@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/49-2/WeatherCausingVisibilityReduction/DS>
        a                skos:Concept ;
        rdfs:label       "Duststorm"@en ;
        dct:description  "Duststorm"@en ;
        owl:versionInfo  <http://icao.int/iwxxm/2025-2> , <http://icao.int/iwxxm/3.0> , <http://icao.int/iwxxm/2023-1> , <http://icao.int/iwxxm/2.1> , <http://icao.int/iwxxm/2021-2> ;
        skos:notation    "DS" .

<http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction>
        a                      ldp:Container , skos:Collection , reg:Register ;
        rdfs:label             "Weather Causing Visibility Reduction"@en ;
        dct:description        "ICAO Annex 3/ WMO No. 49-2 Appendix 6 Section 2.1 under SFC VIS"@en ;
        dct:modified           "2016-12-30T13:26:25.95Z"^^xsd:dateTime ;
        owl:versionInfo        1 ;
        skos:member            <http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction/SQ> , <http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction/GS> , <http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction/BR> , <http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction/VA> , <http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction/SA> , <http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction/HZ> , <http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction/DU> , <http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction/SS> , <http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction/DZ> , <http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction/FU> , <http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction/SG> , <http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction/PL> , <http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction/RA> , <http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction/FG> , <http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction/SN> , <http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction/PO> , <http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction/DS> , <http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction/FC> , <http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction/GR> ;
        ldp:hasMemberRelation  skos:member .

<http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction/VA>
        a                skos:Concept ;
        rdfs:label       "Volcanic Ash"@en ;
        dct:description  "Volcanic Ash"@en ;
        owl:versionInfo  <http://icao.int/iwxxm/2025-2> , <http://icao.int/iwxxm/3.0> , <http://icao.int/iwxxm/2023-1> , <http://icao.int/iwxxm/2.1> , <http://icao.int/iwxxm/2021-2> ;
        skos:notation    "VA" .

<http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction/SN>
        a                skos:Concept ;
        rdfs:label       "Snow"@en ;
        dct:description  "Snow"@en ;
        owl:versionInfo  <http://icao.int/iwxxm/2025-2> , <http://icao.int/iwxxm/3.0> , <http://icao.int/iwxxm/2023-1> , <http://icao.int/iwxxm/2.1> , <http://icao.int/iwxxm/2021-2> ;
        skos:notation    "SN" .

<http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction/BR>
        a                skos:Concept ;
        rdfs:label       "Mist"@en ;
        dct:description  "Mist"@en ;
        owl:versionInfo  <http://icao.int/iwxxm/2025-2> , <http://icao.int/iwxxm/3.0> , <http://icao.int/iwxxm/2023-1> , <http://icao.int/iwxxm/2.1> , <http://icao.int/iwxxm/2021-2> ;
        skos:notation    "BR" .

<http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction/SA>
        a                skos:Concept ;
        rdfs:label       "Sand"@en ;
        dct:description  "Sand"@en ;
        owl:versionInfo  <http://icao.int/iwxxm/2025-2> , <http://icao.int/iwxxm/3.0> , <http://icao.int/iwxxm/2023-1> , <http://icao.int/iwxxm/2.1> , <http://icao.int/iwxxm/2021-2> ;
        skos:notation    "SA" .

<http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction/PO>
        a                skos:Concept ;
        rdfs:label       "Dust/stand whirls"@en ;
        dct:description  "Dust/stand whirls"@en ;
        owl:versionInfo  <http://icao.int/iwxxm/2025-2> , <http://icao.int/iwxxm/3.0> , <http://icao.int/iwxxm/2023-1> , <http://icao.int/iwxxm/2.1> , <http://icao.int/iwxxm/2021-2> ;
        skos:notation    "PO" .

<http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction/FC>
        a                skos:Concept ;
        rdfs:label       "Funnel Cloud"@en ;
        dct:description  "Funnel Cloud"@en ;
        owl:versionInfo  <http://icao.int/iwxxm/2025-2> , <http://icao.int/iwxxm/3.0> , <http://icao.int/iwxxm/2023-1> , <http://icao.int/iwxxm/2.1> , <http://icao.int/iwxxm/2021-2> ;
        skos:notation    "FC" .

<http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction/HZ>
        a                skos:Concept ;
        rdfs:label       "Haze"@en ;
        dct:description  "Haze"@en ;
        owl:versionInfo  <http://icao.int/iwxxm/2025-2> , <http://icao.int/iwxxm/3.0> , <http://icao.int/iwxxm/2023-1> , <http://icao.int/iwxxm/2.1> , <http://icao.int/iwxxm/2021-2> ;
        skos:notation    "HZ" .

