@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> .

ex:RadVelDirHF
    a 
        iop:Variable ;
    rdfs:label 
        "DRVA Direction of radial velocity of water current relative to instrument and to True North by high frequency radar" ;
    rdfs:comment 
        """The compass direction in degrees positive clockwise from TrueNorth of the component of water velocity in a water body along radial lines centered at the HFR antenna.""" ;
    iop:hasObjectOfInterest 
        <http://example.org/iadopt/RDVA_variable> ;
    iop:hasProperty 
        <http://qudt.org/vocab/quantitykind/PlaneAngle> ;
    iop:hasConstraint 
        [ a iop:Constraint ;
             rdfs:label "relative to True North" ;
             iop:constrains <http://qudt.org/vocab/quantitykind/PlaneAngle> ;
        ] .

<http://example.org/iadopt/RDVA_variable>
    a 
        iop:Entity ;
    rdfs:label 
        "RDVA radial velocity (away from) of water current related to instrument" .

<http://qudt.org/vocab/quantitykind/PlaneAngle>
    a 
        iop:Property ;
    rdfs:label 
        "plane angle" .