@prefix iop: <https://w3id.org/iadopt/ont/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix ex: <http://example.org/iadopt/HFR> .
@prefix iopp: <https://w3id.org/iadopt/pattern/> .
@prefix sosa: <http://www.w3.org/ns/sosa/> .
@prefix uom: <http://www.ontology-of-units-of-measure.org/resource/om-2/> .
@prefix patt: <http://example.org/iadopt/pattern> .

ex:RadVelErrHF
    a 
        iop:Variable ;
    rdfs:label 
        "RDVA Radial velocity (away from) of water current relative to instrument in the water body by High Frequency Radar" ;
    rdfs:comment 
        """Component of the sea surface current velocity that is directed toward (negative values) or away from (positive values) the High Frequency Radar (HFR) antenna, measured along the lines of sights of the antenna, i.e. along radial lines centered at the HFR antenna.""" ;
    ex:issue "https://github.com/mabablue/I-ADOPT-examples-playground/issues/61" ;
    iop:hasObjectOfInterest 
        <https://www.wikidata.org/entity/Q184395> ;
    iop:hasProperty 
        <https://www.wikidata.org/entity/Q240105> ;
    iop:hasConstraint 
        [ a iop:Constraint ;
             rdfs:label "reference: relative to instrument" ;
             iop:constrains <https://www.wikidata.org/entity/Q240105> ;
        ] ,
        [ a iop:Constraint ;
             rdfs:label "part: surface level" ;
             iop:constrains <https://www.wikidata.org/entity/Q184395> ;
        ] .

<https://www.wikidata.org/entity/Q184395>
    a 
        iop:Entity ;
    rdfs:label 
        "sea water " .

<https://www.wikidata.org/entity/Q240105>
    a 
        iop:Property ;
    rdfs:label 
        "radial velocity" .