<http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction/SG>
        a                skos:Concept ;
        rdfs:label       "Snow grams"@en ;
        dct:description  "Snow grams"@en ;
        owl:versionInfo  <http://icao.int/iwxxm/2025-2> , <http://icao.int/iwxxm/3.0> , <http://icao.int/iwxxm/2023-1> , <http://icao.int/iwxxm/2.1> , <http://icao.int/iwxxm/2021-2> ;
        skos:notation    "SG" .

<http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction/FU>
        a                skos:Concept ;
        rdfs:label       "Smoke"@en ;
        dct:description  "Smoke"@en ;
        owl:versionInfo  <http://icao.int/iwxxm/2025-2> , <http://icao.int/iwxxm/3.0> , <http://icao.int/iwxxm/2023-1> , <http://icao.int/iwxxm/2.1> , <http://icao.int/iwxxm/2021-2> ;
        skos:notation    "FU" .

<http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction/SS>
        a                skos:Concept ;
        rdfs:label       "Sandstorm"@en ;
        dct:description  "Sandstorm"@en ;
        owl:versionInfo  <http://icao.int/iwxxm/2025-2> , <http://icao.int/iwxxm/3.0> , <http://icao.int/iwxxm/2023-1> , <http://icao.int/iwxxm/2.1> , <http://icao.int/iwxxm/2021-2> ;
        skos:notation    "SS" .

<http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction/RA>
        a                skos:Concept ;
        rdfs:label       "Rain"@en ;
        dct:description  "Rain"@en ;
        owl:versionInfo  <http://icao.int/iwxxm/2025-2> , <http://icao.int/iwxxm/3.0> , <http://icao.int/iwxxm/2023-1> , <http://icao.int/iwxxm/2.1> , <http://icao.int/iwxxm/2021-2> ;
        skos:notation    "RA" .

<http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction/DU>
        a                skos:Concept ;
        rdfs:label       "Dust"@en ;
        dct:description  "Dust"@en ;
        owl:versionInfo  <http://icao.int/iwxxm/2025-2> , <http://icao.int/iwxxm/3.0> , <http://icao.int/iwxxm/2023-1> , <http://icao.int/iwxxm/2.1> , <http://icao.int/iwxxm/2021-2> ;
        skos:notation    "DU" .

<http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction/GS>
        a                skos:Concept ;
        rdfs:label       "Small Hail"@en ;
        dct:description  "Small Hail"@en ;
        owl:versionInfo  <http://icao.int/iwxxm/2025-2> , <http://icao.int/iwxxm/3.0> , <http://icao.int/iwxxm/2023-1> , <http://icao.int/iwxxm/2.1> , <http://icao.int/iwxxm/2021-2> ;
        skos:notation    "GS" .

<http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction/FG>
        a                skos:Concept ;
        rdfs:label       "Fog"@en ;
        dct:description  "Fog"@en ;
        owl:versionInfo  <http://icao.int/iwxxm/2025-2> , <http://icao.int/iwxxm/3.0> , <http://icao.int/iwxxm/2023-1> , <http://icao.int/iwxxm/2.1> , <http://icao.int/iwxxm/2021-2> ;
        skos:notation    "FG" .

<http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction/SQ>
        a                skos:Concept ;
        rdfs:label       "Squall"@en ;
        dct:description  "Squall"@en ;
        owl:versionInfo  <http://icao.int/iwxxm/2025-2> , <http://icao.int/iwxxm/3.0> , <http://icao.int/iwxxm/2023-1> , <http://icao.int/iwxxm/2.1> , <http://icao.int/iwxxm/2021-2> ;
        skos:notation    "SQ" .

<http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction/DZ>
        a                skos:Concept ;
        rdfs:label       "Drizzle"@en ;
        dct:description  "Drizzle"@en ;
        owl:versionInfo  <http://icao.int/iwxxm/2025-2> , <http://icao.int/iwxxm/3.0> , <http://icao.int/iwxxm/2023-1> , <http://icao.int/iwxxm/2.1> , <http://icao.int/iwxxm/2021-2> ;
        skos:notation    "DZ" .

<http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction/GR>
        a                skos:Concept ;
        rdfs:label       "Hail"@en ;
        dct:description  "Hail"@en ;
        owl:versionInfo  <http://icao.int/iwxxm/2025-2> , <http://icao.int/iwxxm/3.0> , <http://icao.int/iwxxm/2023-1> , <http://icao.int/iwxxm/2.1> , <http://icao.int/iwxxm/2021-2> ;
        skos:notation    "GR" .

<http://codes.wmo.int/49-2/WeatherCausingVisibilityReduction/PL>
        a                skos:Concept ;
        rdfs:label       "Ice pellets"@en ;
        dct:description  "Ice pellets"@en ;
        owl:versionInfo  <http://icao.int/iwxxm/2025-2> , <http://icao.int/iwxxm/3.0> , <http://icao.int/iwxxm/2023-1> , <http://icao.int/iwxxm/2.1> , <http://icao.int/iwxxm/2021-2> ;
        skos:notation    "PL" .