@prefix qudt:  <http://qudt.org/schema/qudt#> .
@prefix ssd:   <http://www.w3.org/ns/sparql-service-description#> .
@prefix owl:   <http://www.w3.org/2002/07/owl#> .
@prefix xsd:   <http://www.w3.org/2001/XMLSchema#> .
@prefix skos:  <http://www.w3.org/2004/02/skos/core#> .
@prefix rdfs:  <http://www.w3.org/2000/01/rdf-schema#> .
@prefix qudt-unit: <http://qudt.org/vocab/unit#> .
@prefix qb:    <http://purl.org/linked-data/cube#> .
@prefix dgu:   <http://reference.data.gov.uk/def/reference/> .
@prefix ui:    <http://purl.org/linked-data/registry-ui#> .
@prefix dct:   <http://purl.org/dc/terms/> .
@prefix reg:   <http://purl.org/linked-data/registry#> .
@prefix qudt-quantity: <http://qudt.org/vocab/quantity#> .
@prefix grib2-parameter: <http://codes.wmo.int/grib2/schema/parameter/> .
@prefix api:   <http://purl.org/linked-data/api/vocab#> .
@prefix vann:  <http://purl.org/vocab/vann/> .
@prefix prov:  <http://www.w3.org/ns/prov#> .
@prefix foaf:  <http://xmlns.com/foaf/0.1/> .
@prefix common-unit: <http://codes.wmo.int/common/schema/unit/> .
@prefix cc:    <http://creativecommons.org/ns#> .
@prefix grib2-core: <http://codes.wmo.int/grib2/schema/core/> .
@prefix void:  <http://rdfs.org/ns/void#> .
@prefix version: <http://purl.org/linked-data/version#> .
@prefix bufr4-core: <http://codes.wmo.int/bufr4/schema/core/> .
@prefix rdf:   <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix ldp:   <http://www.w3.org/ns/ldp#> .
@prefix time:  <http://www.w3.org/2006/time#> .
@prefix qudt-dimension: <http://qudt.org/vocab/dimension#> .
@prefix vs:    <http://www.w3.org/2003/06/sw-vocab-status/ns#> .
@prefix common-core: <http://codes.wmo.int/common/schema/core/> .
@prefix dc:    <http://purl.org/dc/elements/1.1/> .

<http://codes.wmo.int/common/quantity-kind/aerodromeMeanWindSpeed>
        a                qudt:SpaceAndTimeQuantityKind , qudt:QuantityKind , skos:Concept ;
        rdfs:label       "Aerodrome mean wind speed" ;
        <http://codes.wmo.int/def/common/dimensions>
                "LT-1" ;
        <http://codes.wmo.int/def/common/discipline>
                "Aeronautical quantity kinds" ;
        dct:description  "The mean speed of the wind over the 10-minute period immediately preceding the observation. When the 10-minute period includes a marked discontinuity in the wind characteristics (1), only data after the discontinuity shall be used for obtaining mean wind speed, hence the time interval in these circumstances shall be correspondingly reduced." ;
        skos:notation    "aerodromeMeanWindSpeed" ;
        skos:note        "(1) A marked discontinuity occurs when there is an abrupt and sustained change in wind direction of 30°  or  more,  with  a  wind  speed  of  5  m s-1 (10  KT)  or  more  before  or  after  the change, or a change in wind speed of 5 m s-1 (10 KT) or more, lasting at least two minutes." .