.au/def/plot/> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix sosa: <http://www.w3.org/ns/sosa/> .
@prefix ssn: <http://www.w3.org/ns/ssn/> .
@prefix ssn-ext: <http://www.w3.org/ns/ssn/ext/> .
@prefix tern-ssn: <https://w3id.org/tern/ontologies/ssn/> .
@prefix time: <http://www.w3.org/2006/time#> .
@prefix unit: <http://qudt.org/vocab/unit/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

ausplots:vs-oc-53471 a ssn-ext:ObservationCollection ;
    rdfs:label "AUSPLOTS Rangelands 'Vegetation Structure' Observation Collection for SiteVisit: '53471'" ;
    plot:wasSubActivityOf ausplots:sv-53471 ;
    dct:type ausplots-cv:3e51e519-b19f-4ad5-9f7a-3a5fcfc50ec0 ;
    sosa:hasFeatureOfInterest [ sosa:isSampleOf ausplots:site-59890 ] ;
    sosa:hasSample ausplots:sample-NO_BARCODE_DEAD_TREE_437249507,
        <http://linked.data.gov.au/dataset/ausplots/sample-QDA++003639>,
        <http://linked.data.gov.au/dataset/ausplots/sample-QDA++003649>,
        <http://linked.data.gov.au/dataset/ausplots/sample-QDA++003663>,
        ...
        <http://linked.data.gov.au/dataset/ausplots/sample-QDA++003735> ;
    ssn-ext:hasMember ausplots:vs-oc-53471-ba-467334-o-1,
        ausplots:vs-oc-53471-ba-467334-o-2,
        ausplots:vs-oc-53471-ba-467334-o-3,
        ausplots:vs-oc-53471-ba-467335-o-1,
        ausplots:vs-oc-53471-ba-467335-o-2,
        ausplots:vs-oc-53471-ba-467335-o-3,
        ...
        ausplots:vs-oc-53471-ba-467367-o-3 .

ausplots:vs-oc-53471-ba-467334-o-1 a sosa:Observation ;
    rdfs:label "SiteVisit: '53471' | Basal Area: '467334' | Observation 1 (POINT_ID)" ;
    dct:identifier 467334 ;
    sosa:hasFeatureOfInterest [ sosa:isSampleOf ausplots:site-59890 ] ;
    sosa:hasResult [ a data:Concept ;
            data:value ausplots-cv:fbf4c3fd-a25f-46f6-bd05-11340e4474eb ] ;
    sosa:observedProperty [ a sosa:ObservableProperty ;
            data:value ausplots-cv:1b8035fc-ceb8-4db6-b643-a2d5bf73046a ] ;
    sosa:phenomenonTime ausplots:t2013-06-13-h15-m1-s0 ;
    sosa:usedProcedure [ a sosa:Procedure ;
            data:value ausplots-cv:f8d621cd-7123-4e12-b57f-319a868c540b ] ;
    tern-ssn:collectedSample <http://linked.data.gov.au/dataset/ausplots/sample-QDA++003733> .

ausplots:vs-oc-53471-ba-467334-o-2 a sosa:Observation ;
    rdfs:label "SiteVisit: '53471' | Basal Area: '467334' | Observation 2 (HITS)" ;
    dct:identifier 467334 ;
    sosa:hasFeatureOfInterest [ sosa:isSampleOf ausplots:site-59890 ] ;
    sosa:hasResult [ a data:Count ;
            data:value 1 ] ;
    sosa:observedProperty [ a sosa:ObservableProperty ;
            data:value ausplots-cv:4cf2b776-7b4a-46c4-b2b2-c0260a687c73 ] ;
    sosa:phenomenonTime ausplots:t2013-06-13-h15-m1-s0 ;
    sosa:usedProcedure [ a sosa:Procedure ;
            data:value ausplots-cv:fe935af0-df09-4365-a57b-316cd75ec7ca ] ;
    tern-ssn:collectedSample <http://linked.data.gov.au/dataset/ausplots/sample-QDA++003733> .

ausplots:vs-oc-53471-ba-467334-o-3 a sosa:Observation ;
    rdfs:label "SiteVisit: '53471' | Basal Area: '467334' | Observation 3 (BASAL_AREA)" ;
    dct:identifier 467334 ;
    sosa:hasFeatureOfInterest [ sosa:isSampleOf ausplots:site-59890 ] ;
    sosa:hasResult [ a data:QuantitativeMeasure ;
            data:standard unit:HA ;
            data:value 1e-01 ] ;
    sosa:observedProperty [ a sosa:ObservableProperty ;
            data:value ausplots-cv:1b8035fc-ceb8-4db6-b643-a2d5bf73046a ] ;
    sosa:phenomenonTime ausplots:t2013-06-13-h15-m1-s0 ;
    sosa:usedProcedure [ a sosa:Procedure ;
            data:value ausplots-cv:fe935af0-df09-4365-a57b-316cd75ec7ca ;
            ssn:hasInput [ a ssn:Input ;
                    data:value 1e-01 ;
                    dct:description "Basal area factor value." ] ] ;
    tern-ssn:collectedSample <http://linked.data.gov.au/dataset/ausplots/sample-QDA++003733> .

ausplots:t2013-06-13-h15-m1-s0 a time:Instant ;
    time:inXSDDateTime "t2013-06-13-h15-m1-s0" .